Picking up 1957 John Deere 420c crawler 

a great find at a great price !

Good luck, Best wish's.

Glad to see you rescuing this thing. We owned a couple of MTs when I was a kid. They were the tricycle version of the M (standard front axle) and MC (crawler version), all of which were predecessors of the 420. One of our MTs ended up in the hands of someone who knew too little about tractors and did a lot of evil to it, including letting it freeze, which cracked the block. Once John Deere moved to the 30 series numbering, there was also a probably quite rare diesel version, numbered 435. Anyhow, all of them were really good little machines for their tiny size. As a kid, I watched as an MC was left to rot down in the front yard of one of our neighbors. I assume it went for scrap.

the 3pt is a rare find on these and is worth as much as the rest of the machine

That's a great find.

I'd love to have a jd crawler like that. I'd use it for logging

Optima make an excellent 6v battery. It's half the width of a regular 12v (figures), light, and 800CCA if you can believe that. I use it on my Cat D2 electric pony starter. Very happy with it. They're not cheap but I can tell you you get quality for that money

Probably just as well the crank was shot because, had you managed to get it started with all that RTV in there, it would only have been a short while before it clogged all the oil galleries and the engine would've either siezed or threw a conrod throgh the block. Nice little machine for a 2 stroke Detroit Diesel👍👍

You DID great... I just paid 2650.00 for one on auction that is in very bad shape compaired to that one....

That crawler is set up to pull farm equipment, not dozing.

JB weld the out side of block

Don't let those pistons get gone. If they are good almost impossible to find.

The Marvel carburetor is worth $300 alone

Wonder why they didn't braze the crack from the outside. We fixed many old tractors with cracked blocks from them freezing. Might get by just. replacing crank. With a little luck.

If the block is cracked it can be welded. I weld them and have no problems after.

There should have been a push blade for it too...

That hit and miss engine is worth $200 all by itself.

I would not be able to sleep at night knowing I swindled an old lady out of a dozer for $200 I mean yeah I get the point she was going to send it to junk but you're looking at it as value and you know how much it's worth

200$ scrap? how dare they even suggest such a travesty 😠

Try a 12v battery.

I will buy that from you.