720

[BLT]

I have started looking for a 720D standard, gave up on the 620 standard. What to look out for? I am concerned about the flywheel crankshaft problems I have heard and read about. What exactly do I look for? Can the looseness be detected by the inexperienced eye? I have searched this forum but havent really found quite the answer I am looking for.

 

[Anonymous-0]

If you want a 720 diesel standard, I would consider looking for an electric start model, although they are much more rare with only 133 built. If its a pony start you want, you have to be sure that you are getting a good pony motor, they can cost around $3000 to rebuild correctly. If the pony engine doesnt run, the tractor should be priced accordingly. Yes they have had flywheel problems, which can be corrected with a new $800 taper lock flywheel. Diesels can be much more costly to work on, Maybe even a 720 gas or lp standard would be something to consider, at least with one of those, if it starts missing you have a spark plug to change. Just expect the diesel to cost more to repair. You should be able to find a good running 720 diesel between $3-$5000.

 

[BLT]

I am just wondering if an electric start model would be difficult if not impossible to start in winter?

 

[Anonymous-0]

The way I read it, BLT can't find a 620 standard and you are suggesting a 720 electric start standard for him???? I don't have the numbers on me right now but if you add the number of gas, electric start, and LP standards up, you should get about the number of 620 gases built.

BLT: A 720 diesel pony standard will work great for you no matter what he has to say.

 

[Mike M]

Shouldn't be too hard to find as I just saw one in the photo ads here at YT. A very mint 620 standard I think it was.

Why a standard ? just get a row crop. Plenty of them for sale here too.

 

[buickanddeere]

620 Standard, sweet. Nearly rare model compared to row crops compared to row crop 620's and 720's.
I was rather short sighted one day and traded my 620 standard off on a gas turbine powered generator.

 

[BLT]

Actually didnt know about the photo site. Thanks! Didnt see any 620 stanards though.

 

[Anonymous-0]

This goes to the gentleman by the name of "what?" I only suggested an electric start as it would be easier to work on, and yes they are more rare than a 620, but sometimes it only takes luck to find stuff. I have a 630 Lp standard 1 of 16, and a 630 All Fuel standard 1 of 14, and I cant find a 630 gas standard that they made 705 of. Sometimes its just luck, and money helps too.

 

[Anonymous-0]

I think everybody and their uncle knows that you own those tractors, how often do you need to post that and production numbers of them? I am happy the other 13 owners of the allfuel and 15 owners of the lp dont post about them; if they did it as often as you do, there would be no form space left.

You can't find a 630 gas standard, at the top left there is a link to photo ads, there is a 630 gas standard in there for sale. Maybe you should pull your head out of your........

 

[buickanddeere]

An electric 720 D will start in the winter. WITH a 24V starter, two group 31 batteries, good cables, a coolant and oil heater.
I've seen the 70D with the cranking engine start in sub zero weather.
Fill the starting engine gas tank. Wail the diesel over without compression or fuel until it makes oil pressure. Takes longer than you would think even with straight 20wt oil.
Engage compression and if the cranking engine is in good shape. It will crank the diesel while howling under protest. A dozen or so compression strokes for some heat. Add fuel and away she goes.
I just cringe when watching guys attempting slam starts. They rarely use the de-compressor, just have the fuel on. Wind the cranking engine to full revs and slam that cranking engine clutch lever back. Maybe the diesel will start after several tries.
I showed a couple of guys the operators manual starting section, neither had ever seen one. One started read the directions and I suspect the other fellow was illiterate.
They said *&^*( books, this is the way I start'em.

 

[gtx1967jewison]

they're the same guys that make all the loose flywheels & wasted pony motors on 1/2 the tractors left alive, the others they've completely destroyed!lol

 

[Michael Ranalla Jr]

Hi i have a JD 720LP standred. I was wondering if any one knows if you can turn off the LP and remove the tank?