420 crawler 1957
420 crawler 1957
anyone would know where i could get an engine for my 420 crawler, 113ci liquid cool. thanks
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- 2010 crawler
- Posts: 597
- Joined: Thu Aug 27, 2009 10:08 pm
- Location: Edmonton, Alberta
Road Trip To Alberta
We have a few but a fair drive to get them. If your is salvageable, they are fairly easy to rebuild and the parts are reasonable.
I just did my 420 engine. I had to go 40 over and have my crank down. Did save on pistons as we had a real good set of used on hand. It was the first engine I assembled by myself and runs great. Waiting on some items from Lavoy to finish it and I will post some pictures.
I just did my 420 engine. I had to go 40 over and have my crank down. Did save on pistons as we had a real good set of used on hand. It was the first engine I assembled by myself and runs great. Waiting on some items from Lavoy to finish it and I will post some pictures.
Jason Benesch
John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors
John Deere 420, 430, 440 & 350C With 3 Point Hitch
John Deere 400G With Winch
John Deere 2010 Crawler Dozer
John Deere 420, 430, 435 & 440 Wheel Tractors
Re: 420 crawler 1957
Two Cylinder Tractors Cost Less to Operate
- DukeofDeere
- 1010 crawler
- Posts: 443
- Joined: Wed Oct 26, 2011 7:12 am
- Location: Hudsonville Michigan
thanks, i think mine is in really bad shape, got a broken piston, my 2 cylinder have a noticeable edge at the top, can't get my piston to get out from top, rings get stuck on that edge. notice some damage where connecting rod connect to crankshaft, that what i;m saw so far. regretting paying to get my cylinder head done last summer. that why i;m trying to find an engine.
Keep in mind, nothing says the used engine you get is any better than the used engine you have now. Engine parts are readily available, why not rebuild yours.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
X2 LAVOY plus he already has a rebuilt head AS for getting the pistons out you might have to get a ridge reamer or at least take a hone with the piston at the bottom an knock some of the ridge down
2010 with 622 dozer with mod. 35 ripper and a 2010 with 622 dozer bought in 1969 and a 2010 loader with drott and mod. 36 ripper
It is not a sleeved engine, so no specific sleeve for it, machine shop just orders by bore and height and machines to fit. Can't it be bored for oversize? Sleeving is a double bore and decking, plus the cost of the sleeves, way cheaper just to go oversize.
Lavoy
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
- Stan Disbrow
- 350 crawler
- Posts: 2898
- Joined: Fri Jul 15, 2005 3:13 pm
- Location: Raleigh, NC
Hi,
Bores wear in an egg shape across the bore, and in an hourglass shape along the stroke. The only way to true the cylinder is to bore it.
So, no. There is no reusing the original pistons. There are usually two oversizes for replacement pistons, with the idea that you can bore twice for rebuilds before the block is junked.
When blocks become scarce, then sleeves can be had. But, as Lavoy pointed out, using those gets even more expensive. There is more machine shop time required. Even then, they don't always wind up using the original piston size.
With your having such a ridge at the top, that tells me your bores are quite worn at this point. You might have the original size pistons yet have so much wear you have to jump over the first oversize and go to the second to get it true again....
Stan
Bores wear in an egg shape across the bore, and in an hourglass shape along the stroke. The only way to true the cylinder is to bore it.
So, no. There is no reusing the original pistons. There are usually two oversizes for replacement pistons, with the idea that you can bore twice for rebuilds before the block is junked.
When blocks become scarce, then sleeves can be had. But, as Lavoy pointed out, using those gets even more expensive. There is more machine shop time required. Even then, they don't always wind up using the original piston size.
With your having such a ridge at the top, that tells me your bores are quite worn at this point. You might have the original size pistons yet have so much wear you have to jump over the first oversize and go to the second to get it true again....
Stan
There's No Such Thing As A Cheap Crawler!
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
Useta Have: '58 JD 420c 5-roller w/62 inside blade
Useta Have: '78 JD350C w/6310 outside blade
Useta Have: '68 JD350, '51 Terratrac GT-25
Have: 1950 M, 2005 x495, 2008 5103 (now known as 5045D)
If you use your old pistons, it will still cost the same money as you have the cost of the sleeves, the cost of boring the block, installing the sleeves, decking the block, and boring the sleeves. When you are done, you have a nice square bore with two old worn out pistons in it, all in all, a waste of time.
As to the overhaul kit, again maybe I sound like a whiny 3rd grade girl, but me selling parts pays for the website you are on for free asking where to buy parts.
The oversizes JT mentioned are normally readily available, I have sold and used more sets than I can count.
Lavoy
As to the overhaul kit, again maybe I sound like a whiny 3rd grade girl, but me selling parts pays for the website you are on for free asking where to buy parts.
The oversizes JT mentioned are normally readily available, I have sold and used more sets than I can count.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
Owner and moderator www.jdcrawlers.com
Owner and moderator www.jdcrawlers.com
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