Joined: 31 Jul 2006
Location: Edgewater, MD
|Posted: Fri Oct 05, 2007 7:05 am Post subject: Yanmar 3QM30F valve clearance
|I want to check the valve clearance on a 3QM30F engine. I have the spec for clearance from the shop manual, but am not sure of the timing sequence. My interpretation of the timing info given in the shop manual and what I see when manually rotating the shaft do not match up. I am looking for the folllowing info:
1) physical location of cylinders 1, 2 , and 3
2) firing order of same
3) best sequence of rotation to check the clearances and angular displacement to get there.
Almost certainly the 'error' is in my interpretation of the manual. I would be most interested in a response from someone who has performed this task.
Thanks in advance
Katsun, 1981 TYA37 PH