My CD25D has a Yanmar 1GM engine which works flawlessly. I bought the boat second hand and was told it had only 150 hours on it. The engine now has about 400 hours. I can't find from the records if the head was retorqued at 50 hrs after installation. Should it be done now for safety or should I leave well enough alone? If it is to be retorqued, what is the procedure/sequence?
thanks
jim
james.jamieson@yale.edu
Retorquing Yanmar 1GM
Moderator: Jim Walsh