[AT] jd 70 diesel tractor

David Rotigel rotigel at me.com
Fri Apr 25 18:38:48 PDT 2014 

I'm surprised that no one has suggested checking the fluids in the transmission/differential to see if it's OVER full.
	Dave

On Apr 25, 2014, at 9:20 PM, Dean VP <deanvp at att.net> wrote:

> Ok, I found an original I & T Manual JD-8, dated 1956, $2.50 for the 70
> Diesel.   Crankcase holds 12 quarts.  Need to understand better what the 5
> quarts is all about! Remember this is a diesel so it will burn oil pretty
> efficiently when mixed with diesel fuel. . 
> 
> Dean VP
> Snohomish, WA 98290
> 
> “ . . . The tree of liberty must be refreshed from time to time with the
> blood of patriots and tyrants. It is it's natural manure . . . “ Jefferson
> 
> 
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of joehardy at epix.net
> Sent: Friday, April 25, 2014 5:37 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] jd 70 diesel tractor
> 
> Greg, It is probably sucking the oil up past the rings and burning it in the
> combustion chamber.  I owned an early VW Rabbit diesel and when the rings
> became worn, the engine would begin to run away with its self without
> stepping in the throttle because the engine was running on crankcase oil. 
> My car manual said that if you experienced that condition when in neutral,
> get away from the car because the engine  would crank up so fast that it
> would blow itself apart. I believe you need the take the engine apart.  Keep
> us informed as to what you find....Joe Hardisky, Ryman Farm Dallas, PA On
> Friday, April 25, 2014 7:44 PM, Dean VP <deanvp at att.net> wrote:
> 
> I am unable to put my hands on a JD 70 Diesel Operators Manual at the moment
>> but a 720 Diesel takes 9 quarts of oil in the crankcase. I would 
>> suspect the
>> 70 Diesel to be very similar if not identical.  So the 5 quarts 
>> mentioned trouble me.  The way the Two Cylinder Engine is designed with 
>> the oil pump in the very bottom of the crankcase, I find it strange 
>> that the oil pressure goes to zero if there is still 4 quarts of oil in 
>> the engine. Sum ting wong here.  I suppose it is possible that the fuel 
>> pump is sucking oil out of the crankcase and feeding it to the engine.  
>> OR  one or both piston's oil rings are broken or stuck  Or a valve 
>> guide is broken or something. But to suck up that much crankcase oil in
> such a short time it has to be something major.
>> 
>> Dean VP
>> Snohomish, WA 98290
>> 
>> " . . . The tree of liberty must be refreshed from time to time with 
>> the blood of patriots and tyrants. It is it's natural manure . . . " 
>> Jefferson
>> 
>> 
>> -----Original Message-----
>> From: at-bounces at lists.antique-tractor.com
>> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Dean VP
>> Sent: Friday, April 25, 2014 3:35 PM
>> To: Antique tractor email discussion group
>> Subject: Re: [AT] jd 70 diesel tractor
>> 
>> I need to look at a 70 D manual but 5 quarts of oil doesn't sound 
>> anywhere close to enough oil to go from completely empty to full in the 
>> main engine crankcase.  It sounds like the oil is is being burned in 
>> the combustion chamber. But I would think it would be smoking badly. 
>> Where are you checking the oil level?
>> 
>> Connected by DROID on Verizon Wireless
>> 
>> -----Original message-----
>> From: Tyler Juranek <tylerpolkaman at gmail.com>
>> To: Antique tractor email discussion group 
>> <at at lists.antique-tractor.com>
>> Sent: Fri, Apr 25, 2014 22:17:18 GMT+00:00
>> Subject: Re: [AT] jd 70 diesel tractor
>> 
>> Greg,
>> Even if it was sold as is, and the dealer says he stands behind what he 
>> sells, I'd call the dealer.
>> Did the oil go on the floor?
>> I wonder if the tractor is out of time?
>> Did the guy put new wires or anything in the distributer?
>> Good luck!
>> 
>> On 4/25/14, Greg Hass <ghass at m3isp.com> wrote:
>>> Yesterday my brother bought a John Deere 70 diesel tractor with pony 
>>> start. He drove it home the 4 miles while I followed. When I drove up 
>>> he was putting it in the shed. It didn't quite sound right to me but 
>>> I thought it might be the different sound caused by being under the roof.
>>> Then he said that most of the trip it didn't have any oil pressure 
>>> but he thought the gauges didn't work. I said that that type of gauge 
>>> almost never gave trouble; copper tube to the gauge, not electrical.
>>> We checked the oil level and it appeared empty; not good. We put in 5 
>>> or so quarts to the full mark and restarted the engine. The oil 
>>> pressure rose right to the top but soon started to drop and within 
>>> less than 2 minutes was back to zero.  We shut it off and checked the 
>>> oil again; it was completely empty with no sign of where it went. I 
>>> thought maybe we should try more oil again, but by this time my 
>>> brother wanted nothing to do with it. He did call a guy in the 2 
>>> cylinder club who is considered to be knowledgeable and all he could 
>>> think of was a cracked block; however there appears to be no oil in 
>>> the
>> water or water in the oil.
>>> What puzzles me is where could 5 quarts of oil go to in less than 2 
>>> minutes? Also, it sounds like it is not firing on both cylinders and 
>>> has another funny sound like a leaking valve. Over two days when he 
>>> was looking at it they started it at least 6 times and drove it back 
>>> and forth and it ran perfect. The reason for starting it so much was 
>>> that earlier a young guy who said he knew all about these tractors 
>>> had tried to start it without the dealer present. Well, he turned the 
>>> dash mounted fuel valve the wrong way and turned it so tight that 
>>> when he went to turn it back it twisted off the valve.  In the 
>>> process of fixing the valve some dirt must have gotten in and the 
>>> pony motor wasn't getting enough gas to run right. After getting the 
>>> gas problem fixed they started the tractor several times to make sure 
>>> it was alright. As I said, at that time it started and ran perfect. 
>>> It has good paint, good tires,wide front,power steering but no 3 pt. 
>>> The person that traded it said on the phone the the only thing wrong 
>>> when traded was a small leak in a steel hydraulic line, which we had 
>>> already noticed. The dealer said he always stands behind what he 
>>> sells, but he did put "as is" on the bill so we wouldn't go there at 
>>> this time. It seemed like a good tractor, but with this problem it's
>> worthless. Any ideas from the list?
>>>                                 Greg Hass
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
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>> 
>> 
>> --
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