Stus-List pipe dope for Exhaust Riser

[CHARLES SCHEAFFER via CnC-List]

Here's a question for the mechanics in the group.
 
I am replacing the engine's exhaust riser or mixing elbow and associated 
threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
can handle the heat and make a good seal and hopefully make it easier to take 
apart for the next person.
 
I've been adised to use Never-Sieze on the bolts holding the flange and want to 
use Megaloc by Hercules on the pipe threads, but don't see any temperature 
stats on the can. 
 
Any suggestions?
 
Chuck Scheaffer, Resolute, 1989 C&C 34R AnnapolisPlease show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Doug Mountjoy via CnC-List]

I use Teflon tape on the pipe threads. A couple of wraps is good.

Douglas Mountjoy
1988 LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA


On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List <
cnc-list@cnc-list.com> wrote:

> Here's a question for the mechanics in the group.
>
> I am replacing the engine's exhaust riser or mixing elbow and associated
> threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope
> that can handle the heat and make a good seal and hopefully make it easier
> to take apart for the next person.
>
> I've been adised to use Never-Sieze on the bolts holding the flange and
> want to use Megaloc by Hercules on the pipe threads, but don't see any
> temperature stats on the can.
>
> Any suggestions?
>
> Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
> Please show your appreciation for this list and the Photo Album site and
> help me pay the associated bills.  Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Jeffrey A. Laman via CnC-List]

I will be very interested in this discussion as I plan to replace my exhaust 
riser assembly soon.  I recently had a propane gas line installed in my house 
and the technician cringed at the telfon tape used on the existing pipe.  Not 
the same thing of course, but never would have expected teflon tape does not 
meet building code!

Also, if anyone reading this thread has a source recommendation for an exhaust 
riser/mixing elbow supplier, I would be grateful.  Engine is a 1981 Yanmar 3GM 
20 hp (not the 30 hp as in many boats).

Jeff Laman
1981 C&C34 Harmony
Ludington, MI

From: Doug Mountjoy via CnC-List 
Sent: Saturday, July 15, 2023 10:01 AM
To: Stus-List 
Cc: Doug Mountjoy 
Subject: Stus-List Re: pipe dope for Exhaust Riser

I use Teflon tape on the pipe threads. A couple of wraps is good.

Douglas Mountjoy
1988 LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA


On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Here's a question for the mechanics in the group.

I am replacing the engine's exhaust riser or mixing elbow and associated 
threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
can handle the heat and make a good seal and hopefully make it easier to take 
apart for the next person.

I've been adised to use Never-Sieze on the bolts holding the flange and want to 
use Megaloc by Hercules on the pipe threads, but don't see any temperature 
stats on the can.

Any suggestions?

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[CHARLES SCHEAFFER via CnC-List]

FWIW, I worked as an HVAC mechanic and know there are teflon tapes rated 
specifically for Gas.  But the only time I used teflon tape is when threads 
were damaged and I followed up with Megaloc on top of it.  I never like using 
tape as threads of tape can wind up clogging valves downstream.  I never liked 
using teflon as tape or paste as I found leaks later.
 
Megaloc works on everything including fuel, water, gas, gasoline, oxygen, 
acids, etc.  My company wound up specifying it for all situations and it paid 
off in the long run.  It's good stuff.
 
