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Harry Ferguson Tractors Discussion Forum
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What to do next TEA20 1951?

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Aikidoforever

02-06-2006 10:14:31




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Hello again everyone,

I'm searching for the reason why my 3 point hitch is slow coming up. I've had lots of help from John (UK) but currently he is on vacation and hasn't replied to my personal emails yet. No problem John, you should be enjoying your vacation and not worrying about me anyways...
So to continue... I've got my top cover off and my hydraulic pump out and ready for inspection. I've got my diesel fuel and will clean the entire hydraulics area including the pump as well as the piston on the top cover. I will take out my PTO assembly as well, cause I just took the cap off and saw some oil sitting in there.

TO CONTINUE...

First, are there any components that shouldn't have contact with diesel fuel as I'm cleaning?

Second, what should I be doing to both the piston/fork assembly as well as the hydraulic pump in order to inspect and determine if there are any problems? I have a feeling that my piston is fine (no apparent seal leaks, implement always stays up for a very long time after turning tractor engine off) but something might be wrong with my pump. Can I have the pump tested?

Also, while I've got this part of the tractor a part, anything I should just simply replace as good measure? I will be ordering new gaskets for the covers that I've removed. AND, since my oil is drained I will also be removing the right axle assembly as well to fix a leak from the bolt that holds the right lower link arm to the right axle trumpet. But I won't ask for help about that until I've started that project! LOL

Any tips, input or ideas would be great!

Thanks to all that help!

Ivan

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Parker39

02-06-2006 18:45:23




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 Re: What to do next TEA20 1951? in reply to Aikidoforever, 02-06-2006 10:14:31  
The oscilator keeps the control valve from sticking and yes it needs to be connected to the control valve. It sounds like you have a TO-30 or later pump.I reconnect the control valve to the forks with a long pair of needle nose pliers through the large drain plug hole while someone else spreads the forks apart. Good luck !



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TN_Glen

02-06-2006 16:46:01




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 Re: What to do next TEA20 1951? in reply to Aikidoforever, 02-06-2006 10:14:31  
Ivan
I have noticed on these boards and from experience from my work on my TO-35 that alot has to do with the ser. num. of the tractor. Apparently massey changed things on the same model as he made them. So things may be a little diffrent on later ser.numbers than on ealier ones. It"s just a guess but if you have a late model TEA20 it may have somethings that the ealier ones do not. You may want to find a parts manual not just a shop manual.Good luck on the overhaul.
Glen

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Aikidoforever

02-06-2006 15:01:16




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 Re: What to do next TEA20 1951? in reply to Aikidoforever, 02-06-2006 10:14:31  
Just to update you all:
When I tried to lower the hydraulic pump down from it's frame, the "plate" (what the pump is bolted onto and what bolts up to the frame) was stuck at the front and was free at the back. I mean front indicating the plate pointing towards the front of the tractor. Something was preventing it from dropping freely, but I managed to wiggle it out. Once I inspected it I noticed that there was a square pin conected to a thick wire hanging out the front (pointing towards the front of the tractor) of the pump. The wire was now bent because this is what prevented the pump from dropping easily. This item was in the same shaft that goes front to back on the pump and has, on the opposite side (or the back side) the control valve. I did some research and realized that this square pin is suppose to connects, via the thick wire, to the control valve. I believe it's name is the oscillator drive. Anyways, these two pieces were not conected. I find it sort of confusing that my I&T Shop Manual has two pictures of hydraulic pumps, one that has the Control Valve & Oscillator drive and one that has simply the control valve. The manual states that the TE20 doesn't have the "Oscillator Drive" only the control valve. The manual states that only the TO30 had this unit. I'm wondering if the TEA20 had the upgraded hydraulic pumps with the control valve & oscillator drive like the TO30s. So, the question remains, if these two parts were not connected, as they are suppose to be, would this make my 3 point hitch slow to rise when under load? What does the Oscillator drive do anyways?

Thanks all,

Ivan

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teadave

02-06-2006 18:28:52




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 Re: What to do next TEA20 1951? in reply to Aikidoforever, 02-06-2006 15:01:16  
as far as i know all tea20"s had the oscillator on them. i know my "51 tea does. its purpose is to prevent the valve from sticking.
the diesel can touch all parts inside.

teadave



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Jim W

02-07-2006 09:20:38




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 Re: What to do next TEA20 1951? in reply to teadave, 02-06-2006 18:28:52  
The oscillator wiggles the control valve (rotates it a little back and forth) so that it won't tend to stick in one spot. If the oscillator is not connected, it is indeed possible that the control valve will occassionally fail to go all the way in (or out, I forget which).
The oscillator was implemented within the run of TEA tractors at serial number 134,001 (seee link).
Jim

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Jesper Bering (Denmark)

03-13-2006 10:34:58




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 Re: What to do next TEA20 1951? in reply to Jim W, 02-07-2006 09:20:38  
Hello Jim W,

Hope you read this. In December 2002, you commented on similarities between the Standard engine in TEA-20 and the Standard engine in the Triumph Sports car. I would like your comment to the possibility of fitting a Triumph cylinder head to a TEA-20, together with manifold, carburettors, etc. Do you think this will be possible without major construction work?

Regards, Jesper



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