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JD R pony motor

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Paul

06-15-2003 06:00:03




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when did john deere go from the pony motor to direct electric start, on the succesor to the R diesel? Also, what was the model #? I think it was the 830 or 820. Thanks




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Brandon

06-15-2003 19:15:07




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 Re: JD R pony motor in reply to Paul, 06-15-2003 06:00:03  
Both the other postings were wrong about what tractor got direct electric start.

The R was strictly a twin cylinder pony start. The R was replaced by the 80 which could only have a pony (V-4 this time). The model 820 replaced the 80, and was still only a pony start tractor (although there was some thought of making an electric start 820). Finally came the 830, which was avaliable with the V-4 pony, OR 24 volt direct electric start.

Hope this helps, and you may want to visit my website about the model 80 (with some family information) here

Brandon
My Industrial John Deere website
My JD model 80 website

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Dr.EVIL

06-16-2003 09:16:37




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 Re: Re: JD R pony motor in reply to Brandon, 06-15-2003 19:15:07  
The 70 diesel I think was the first with the V-4 pony correct? Was the Pony the same on ALL JD diesels? The R was the odd 2-cyl. diesel with only the 2-cyl. pony Plus it only had two main bearings. Broken crankshafts were not real common but they did happen on the R's.



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Brandon

06-16-2003 13:13:14




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 Re: Re: Re: JD R pony motor in reply to Dr.EVIL, 06-16-2003 09:16:37  
Yep, the 70 introduced the V-4 pony. The same engine was used on the 70D, 80, early 720D and 820. There was a later version with some improvements, but they will interchange as far as I know. The later pony was used on the late 720D-820 and on the 730D and 830.

Brandon



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Dr.EVIL

06-16-2003 15:06:46




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 Re: Re: Re: Re: JD R pony motor in reply to Brandon, 06-16-2003 13:13:14  
THANKS for the info. Guy that lives neighbors to My Brother-in-Law had a V-4 pony engine powering His go-cart as a Kid.



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Brandon

06-16-2003 18:13:25




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 Re: Re: Re: Re: Re: JD R pony motor in reply to Dr.EVIL, 06-16-2003 15:06:46  
I've heard of that being done. And a good reason why they are so expensive now-many tractors had their ponys taken out and used in go karts, little race cars, etc.

Brandon



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Brian in Ohio

06-15-2003 18:46:04




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 Re: JD R pony motor in reply to Paul, 06-15-2003 06:00:03  
Since I'm a Case collector, I had to swallow my pride and ask my JD collector friend for the answer to your question. He has an "R", and he says the successor to "R" was the 80, and from the 80, sprouted the 820 and 830. He says that all of the "R" tractors were built with strictly a pony motor, and when the 80 came out, you could get the direct electric starter as an option. He says that they did not do away with the pony motor altogether until the last couple of years of the 830.

Hope this helps!

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buickanddeere

06-17-2003 10:16:24




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 Re: Re: JD R pony motor in reply to Brian in Ohio, 06-15-2003 18:46:04  
The 830 and even the 840's built into 1961 could be had with either the v4 starting engine or the 24V electric for warm weather use or if a coolant and oil heater were used in cool/cold weather. No 80 or 820 left the factory with an electric start.



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BJ

06-15-2003 06:24:08




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 Re: JD R pony motor in reply to Paul, 06-15-2003 06:00:03  
I am thinking the later 820's were available with electric start and the 830's were divided about 50/50 on electric or pony



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buickanddeere.........NO

06-18-2003 09:01:58




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 Re: Re: JD R pony motor in reply to BJ, 06-15-2003 06:24:08  
The only 820 two cylinder you have ever seen with 12v or 24v electric start is because some tinkerer hacked up the tractor. Black dash production started at 8203100 with a beefier starting engine and the 75 HP main engine. ALL, that's everyone of the 820's that left the factory had a starting engine. No Industrial 820's either but yellow paint and very very late in production the HD front axle and grader tires could be ordered as an option.

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