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52 JD -A - Needs rings!

M

MARV2015

Member
OK - the short version of my request - Where and who should I go to get a new set of rings for my A????

Long version ----- My A siezed up and quit. I discovered the #1 rod had spot welded itself to the crankshaft. I took the pistons, rods and crankshaft out. The rod had spot welded itself to the crankshaft. I took the pistons, rods and crankshaft out. My finding inside was the babbit had melted and splattered everywhere.

The parts A that I have had rods, pistons and crank in good shape. The parts A has bearing shells installed. My plan is to install these parts into my newer tractor.

I am not too sure on what to do about the rings. Measure the original pistons which appear to be stock size or measure the bore whiich I'm sure has some wear.

The pistons that came out of my parts tractor are 125 thousands over size. If I were to use them I would have to bore the block.

Any advice or suggestions???
 
You would have to measure everything carefully and make the best of what you
have to come up with a good tractor for the least money.

You will have to make sure the bore is the correct size for the pistons, and
if it is less than .125 over it will have to be bored.
The right rings for the pistons you intend to use must be correct for the pistons, in every dimension.
More measuring, and cleaning up the ring lands in the pistons, and maybe some shims.
A machine shop consultation might be a good first step.
 

That is on the list of things to check. I need to clean the entire crankcase, there is babbit splatter everywhere. and of course check ALL oil lines!

Last choice for me would be to take the parts A pistons, use them, and bore block to .125 over and reassemble. I guess time wise, that might be the best thing to do.

The block from the parts A is allready bored but could be sleeved back to standard size as well.
 
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