For Josh about my Bruntons Autoprop. It is the 3 blade H5. It was on
Alianna when I purchased her in 2005. So far i have replaced the hub zinc
once that’s all in 15 years of use in salt water. It is powered by a
Universal M4-30 and has strong reverse and powers Alianna a 35 MK2 at
around 14,000 pounds loaded for cruising well into seas and wind. I sail
with the transmission in forward and i can see a half knot or so speed
increase when it is locked in forward, for example from 6.4 to 6.9. I can
use that as a “passing gear” so that boats getting passed don’t know what
happened All of a sudden like. lol. And it is very quiet.

On Thu, Dec 12, 2019 at 2:21 PM Josh Muckley via CnC-List <
cnc-list@cnc-list.com> wrote:

> I tend to agree with the caveat that we are talking about boats that don't
> exceed 10 kts under motor.  Most of the manufacturers have provision for
> boats less than 10 and those greater than 10.  Obviously those greater than
> 10 are rare in the sailing community.
>
> Josh Muckley
> S/V Sea Hawk
> 1989 C&C 37+
> Solomons, MD
>
> On Thu, Dec 12, 2019, 10:42 AM Robert Boyer via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> I don’t use the vent hose.  I do burp the shaft seal after a launch.  I
>> think having the vent hose adds an unnecessary risk and has very little, if
>> any, benefit.  Just my $0.02.
>>
>> Bob
>>
>> Bob Boyer
>> s/v Rainy Days
>> C&C Landfall 38 (Hull # 230)
>> (Presently in Baltimore for the summer)
>> blog: dainyrays.blogspot.com
>> email: dainyr...@icloud.com
>>
>> On Dec 11, 2019, at 5:31 PM, Marek Dziedzic via CnC-List <
>> cnc-list@cnc-list.com> wrote:
>>
>>  For a vented PYI, you need to make sure that the vent is high enough
>> above the water level or you risk getting burps of water if you need to go
>> into high reverse (e.g. when docking or emergency stopping). Some use a
>> bottle that collect these burps. I plumbed the vent into the sink drain. As
>> long as you open the drain occasionally, no issues.
>>
>> Marek
>>
>> 1994 C270 Legato
>> Ottawa, ON
>>
>>
>> -------- Original message --------
>> From: Ken Heaton via CnC-List <cnc-list@cnc-list.com>
>> Date: 2019-12-11 10:57 (GMT-05:00)
>> To: cnc-list <cnc-list@cnc-list.com>
>> Cc: Ken Heaton <kenhea...@gmail.com>
>> Subject: Re: Stus-List Mechanical shaft seal options
>>
>> Is yours vented?  The vent was added some years ago. With it you never
>> need to burp the seal.  We don't have the vent so occasionally we do have
>> to burp it.  If I ever replace it I will put the same dripless, but with
>> the vent.
>>
>> Ken H.
>>
>> On Tue, 10 Dec 2019 at 13:48, Josh Muckley via CnC-List <
>> cnc-list@cnc-list.com> wrote:
>>
>>> Alright folks,
>>>
>>> I'm looking for thoughts on a replacement for my PYI dripless shaft
>>> seal.  It has worked fine and I'm not afraid to stick with it but I'm
>>> looking for possible options or improvements.
>>>
>>> I've heard of Tides Marine making one and Sailor Sam's sells 4 different
>>> designs by the name Last Drop.
>>>
>>> I'll be pulling and truing the shaft, rebuilding the prop, replacing the
>>> cutlass bearing, replacing the seal.  Anything else I'm forgetting while I
>>> have it apart?
>>>
>>>
>>> Thanks,
>>> Josh Muckley
>>> S/V Sea Hawk
>>> 1989 C&C 37+
>>> Solomons, MD
>>> _______________________________________________
>>>
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>>
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>> _______________________________________________
>>
>> Thanks everyone for supporting this list with your contributions.  Each
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>> _______________________________________________
>
> Thanks everyone for supporting this list with your contributions.  Each
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