C

> On 07/15/2023 10:08 AM EDT Jeffrey A. Laman via CnC-List 
>  wrote:
>  
>  
> I will be very interested in this discussion as I plan to replace my exhaust 
> riser assembly soon.  I recently had a propane gas line installed in my house 
> and the technician cringed at the telfon tape used on the existing pipe.  Not 
> the same thing of course, but never would have expected teflon tape does not 
> meet building code!
>  
> Also, if anyone reading this thread has a source recommendation for an 
> exhaust riser/mixing elbow supplier, I would be grateful.  Engine is a 1981 
> Yanmar 3GM 20 hp (not the 30 hp as in many boats).
>  
> Jeff Laman
> 1981 C&C34 Harmony
> Ludington, MI
>  
> 
> -
> From: Doug Mountjoy via CnC-List 
> Sent: Saturday, July 15, 2023 10:01 AM
> To: Stus-List 
> Cc: Doug Mountjoy 
> Subject: Stus-List Re: pipe dope for Exhaust Riser
>  
> I use Teflon tape on the pipe threads. A couple of wraps is good. 
> 
> Douglas Mountjoy
> 1988 LF 39
> Mexico at large
> 1984 Sabre 34
> Port Orchard, WA
>
> 
> On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List 
> mailto:cnc-list@cnc-list.com> wrote:
> 
> > Here's a question for the mechanics in the group.
> >  
> > I am replacing the engine's exhaust riser or mixing elbow and associated 
> > threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope 
> > that can handle the heat and make a good seal and hopefully make it easier 
> > to take apart for the next person.
> >  
> > I've been adised to use Never-Sieze on the bolts holding the flange and 
> > want to use Megaloc by Hercules on the pipe threads, but don't see any 
> > temperature stats on the can. 
> >  
> > Any suggestions?
> >  
> > Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
> > Please show your appreciation for this list and the Photo Album site and 
> > help me pay the associated bills.  Make a contribution at:
> > https://www.paypal.me/stumurray
> > Thanks for your help.
> > Stu
> > 
> Please show your appreciation for this list and the Photo Album site and help 
> me pay the associated bills. Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
> 
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Matt Wolford via CnC-List]

I’m not a mechanic and have not played one on TV.  Based on the recommendation 
of a very good mechanic, I stopped using Teflon tape and now use Gasoila on 
everything with a pipe thread connection (hot or cold).

 

Matt

C&C 42 Custom

 

From: CHARLES SCHEAFFER via CnC-List  
Sent: Saturday, July 15, 2023 9:30 AM
To: CNC boat owners, cnc-list 
Cc: CHARLES SCHEAFFER 
Subject: Stus-List pipe dope for Exhaust Riser

 

Here's a question for the mechanics in the group. 

  

I am replacing the engine's exhaust riser or mixing elbow and associated 
threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
can handle the heat and make a good seal and hopefully make it easier to take 
apart for the next person. 

  

I've been adised to use Never-Sieze on the bolts holding the flange and want to 
use Megaloc by Hercules on the pipe threads, but don't see any temperature 
stats on the can.  

  

Any suggestions? 

  

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis 

Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[CHARLES SCHEAFFER via CnC-List]

Found Megaloc rated to 400 degrees.  That's the normal temperature of a diesel 
exhaust but it can get up to 1000 degrees when stressed or when there is a 
problem, so I might look for something else.
https://www.firstsupply.com/Product/HCCMEGALOC
 
C

> On 07/15/2023 10:58 AM EDT Matt Wolford via CnC-List  
> wrote:
>  
>  
> 
> I’m not a mechanic and have not played one on TV.  Based on the 
> recommendation of a very good mechanic, I stopped using Teflon tape and now 
> use Gasoila on everything with a pipe thread connection (hot or cold).
> 
>  
> 
> Matt
> 
> C&C 42 Custom
> 
>  
> 
> From: CHARLES SCHEAFFER via CnC-List 
> Sent: Saturday, July 15, 2023 9:30 AM
> To: CNC boat owners, cnc-list 
> Cc: CHARLES SCHEAFFER 
> Subject: Stus-List pipe dope for Exhaust Riser
> 
>  
> 
> Here's a question for the mechanics in the group.
> 
>  
> 
> I am replacing the engine's exhaust riser or mixing elbow and associated 
> threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
> can handle the heat and make a good seal and hopefully make it easier to take 
> apart for the next person.
> 
>  
> 
> I've been adised to use Never-Sieze on the bolts holding the flange and want 
> to use Megaloc by Hercules on the pipe threads, but don't see any temperature 
> stats on the can. 
> 
>  
> 
> Any suggestions?
> 
>  
> 
> Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
> 
> Please show your appreciation for this list and the Photo Album site and help 
> me pay the associated bills. Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
> 
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Korbey Hunt via CnC-List]

White teflon will not seal gas or lubricants.  I use yellow Rector seal #5 with 
reliable results.

