push rod

Lloyd Sorlien · Dec 6, 2009

I bought this H farmall and a push rod was off the tappet. I put it back on and it runs great. Just wondered why it would come off. the tappet was not loose. Any one have any ideas why> Ty.

jd b puller · Dec 6, 2009

Stuck valve? if so, it will do it again in a few heat cycles.

Seth Boyer · Dec 6, 2009

From my experiance the tappet may have been loose. I rebuild the motor on my H and ran it a lot for a month or so but never got it out and really worked it. I made a 15 mile trip taking the tractor to my grandfathers and when I was about a mile from his house I had a valve stick. Not knowing what the problem was at first we pulled it to his house from there. Got the valve unstuck and took it out and with a mile I had the same problem (so I thought) Got it back home and found that a pushrod had jumped out from the tappet.

When I first had the problem with the stuck valve I adjusted the tappet clearance cold at .020. After I had the pushrod jump out I set them at .017 hot like the manual calls for and I haven't had any problems since.

push rod

Lloyd Sorlien

Member

jd b puller

Well-known Member

Seth Boyer

Member

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