4020 gas engine

Todd1969 · Dec 19, 2017

Is a running 4020 gas engine worth anything . It is sitting in my garage. Have tried selling it, no takers but I hate to just throw it away.

tim s · Dec 19, 2017

A few years ago I had 4 4020 Gas engines on the pallet rack, one had just been over hauled before I took it out,,so I put the best one in the Farm and Dairy paper for North Eastern Ohio,,thinking some one might want it for a winter feeding tractor,,I got one call and the guy wanted to know what I did with the rest of the tractor,,I couldn't give them away so they went to the scrape yard...which is right where they belong...

Todd1969 · Dec 19, 2017

Thanks that is what I though

tomstractorsandtoys · Dec 19, 2017

If if it has a Zenith carb that is worth more than the rest of the engine. Tom

fastfarmall · Dec 19, 2017

Hey Tom, so what are those zenith carburetor's used on ?

JD Seller · Dec 19, 2017

Maybe one of the fellows on here that can make a JD 4020 gas run "right" will want a spare motor.

I have a good friend that runs a salvage yard. He does not even worry with the gas JD motors. They go in a big pile out back and when scrap goes up they get hauled to town.

jd adict · Dec 19, 2017

hey todd, i am looking for a 4020 engine but it has to be a correct year
is it possible you could send me some pix
any idea what year you think it is.
my email is open.
thanks

tomstractorsandtoys · Dec 20, 2017

The zenith carb (cast iron) is much better than the Marvel carb on a 4020 or 3020. They seem to start and work better. I still am not a fan of 3020-4020 gas tractors. I have also sold some 105 combine zenith carbs to go on 4020's. I am not sure any older gas tractor runs good on today's gas. Tom

Tech 7 · Dec 20, 2017

Might have a line on what I believe is a '66 vintage. (We are both in Ontario)

travis miranowski · Dec 20, 2017

Probably the best thing to do with a JD gas engine is melt it down and make something useful out of it!

WTW · Dec 20, 2017

I got a recent take out complete with starter, PS flywheel, generator, Cast Iron Zenith carburetor, new intake and exhaust manifolds. Good engine just a gas. Can be started and hear it run. $1200.00 Takes it all. Located in Eastern Iowa. Three19-3eight9-six1three1.

D- · Dec 20, 2017

Not much market....
In my case I have two 4020 loader tractors.
Thought I wouldn't want a gas but they start
in any weather. I can run them in the shop
removing engines etc. For those reasons I
prefer the gas but these are special circumstances.
They would use too much fuel and produce too much
heat for most regular jobs.

Todd1969 · Dec 20, 2017

It is a 68 I'll get you some pictures

Bob Harvey · Dec 20, 2017

Yeah right - are you including 2 cyl. units in this wonderful statement ?

WGM · Dec 20, 2017

So what you are saying is carbon monoxide from a John Deere gasoline engine is harmless.

jd adict · Dec 21, 2017

do you know the year of this COMPLETE engine off hand.??

jd adict · Dec 21, 2017

tech 7 give me a shout through email and we can stay in touch on it
thanks

jr1983 · Dec 22, 2017

If you're close enough I might be interested. Shoot me an email.

Todd1969 · Dec 23, 2017

I live in south east Ohio

Todd1969 · Dec 24, 2017

I live near Marietta oh in the South east come corner

Todd1969 · Dec 24, 2017

jr1983 · Dec 24, 2017

Sorry IL to far thanks

hulkster63 · May 29, 2022

(quoted from post at 10:00:04 12/20/17) I got a recent take out complete with starter, PS flywheel, generator, Cast Iron Zenith carburetor, new intake and exhaust manifolds. Good engine just a gas. Can be started and hear it run. $1200.00 Takes it all. Located in Eastern Iowa. Three19-3eight9-six1three1.

Do you happen to still have the gas engine for a 4030 John Deere? If so what year of a tractor was it in? Thanks Rob

used red MN · May 29, 2022

(quoted from post at 12:21:27 05/29/22)

(quoted from post at 10:00:04 12/20/17) I got a recent take out complete with starter, PS flywheel, generator, Cast Iron Zenith carburetor, new intake and exhaust manifolds. Good engine just a gas. Can be started and hear it run. $1200.00 Takes it all. Located in Eastern Iowa. Three19-3eight9-six1three1.

Click to expand...

Do you happen to still have the gas engine for a 4030 John Deere? If so what year of a tractor was it in? Thanks Rob

Rob, welcome to YT! You either mistyped your reply or misread the post title. You say 4030, the post is titled 4020 and that is the engine he said he had. The early 4020 gas tractors used a 340 CID engine. The 1966 and later models used a 362 CID. The 4030 used a 303 that was only available in the 1973 models. I am not sure about the interchangeability of these engines. Lastly, the last post here by Todd1969 was in Sep. 2020.

4020 gas engine

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