Get Outlook for Android

From: CHARLES SCHEAFFER via CnC-List 
Sent: Saturday, July 15, 2023 7:20:59 AM
To: Stus-List 
Cc: Jeffrey A. Laman ; CHARLES SCHEAFFER 

Subject: Stus-List Re: pipe dope for Exhaust Riser

FWIW, I worked as an HVAC mechanic and know there are teflon tapes rated 
specifically for Gas.  But the only time I used teflon tape is when threads 
were damaged and I followed up with Megaloc on top of it.  I never like using 
tape as threads of tape can wind up clogging valves downstream.  I never liked 
using teflon as tape or paste as I found leaks later.

Megaloc works on everything including fuel, water, gas, gasoline, oxygen, 
acids, etc.  My company wound up specifying it for all situations and it paid 
off in the long run.  It's good stuff.

C
On 07/15/2023 10:08 AM EDT Jeffrey A. Laman via CnC-List 
 wrote:


I will be very interested in this discussion as I plan to replace my exhaust 
riser assembly soon.  I recently had a propane gas line installed in my house 
and the technician cringed at the telfon tape used on the existing pipe.  Not 
the same thing of course, but never would have expected teflon tape does not 
meet building code!

Also, if anyone reading this thread has a source recommendation for an exhaust 
riser/mixing elbow supplier, I would be grateful.  Engine is a 1981 Yanmar 3GM 
20 hp (not the 30 hp as in many boats).

Jeff Laman
1981 C&C34 Harmony
Ludington, MI


From: Doug Mountjoy via CnC-List 
Sent: Saturday, July 15, 2023 10:01 AM
To: Stus-List 
Cc: Doug Mountjoy 
Subject: Stus-List Re: pipe dope for Exhaust Riser

I use Teflon tape on the pipe threads. A couple of wraps is good.

Douglas Mountjoy
1988 LF 39
Mexico at large
1984 Sabre 34
Port Orchard, WA


On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Here's a question for the mechanics in the group.

I am replacing the engine's exhaust riser or mixing elbow and associated 
threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
can handle the heat and make a good seal and hopefully make it easier to take 
apart for the next person.

I've been adised to use Never-Sieze on the bolts holding the flange and want to 
use Megaloc by Hercules on the pipe threads, but don't see any temperature 
stats on the can.

Any suggestions?

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills. Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Gary Newton via CnC-List]

Supplier for exhaust /mixing elbow.GM Stainless Steel Mixing Elbowhdimarine.netSent from my iPhoneOn Jul 15, 2023, at 11:57, Korbey Hunt via CnC-List  wrote:




White teflon will not seal gas or lubricants.  I use yellow Rector seal #5 with reliable results.


Get 
Outlook for Android

From: CHARLES SCHEAFFER via CnC-List 
Sent: Saturday, July 15, 2023 7:20:59 AM
To: Stus-List 
Cc: Jeffrey A. Laman ; CHARLES SCHEAFFER 
Subject: Stus-List Re: pipe dope for Exhaust Riser
 



FWIW, I worked as an HVAC mechanic and know there are teflon tapes rated specifically for Gas.  But the only time I used teflon tape is when threads were damaged and I followed up with Megaloc on top of it.  I
 never like using tape as threads of tape can wind up clogging valves downstream. 
I never liked using teflon as tape or paste as I found leaks later.


  

Megaloc works on everything including fuel, water, gas, gasoline, oxygen, acids, etc.  My company wound up specifying it for all situations and it paid off in the long run.  It's good stuff.


  

C 

On 07/15/2023 10:08 AM EDT Jeffrey A. Laman via CnC-List  wrote:

  
  

I will be very interested in this discussion as I plan to replace my exhaust riser assembly soon.  I recently had a propane gas line installed in my house and the technician cringed at the telfon tape used on the existing pipe.  Not the same thing of course,
 but never would have expected teflon tape does not meet building code! 

  

Also, if anyone reading this thread has a source recommendation for an exhaust riser/mixing elbow supplier, I would be grateful.  Engine is a 1981 Yanmar 3GM 20 hp (not the 30 hp as in many boats).


