I am approaching 400-500 hr on the 1GM in my CD25D. I don't believe the head gasket was ever retorqued when the engine was new and wonder if it needs to be done now after all this time. What is the manufacturere's suggestion - I seem to get lots of opinions that range from doing nothing to do it now!
jim
james.jamieson@yale.edu
Yanmar Head Gasket
Moderator: Jim Walsh
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stephen sousa
Re: Yanmar Head Gasket
Jim,Jim Jamieson wrote: I am approaching 400-500 hr on the 1GM in my CD25D. I don't believe the head gasket was ever retorqued when the engine was new and wonder if it needs to be done now after all this time. What is the manufacturere's suggestion - I seem to get lots of opinions that range from doing nothing to do it now!
jim
The manual requires that you touque the head gasket after 50 hours of use. Following this activity the valves should also be adjusted.
Stephen
sousa_stephen@emc.com