I agree with you, Doug.

 

My first reaction to the original question was that all diesel engines, by the 
very nature of the high compression needed for ignition of a diesel, are 
interference engines. I couldn’t recall any diesels in my experience that used 
a timing belt instead of a chain or gear train. But I forgot about the 
Pathfinder Diesel, which is essentially a marineized version of a VW Rabbit 
engine.

 

Rick Brass

Washington, NC

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Doug 
Mountjoy via CnC-List
Sent: Friday, July 31, 2020 10:58 AM
To: cnc-list@cnc-list.com
Cc: Doug Mountjoy <svrebeccal...@gmail.com>
Subject: Re: Stus-List Timing Belt

 

The only marine diesel engine using a timing belt that i know of is the VW 
based engine. With the compression ratios of diesels I would imagine they are 
all interference fit engines. Meaning that the valves open into the space of 
where the piston will be at a different point the the cycle. 

 

 

 

Doug Mountjoy

sv Rebecca Leah 

C&C Landfall 39

Port Orchard yacht club

 

-------- Original message --------

From: Robert Abbott via CnC-List <cnc-list@cnc-list.com 
<mailto:cnc-list@cnc-list.com> > 

Date: 7/31/20 07:33 (GMT-08:00) 

To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>  

Cc: Robert Abbott <robertabb...@eastlink.ca <mailto:robertabb...@eastlink.ca> > 

Subject: Stus-List Timing Belt 

 

Has anyone ever experienced an issue with a broken timing belt in our 
marine diesel engines?

A club member had his break recently and it destroyed his engine which 
he choose to replace rather than repair....and not sure if it actually 
could be replaced.   I'll get more info on the exact type of engine and 
the extent of the damage.  He said some marine diesel engine 'timing 
belts' can break but not cause the kind of damage his did.

Rob Abbott
AZURA
C&C 32 - #277
Halifax, N.S.


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