  

Jeff Laman 

1981 C&C34 Harmony 

Ludington, MI 
  

From: Doug Mountjoy via CnC-List 
Sent: Saturday, July 15, 2023 10:01 AM
To: Stus-List 
Cc: Doug Mountjoy 
Subject: Stus-List Re: pipe dope for Exhaust Riser
  


I use Teflon tape on the pipe threads. A couple of wraps is good. 


Douglas Mountjoy 
1988 LF 39 
Mexico at large 
1984 Sabre 34 
Port Orchard, WA 
    



On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List  wrote:




Here's a question for the mechanics in the group.


  

I am replacing the engine's exhaust riser or mixing elbow and associated threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that can handle the heat and make a good seal and hopefully make
 it easier to take apart for the next person. 

  

I've been adised to use Never-Sieze on the bolts holding the flange and want to use Megaloc by Hercules on the pipe threads, but don't see any temperature stats on the can. 


  

Any suggestions? 

  

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis


Please show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:

https://www.paypal.me/stumurray

Thanks for your help. 
Stu 


Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:

https://www.paypal.me/stumurray 
Thanks for your help. 
Stu 



Please show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:https://www.paypal.me/stumurrayThanks for your help.StuPlease show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Gary Newton via CnC-List]

GM Stainless Steel Mixing Elbowhdimarine.netSent from my iPhoneOn Jul 15, 2023, at 11:59, Gary Newton  wrote:Supplier for exhaust /mixing elbow.GM Stainless Steel Mixing Elbowhdimarine.netSent from my iPhoneOn Jul 15, 2023, at 11:57, Korbey Hunt via CnC-List  wrote:




White teflon will not seal gas or lubricants.  I use yellow Rector seal #5 with reliable results.


Get 
Outlook for Android

From: CHARLES SCHEAFFER via CnC-List 
Sent: Saturday, July 15, 2023 7:20:59 AM
To: Stus-List 
Cc: Jeffrey A. Laman ; CHARLES SCHEAFFER 
Subject: Stus-List Re: pipe dope for Exhaust Riser
 



FWIW, I worked as an HVAC mechanic and know there are teflon tapes rated specifically for Gas.  But the only time I used teflon tape is when threads were damaged and I followed up with Megaloc on top of it.  I
 never like using tape as threads of tape can wind up clogging valves downstream. 
I never liked using teflon as tape or paste as I found leaks later.


  

Megaloc works on everything including fuel, water, gas, gasoline, oxygen, acids, etc.  My company wound up specifying it for all situations and it paid off in the long run.  It's good stuff.


  

C 

On 07/15/2023 10:08 AM EDT Jeffrey A. Laman via CnC-List  wrote:

  
  

I will be very interested in this discussion as I plan to replace my exhaust riser assembly soon.  I recently had a propane gas line installed in my house and the technician cringed at the telfon tape used on the existing pipe.  Not the same thing of course,
 but never would have expected teflon tape does not meet building code! 

  

Also, if anyone reading this thread has a source recommendation for an exhaust riser/mixing elbow supplier, I would be grateful.  Engine is a 1981 Yanmar 3GM 20 hp (not the 30 hp as in many boats).


  

Jeff Laman 

1981 C&C34 Harmony 

Ludington, MI 
  

From: Doug Mountjoy via CnC-List 
Sent: Saturday, July 15, 2023 10:01 AM
To: Stus-List 
Cc: Doug Mountjoy 
Subject: Stus-List Re: pipe dope for Exhaust Riser
  


I use Teflon tape on the pipe threads. A couple of wraps is good. 


Douglas Mountjoy 
1988 LF 39 
Mexico at large 
1984 Sabre 34 
Port Orchard, WA 
    



On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List  wrote:




Here's a question for the mechanics in the group.


  

I am replacing the engine's exhaust riser or mixing elbow and associated threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that can handle the heat and make a good seal and hopefully make
 it easier to take apart for the next person. 

  

I've been adised to use Never-Sieze on the bolts holding the flange and want to use Megaloc by Hercules on the pipe threads, but don't see any temperature stats on the can. 


  

Any suggestions? 

