37 A pushrod sleeves-checking and replacing.

FactoryFarmer · Dec 11, 2012

I got the poor old A running and fill the crankcase with water after the new engine was put it. Ok, whatever.

Someone suggested I check the pushrod sleeves going though the water jacket. I pulled the head off and put tight-fitting plastic plugs in the face side of the sleeves and then set the head, on it's face, directly on my bench. I then poured water in the sleeves to see if they would hold it or not. The water would drain maybe a quarter of the way down and stop so I assuming they are leaking somewhere. Was this a good method to test?

Next question, how do I go about replacing them? Tape them out with a perfect size piece of stock and carefully put the new ones in? Can you even get new ones?

Thanks

Mark-Ia · Dec 11, 2012

Yes ypu can drive them out that way. Some people thread the tube with a 5/8 tap and pull them out. DetwilerTractor have the pushrd tubes for $25.00.. When installing, I use some JB weld on the ends of the tubes,install the tubes and then use a slightly cone shaped punch to swedge the end of the tube near the outside of the head.

430WLPG · Dec 11, 2012

the tubes are bigger on one end than the other, and you can crack the head if not careful btdt

Pete in MD · Dec 11, 2012

The original part# for the tubes is AA1615R. That # has been replaced by A2052R. They're available from Deere for $8.78 each. You'll need two.

FactoryFarmer · Dec 11, 2012

Well, it appears when the machine shop drills the manifold threads out they hit BOTH sleeves and put a really nice hole in the side.

Problem found!

Vern H · Dec 12, 2012

FF, I ruined one tube by trying to drive it in with a hammer. A piece of all-thread with nuts and washers does a slick and easy job.
Good luck, VH

37 A pushrod sleeves-checking and replacing.

FactoryFarmer

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Mark-Ia

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430WLPG

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Pete in MD

Well-known Member

FactoryFarmer

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Vern H

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