[AT] JD 430 update

[John Hall]

Make sure the valves aren't stuck, great way to fold up push rods--ask 
me how I know.

I would rock it back and forth using the rear wheels. If its is barely 
stuck, that will free it up. If it is stuck much more than that, you 
stand a good chance of needing to pull the head to remove debris and are 
probably going to need to pull the pistons to free up rings.

Pressurizing the lube in the cylinder is a good idea. I freed up a 2 man 
chainsaw like this. I would plug in the air line with a full tank of air 
and let it sit overnight.

Good Luck! Great to read someone is actually resurrecting and old tractor!

John Hall


On 6/7/2017 11:32 PM, Spencer Yost wrote:
> Since I brought the 430 home, I have been soaking the engine with a mixture of penetrant and ATF. The engine is definitely stuck tighter than a drum. One cylinder appears to very slowly sleep some fluid. The level decreases but not fast(days) and barely enough to raise fluid level in the oil pan.  The other cylinder has not had a single drop decrease in the level of the fluid.
>
> One question for the group: there is no good way to try to rock the engine.  All my normal tricks like ring gear, crankshaft pulley nut, etc. are not accessible or not situated in such a way that it would be safe for the tractor or effective.  Would you try the PTO shaft?  I have not needed to use the PTO shaft before but it seems like the gearing just is not right to generate a lot of torque.   Plus I would need a coupler or adapter or something to protect the shaft from the pipe wrench.
>
> On a positive note; I have done further inspection of the tractor , and I am liking this tractor more and more. It is very clearly a very low hour tractor. There is no slop or play in the power take off,  transmission, rear drivetrains or anything. With the tractor in gear and the engine stuck it barely moves an inch. The only thing that shows any kind of real wear is the universal joint at the steering wheel. But even that wear is at an acceptable level.
>
> Spencer Yost
>
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