  

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis


Please show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:

https://www.paypal.me/stumurray

Thanks for your help. 
Stu 


Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:

https://www.paypal.me/stumurray 
Thanks for your help. 
Stu 



Please show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:https://www.paypal.me/stumurrayThanks for your help.StuPlease show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: C&C 27 Mainsail

[rjcasciato--- via CnC-List]

Peter, how old is this $400 investment??It better be in very good shape or you're going to go down the same path as before.If you decide to keep it.Realize that removing 1 foot off the foot removes the greatest sail area.taking that same foot off the head, almost removes no area.Recutting the top might be less disturbing in the major sail shape.Ron C.On Jul 14, 2023 10:41 PM, Peter Fell via CnC-List  wrote:I've determined the main on my 27 MkIII is actually sized for a MkII. So, P=29ft vs 31ft and E=9.5ft vs 10ft ... which explains why I could never fully hoist to the upper black mark. No idea how old the main is. It has a couple patches. It had some stitching redone about 10 years ago and converted to loose foot at the same time. I recall the loft mamager inspecting it and making several comments at the time, for example on batten pockets, along the lines of "we haven't done things like that for decades" ... so that gives some perspective on age, perhaps. Now I've come across a very decent main for $400 CAD, but it's for a Newport 28. The Newport has a P=32.5ft and E=10.3ft. But I think this particular one measures a P around 32ft. Regardless, a bit bigger than ideal. So I have it from the seller to test fit. I'll see if I can get it into one of the local lofts to be checked out. Thoughts? Drop the boom a bit? Get it recut?
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: C&C 27 Mainsail

[Peter Fell via CnC-List]

I'm not sure at this point the age. It does come from a local loft and I'm
hoping they can give me some more info on it. Don't know the prior owner's
name but I do know the name of the boat.
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[David Knecht via CnC-List]

When i replaced my fuel pump i used gassola on the threads of the nipples.  In order to get the nipples in the right orientation i could not tighten them down hard. If using pipe dope does it matter?  DaveSent from my iPhoneOn Jul 15, 2023, at 12:03 PM, Gary Newton via CnC-List  wrote:GM Stainless Steel Mixing Elbowhdimarine.netSent from my iPhoneOn Jul 15, 2023, at 11:59, Gary Newton  wrote:Supplier for exhaust /mixing elbow.GM Stainless Steel Mixing Elbowhdimarine.netSent from my iPhoneOn Jul 15, 2023, at 11:57, Korbey Hunt via CnC-List  wrote:




White teflon will not seal gas or lubricants.  I use yellow Rector seal #5 with reliable results.


Get 
Outlook for Android

From: CHARLES SCHEAFFER via CnC-List 
Sent: Saturday, July 15, 2023 7:20:59 AM
To: Stus-List 
Cc: Jeffrey A. Laman ; CHARLES SCHEAFFER 
Subject: Stus-List Re: pipe dope for Exhaust Riser
 



FWIW, I worked as an HVAC mechanic and know there are teflon tapes rated specifically for Gas.  But the only time I used teflon tape is when threads were damaged and I followed up with Megaloc on top of it.  I
 never like using tape as threads of tape can wind up clogging valves downstream. 
I never liked using teflon as tape or paste as I found leaks later.


  

Megaloc works on everything including fuel, water, gas, gasoline, oxygen, acids, etc.  My company wound up specifying it for all situations and it paid off in the long run.  It's good stuff.


  

C 

On 07/15/2023 10:08 AM EDT Jeffrey A. Laman via CnC-List  wrote:

  
  

I will be very interested in this discussion as I plan to replace my exhaust riser assembly soon.  I recently had a propane gas line installed in my house and the technician cringed at the telfon tape used on the existing pipe.  Not the same thing of course,
 but never would have expected teflon tape does not meet building code! 

  

Also, if anyone reading this thread has a source recommendation for an exhaust riser/mixing elbow supplier, I would be grateful.  Engine is a 1981 Yanmar 3GM 20 hp (not the 30 hp as in many boats).


  

Jeff Laman 

1981 C&C34 Harmony 

Ludington, MI 
  

From: Doug Mountjoy via CnC-List 
Sent: Saturday, July 15, 2023 10:01 AM
To: Stus-List 
Cc: Doug Mountjoy 
Subject: Stus-List Re: pipe dope for Exhaust Riser
  


I use Teflon tape on the pipe threads. A couple of wraps is good. 


