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1949 Farmall H

A

Allan from PA

Member
Got the old girl running after almost 30 years sitting and didn't run too bad, no smoke and plenty of power. Second time it ran it didn't run as good, was missing on one cylinder. Checked all the usual culprits and found nothing wrong. Took off valve cover and the push rod for #2 intake valve was off. Valve was not stuck and clearance seemed OK. Started up again and ran fine. Started up later in the week and it happened again. Is it possible that the valve is worn such that it is sticking in the seat causing the push rod to come out of the rocker arm socket? Seems like a valve job in the future? Thanks, Allan.
 
(quoted from post at 05:59:33 07/31/10) Got the old girl running after almost 30 years sitting and didn't run too bad, no smoke and plenty of power. Second time it ran it didn't run as good, was missing on one cylinder. Checked all the usual culprits and found nothing wrong. Took off valve cover and the push rod for #2 intake valve was off. Valve was not stuck and clearance seemed OK. Started up again and ran fine. Started up later in the week and it happened again. Is it possible that the valve is worn such that it is sticking in the seat causing the push rod to come out of the rocker arm socket? Seems like a valve job in the future? Thanks, Allan.
Click to expand...

That #2 intake valve is sticking from time to time. Remove the rocker arm, spray some penetrating oil on that valve stem, tap the stem with a hammer several times until the valve moves freely every time you tap it and then put it all back together again and adjust the valve clearance on ALL of them. Use plenty of penetrating oil. You might also want to pull the offending push rod and make sure it isn't bent. Bent pushrods CAN be straightened by laying them down a solid, flat surface and hammering the bend out.
 
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