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Farmall & IHC Tractors Discussion Forum
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farmall A - oil pump question

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nspec

01-20-2008 16:09:00




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So I"ve got the oil pump out of my A, and I"ve got the cover plate to the pump which I would like to resurface so as to restore a little oil pressure. I"ve read here in the past to put a piece of sandpaper on a piece of glass so it will be perfectly flat and then wet sand it down.

My question is, how fine should the sandpaper be? Also, I was thinking maybe I could use lapping compound right on the glass with no sandpaper? Would I end up with fine glass everywhere?

Thanks in advance for the help!

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john *.?-!.* cub owner

01-20-2008 19:34:27




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 Re: farmall A - oil pump question in reply to nspec, 01-20-2008 16:09:00  
Have you checked the crank and bearings? They are usually a bigger cause of low oil pressure than a worn pump.



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Dave Sherburne NY

01-20-2008 19:31:56




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 Re: farmall A - oil pump question in reply to nspec, 01-20-2008 16:09:00  
Did mine on the cast iron table saw table



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scott#2

01-20-2008 17:10:04




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 Re: farmall A - oil pump question in reply to nspec, 01-20-2008 16:09:00  
Depending on how worn it is, I start witha 260 or so grit and finish it off with a 400, then 600 grit piece. Just take it down to where the gear marks dissapear, maybe more if it looks like their might be a sealing problem where the gasket goes. Make sure your gear to cover clearence is right, think .003 - .008 or so. I like .004 with the thick gasket and hi tack sealer. You may need to hoen the gear face of the non driven gear a bit if it shows circular groovs. Most of those plates are pretty warped and it takes a good bit of time measuring and honing to get it right.

scott#2

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