Douglas Mountjoy 
1988 LF 39 
Mexico at large 
1984 Sabre 34 
Port Orchard, WA 
    



On Sat, Jul 15, 2023, 06:30 CHARLES SCHEAFFER via CnC-List  wrote:




Here's a question for the mechanics in the group.


  

I am replacing the engine's exhaust riser or mixing elbow and associated threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that can handle the heat and make a good seal and hopefully make
 it easier to take apart for the next person. 

  

I've been adised to use Never-Sieze on the bolts holding the flange and want to use Megaloc by Hercules on the pipe threads, but don't see any temperature stats on the can. 


  

Any suggestions? 

  

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis


Please show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:

https://www.paypal.me/stumurray

Thanks for your help. 
Stu 


Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at:

https://www.paypal.me/stumurray 
Thanks for your help. 
Stu 



Please show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:https://www.paypal.me/stumurrayThanks for your help.StuPlease show your appreciation for this list and the Photo Album site and help me pay the associated bills.  Make a contribution at:https://www.paypal.me/stumurrayThanks for your help.StuPlease show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Korbey Hunt via CnC-List]

Permatex high heat

Get Outlook for Android

From: CHARLES SCHEAFFER via CnC-List 
Sent: Saturday, July 15, 2023 6:30:20 AM
To: CNC boat owners, cnc-list 
Cc: CHARLES SCHEAFFER 
Subject: Stus-List pipe dope for Exhaust Riser

Here's a question for the mechanics in the group.

I am replacing the engine's exhaust riser or mixing elbow and associated 
threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
can handle the heat and make a good seal and hopefully make it easier to take 
apart for the next person.

I've been adised to use Never-Sieze on the bolts holding the flange and want to 
use Megaloc by Hercules on the pipe threads, but don't see any temperature 
stats on the can.

Any suggestions?

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[Matt Wolford via CnC-List]

FYI, the link below is to Gasoila technical information.

 

https://www.jmesales.com/content/docs/Gasoila/TDS-soft-set.pdf

 

 

 

From: CHARLES SCHEAFFER  
Sent: Saturday, July 15, 2023 11:18 AM
To: Stus-List 
Cc: wolf...@erie.net
Subject: Re: Stus-List Re: pipe dope for Exhaust Riser

 

Found Megaloc rated to 400 degrees.  That's the normal temperature of a diesel 
exhaust but it can get up to 1000 degrees when stressed or when there is a 
problem, so I might look for something else. 

https://www.firstsupply.com/Product/HCCMEGALOC 

  

  

C 

On 07/15/2023 10:58 AM EDT Matt Wolford via CnC-List mailto:cnc-list@cnc-list.com> > wrote: 

  

  

I’m not a mechanic and have not played one on TV.  Based on the recommendation 
of a very good mechanic, I stopped using Teflon tape and now use Gasoila on 
everything with a pipe thread connection (hot or cold).

 

Matt

C&C 42 Custom

 

From: CHARLES SCHEAFFER via CnC-List mailto:cnc-list@cnc-list.com> > 
Sent: Saturday, July 15, 2023 9:30 AM
To: CNC boat owners, cnc-list mailto:cnc-list@cnc-list.com> >
Cc: CHARLES SCHEAFFER mailto:cscheaf...@comcast.net> >
Subject: Stus-List pipe dope for Exhaust Riser

 

Here's a question for the mechanics in the group. 

  

I am replacing the engine's exhaust riser or mixing elbow and associated 
threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
can handle the heat and make a good seal and hopefully make it easier to take 
apart for the next person. 

  

I've been adised to use Never-Sieze on the bolts holding the flange and want to 
use Megaloc by Hercules on the pipe threads, but don't see any temperature 
stats on the can.  

  

Any suggestions? 

  

Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis 

Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills. Make a contribution at: 
https://www.paypal.me/stumurray 
Thanks for your help. 
Stu 

Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[CHARLES SCHEAFFER via CnC-List]

Gasoila looks like a good product, and it is rated for heat up to 600 degrees.  
I think Megaloc is superior.  Diesel exhaust can be 1000 to 1200 degrees so I'm 
still looking.
 
