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Harry Ferguson Tractors Discussion Forum
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Oil Pump - TEA20

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Boyde Colwell

06-18-2006 17:17:50




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Can someone describe for me how to replace the Oil Pump, in a TAE20 - 85 without tearing the engine down?

I am concerned with my oil pressure. It is around 50 PSI when cold then drops to less than 20 when warm. This concerns me.

People have told me not to worry, but I do. So if I can replace the oil pump without tearing the engine down, I will.

regards
Boyde




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John (UK)

06-19-2006 06:15:30




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 Re: Oil Pump - TEA20 in reply to Boyde Colwell, 06-18-2006 17:17:50  
You need to remove the oil pan to replace the Oil pump. The pressure you say you have is quite ok for that engine, you may be able to increase it slightly by adjusting the relief valve on top of the oil filter, only adjust it a couple of turns, no more. As Al says use a good quality oil of the correct grade for the conditions you are operating in, perhaps you could go to the next higher grade it it bothers you so much. It may not be the oil pump that is causing the pressure drop, it could be just wear on the crank bearings or even the camshaft bearings will do it. That engine should have SAE40 oil in normally, have you changed the oil filter recently as that will cause it to show a low reading. The oil should be changed every 240 hours and the filter every 480 hours. You can get the Sparex Rotor pack for the oil Pump from a
CEFS of Newcastle dealer.

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boyde Colwell

06-19-2006 14:35:26




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 Re: Oil Pump - TEA20 in reply to John (UK), 06-19-2006 06:15:30  
Thanks.

I did change the oil, using a good grade of SAE40 and I changed the filter, there was no change.

If i adjusted the pressure relief valve on the filter would I also be increasing the pressure when it is cold? By increasing the relief it would allow it to go higher than the 60psi when cold wouldn't it?

Regards
Boyde



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John (UK)

06-19-2006 15:22:23




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 Re: Oil Pump - TEA20 in reply to boyde Colwell, 06-19-2006 14:35:26  
That is true but once running the engine doesn't stay cold for very long and as you seem so concerned about the pressure what other option do you have if it does put it up slightly. You could also try using SAE50 that is acceptable unless it is very cold. Is the plate still in the oil filter that the element sits on and blocks the end of. If it isn't there it wont filter and the pressure is usually down slightly. Very often this plate gets thrown away with the old filter. I have seen some engines with the oil pressure running around 80/90 psi when cold, when warm they are back within tolerance.

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Boyde Colwell

06-19-2006 19:26:54




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 Re: Oil Pump - TEA20 in reply to John (UK), 06-19-2006 15:22:23  
When I changed the filter, the bottom plate was in place, I did not take it out. However, getting everything back on top of the filter element was not an easy task. Looking at some diagrams i see there is a felt washer. I do not remember putting one of those in. And I see a "C" spring that is suppose to hold things in place. I do not remember one of those.

Maybe my concern is valid and my filter is all messed up. My filter is of the inclinded type.

Any tips on where to get all the pieces, the felt washers, etc.

Regards
Boyde

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John (UK)

06-20-2006 06:19:22




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 Re: Oil Pump - TEA20 in reply to Boyde Colwell, 06-19-2006 19:26:54  
There are two versions of the inclined filter, one has the long bolt going from top to bottom and the later type runs from bottom to the top. Boyd, They are very similar in construction. You could try an M-F dealer as this engine was used in the MF35 and 135 as an 87mm version, but these parts are the same. If you have no luck there you could try a breakers yard for a complete filter assy. it doesn't matter which one you get as they both fit, you will just have to be aware that the filter you buy doesn't have parts missing as well. The only other place you may like to try is the Triumph Sports car club or a Triumph car dealer as the engine is similar and the filter is the same on some versions....John

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Al in BC

06-18-2006 21:03:55




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 Re: Oil Pump - TEA20 in reply to Boyde Colwell, 06-18-2006 17:17:50  
I concur with Alan from Australia. I am sure John in the UK will concur also. Use a good grade of oil.

Al in BC



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Allan S

06-18-2006 19:19:01




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 Re: Oil Pump - TEA20 in reply to Boyde Colwell, 06-18-2006 17:17:50  
Boyde,
I have a TED20 and have the same situation, 50PSI cold & below 20PSI when hot. I think others will confirm there is no problem here. Remember a pump does not create pressure only flow, resistance to the flow creates the pressure. So as the oil gets hot and thinner and internal clearance in the engine grow the oil pressure will drop.
Hope my 2 cents worth saves you some work,
Regards,
Allan
Australia

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