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:ditto: I think we both agree that doing cylinder two's valve adjustment on A or on B does create a difference. Just neither one of us has done a comparrison test on a known good running motor. My opinion is an engineering (the·o·ret·i·cal) judgemnet based on the Onan Service manual, the...

I still believe it should be A both times. The fact that Jerry's went from white smoke to black smoke leads me to believe this also. White smoke is unburnt fuel, Black smoke is partially burnt fuel. So, I would think higher compression due to adjusting the valve on A vs. B. (White vs...

I did readjust the valves. Made a difference using the "A" mark both times. The number 2 cylinder was off quite a bit. Ran with less smoke on start up. Still had poor pressure and a but load of blow by. More info on post #16 @...

Ok, That makes sense with what I was saying. (See page 56 second column in Ike's link) It should be "A" both times on the 002A. (The 003A procedure is on page 57 and matches the TM)

So, played with my MEP 002A last weekend. Went up to N1OTY's and compared my and his. (His is nicer :oops: ) Decided that I want to re-adjust the valve clearance again before pulling the injectors. I will then send them out for test/cleaning/rebuilding. Is the TM valve adjustment procedure...