Thanks,
Chuck S

> On 07/15/2023 4:01 PM EDT Matt Wolford via CnC-List  
> wrote:
>  
>  
> 
> FYI, the link below is to Gasoila technical information.
> 
>  
> 
> https://www.jmesales.com/content/docs/Gasoila/TDS-soft-set.pdf
> 
>  
> 
>  
> 
>  
> 
> From: CHARLES SCHEAFFER 
> Sent: Saturday, July 15, 2023 11:18 AM
> To: Stus-List 
> Cc: wolf...@erie.net
> Subject: Re: Stus-List Re: pipe dope for Exhaust Riser
> 
>  
> 
> Found Megaloc rated to 400 degrees.  That's the normal temperature of a 
> diesel exhaust but it can get up to 1000 degrees when stressed or when there 
> is a problem, so I might look for something else.
> 
> https://www.firstsupply.com/Product/HCCMEGALOC 
> https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.firstsupply.com%2fProduct%2fHCCMEGALOC&c=E,1,TA10JgQMBUudqWN5w6mDVysyfki1LK70XQgXsS9d5D848zCMF8VFDbzjbWOdmlaRHi6YJpIqZ-pGBBYGx4h8ij16JQ1xUHs5ebfdhrbUW7lHPKTY0KYb2DtAycgT&typo=1
> 
>  
> 
> C
> 
> > 
> > On 07/15/2023 10:58 AM EDT Matt Wolford via CnC-List  > mailto:cnc-list@cnc-list.com> wrote:
> > 
> >  
> > 
> >  
> > 
> > I’m not a mechanic and have not played one on TV.  Based on the 
> > recommendation of a very good mechanic, I stopped using Teflon tape and now 
> > use Gasoila on everything with a pipe thread connection (hot or cold).
> > 
> >  
> > 
> > Matt
> > 
> > C&C 42 Custom
> > 
> >  
> > 
> > From: CHARLES SCHEAFFER via CnC-List  > mailto:cnc-list@cnc-list.com>
> > Sent: Saturday, July 15, 2023 9:30 AM
> > To: CNC boat owners, cnc-list  > mailto:cnc-list@cnc-list.com>
> > Cc: CHARLES SCHEAFFER mailto:cscheaf...@comcast.net>
> > Subject: Stus-List pipe dope for Exhaust Riser
> > 
> >  
> > 
> > Here's a question for the mechanics in the group.
> > 
> >  
> > 
> > I am replacing the engine's exhaust riser or mixing elbow and associated 
> > threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope 
> > that can handle the heat and make a good seal and hopefully make it easier 
> > to take apart for the next person.
> > 
> >  
> > 
> > I've been adised to use Never-Sieze on the bolts holding the flange and 
> > want to use Megaloc by Hercules on the pipe threads, but don't see any 
> > temperature stats on the can. 
> > 
> >  
> > 
> > Any suggestions?
> > 
> >  
> > 
> > Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
> > 
> > Please show your appreciation for this list and the Photo Album site and 
> > help me pay the associated bills. Make a contribution at:
> > https://www.paypal.me/stumurray
> > Thanks for your help.
> > Stu
> > 
> Please show your appreciation for this list and the Photo Album site and help 
> me pay the associated bills. Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
> 
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[CHARLES SCHEAFFER via CnC-List]

Permatex High Heat looks to be only rated to 400 degrees.
 
https://www.amazon.com/Permatex-59235-Temperature-Thread-Sealant/dp/B000AAJTYS/ref=asc_df_B000AAJTYS?tag=bngsmtphsnus-20&linkCode=df0&hvadid=80814222102116&hvnetw=s&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4584413749590749&th=1
 
