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Old 05-10-2007, 09:03   #1
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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
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Old 05-10-2007, 10:12   #2
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the seloc manual from amazon will tell you this and much more.
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Old 05-10-2007, 18:29   #3
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Quote:
Originally Posted by gonesail View Post
the seloc manual from amazon will tell you this and much more.
Can you refer me to a specific volume? My search at Amozon resulted in manuals for outboards only.
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Old 06-10-2007, 23:06   #4
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The first time I did my valve adjustment on my 3QM30F I hired a Yanmar mechanic to walk me through it. I did all the work but had him there with me. Took longer so cost more, but I hope I learned something. Will know the next time I have to do it. I'll see if I can find my notes.


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Old 07-10-2007, 07:19   #5
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Quote:
Originally Posted by Bill_L View Post
Can you refer me to a specific volume? My search at Amozon resulted in manuals for outboards only.
Yanmar Inboards 1975-1998 Repair Manual.
Amazon.com: Yanmar Inboards, 1975-98 (Seloc Marine Manuals): Books: Seloc
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Old 08-10-2007, 06:59   #6
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Thanks much, you search better than I do!
I will check it out.
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