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Re: Farmall M miss on one cylinder, oil seeping from intake

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Author  [Modern View]

11-25-2012 15:31:45

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I'll have to get a compression tester, I've misplaced mine, years ago... and see what I have.

I figured since it worked last week, and didn't yesterday, and I've been meaning to give it a tune up before winter so it starts better, I'd start with that, figuring one of the plugs or wires gave up since they were past being replaced.

It's probably time to bite the bullet anyway and rebuilt the head, finally get some unleaded valve guides in it, etc. The oil running/seeping out the bottom of the intake manifold port is really bothering me... something is worn out up there...

I didn't know if someone would know what that might be???

Heck, it might not even be related to the cylinder not firing, that could be a separate issue like the intake valve not opening because something broke. If something was stuck open, I'd expect backfiring if the exhaust was stuck open or messing up the other three's running if the intake was stuck open.

odd... but I guess I'm actually more concerned with the oil seep from the intake manifold than the cylinder not firing.


This post was edited by scruffyia at 15:35:56 11/25/12 2 times.

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11-25-2012 16:43:29

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 Re: Farmall M miss on one cylinder, oil seeping from intake in reply to scruffyia, 11-25-2012 15:31:45  
that oil is due to cyl. not firing as i have a bad valve, no compression on that cyl. that cyl's valves has nothing to do with the other cyl's running. i am leaning to the burnt valve cause they cant be stuck if you say you use the tractor. so check compression then tell us what u find. also can hear a burnt exhaust valve, and thats the ones that burn first. i would not even worry about the compression tester. just hold your thumb over hole while cranking cause there would be no compression to even blow it off. then you know its tear down time in a hurry.

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