C

> On 07/15/2023 3:48 PM EDT Korbey Hunt via CnC-List  
> wrote:
>  
>  
> Permatex high heat
>  
> Get Outlook for Android https://aka.ms/AAb9ysg
> 
> -
> From: CHARLES SCHEAFFER via CnC-List 
> Sent: Saturday, July 15, 2023 6:30:20 AM
> To: CNC boat owners, cnc-list 
> Cc: CHARLES SCHEAFFER 
> Subject: Stus-List pipe dope for Exhaust Riser
>  
> Here's a question for the mechanics in the group.
>  
> I am replacing the engine's exhaust riser or mixing elbow and associated 
> threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
> can handle the heat and make a good seal and hopefully make it easier to take 
> apart for the next person.
>  
> I've been adised to use Never-Sieze on the bolts holding the flange and want 
> to use Megaloc by Hercules on the pipe threads, but don't see any temperature 
> stats on the can. 
>  
> Any suggestions?
>  
> Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
> Please show your appreciation for this list and the Photo Album site and help 
> me pay the associated bills. Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
> 
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: pipe dope for Exhaust Riser

[CHARLES SCHEAFFER via CnC-List]

Found Permatex Muffler Repair rated to 2000 degrees, but it looks rather 
permanent. 
 
https://shop.advanceautoparts.com/p/permatex-muffler-tailpipe-sealer-3-oz-80335/7020007-p?c3ch=PLA&c3nid=7020007-P&adtype=&product_channel=Online&store_code=&msclkid=8d8d1fbd400312ef30ed7b0e4220e961&gclsrc=ds
 
Chuck S

> On 07/15/2023 3:48 PM EDT Korbey Hunt via CnC-List  
> wrote:
>  
>  
> Permatex high heat
>  
> Get Outlook for Android https://aka.ms/AAb9ysg
> 
> -
> From: CHARLES SCHEAFFER via CnC-List 
> Sent: Saturday, July 15, 2023 6:30:20 AM
> To: CNC boat owners, cnc-list 
> Cc: CHARLES SCHEAFFER 
> Subject: Stus-List pipe dope for Exhaust Riser
>  
> Here's a question for the mechanics in the group.
>  
> I am replacing the engine's exhaust riser or mixing elbow and associated 
> threaded 1 1/4" and 1 1/2" nipples, and want to use the right pipe dope that 
> can handle the heat and make a good seal and hopefully make it easier to take 
> apart for the next person.
>  
> I've been adised to use Never-Sieze on the bolts holding the flange and want 
> to use Megaloc by Hercules on the pipe threads, but don't see any temperature 
> stats on the can. 
>  
> Any suggestions?
>  
> Chuck Scheaffer, Resolute, 1989 C&C 34R Annapolis
> Please show your appreciation for this list and the Photo Album site and help 
> me pay the associated bills. Make a contribution at:
> https://www.paypal.me/stumurray
> Thanks for your help.
> Stu
> 
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: C&C 27 Mainsail

[Korbey Hunt via CnC-List]

Precision Sails in Vancouver do a good job for a fair price if you decide to 
get a new one.

Get Outlook for Android

From: Peter Fell via CnC-List 
Sent: Friday, July 14, 2023 7:41:25 PM
To: 1 CnC List 
Cc: Peter Fell 
Subject: Stus-List C&C 27 Mainsail

I've determined the main on my 27 MkIII is actually sized for a MkII. So, 
P=29ft vs 31ft and E=9.5ft vs 10ft ... which explains why I could never fully 
hoist to the upper black mark. No idea how old the main is. It has a couple 
patches. It had some stitching redone about 10 years ago and converted to loose 
foot at the same time. I recall the loft mamager inspecting it and making 
several comments at the time, for example on batten pockets, along the lines of 
"we haven't done things like that for decades" ... so that gives some 
perspective on age, perhaps.

Now I've come across a very decent main for $400 CAD, but it's for a Newport 
28. The Newport has a P=32.5ft and E=10.3ft. But I think this particular one 
measures a P around 32ft. Regardless, a bit bigger than ideal. So I have it 
from the seller to test fit. I'll see if I can get it into one of the local 
lofts to be checked out.

Thoughts? Drop the boom a bit? Get it recut?
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu

Stus-List Re: C&C 27 Mainsail

[Peter Fell via CnC-List]

Thanks.

If I were to get a new one, I'd go with Leitch & McBride. Awesome product &
service ... and would match my genoa. But that's not in the cards right now.
Please show your appreciation for this list and the Photo Album site and help 
me pay the associated bills.  Make a contribution at:
https://www.paypal.me/stumurray
Thanks for your help.
Stu