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Harry Ferguson Tractors Discussion Forum
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TEA20 Engine oil

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Darren Patrick

09-26-2007 12:45:40




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I went to do an oil change and found that the tractor had been running for years without an oil filter. I purchased a filter and installed it with new Esso hdx-30 oil. Now it takes much longer for the oil psi to come up to 50. Longer than I'm comfortable with and it's not even cold yet. This may be why there was no filter used. It might be too much restriction. What should I do? Take the filter out or can I run a lighter wt oil like 15w40. What about a synthetic oil (15-40 Amzoil

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John (UK)

09-26-2007 13:14:16




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 Re: TEA20 Engine oil in reply to Darren Patrick, 09-26-2007 12:45:40  
The engine oil should be 40 grade if the air temp is 90F or over./ SAE30 if it is 32 to 90F/SAE20 if it is 10 to 32F/ SAE10 if it is -10 to 10F. It should be changed every 120 hours and the filter at every other oil change. The oil filter shouldn't really have any effect on the speed of the pressure building up, it will most likely be the Oil Pump Rotor Pack that needs changing, the gears will be worn and not allowing the pressure to build up. Low oil pressure can also be due to worn Camshaft Bearings, especially the Rear one. The Oil Filter should have a flat plate under the filter element to seal off the end of the element so the oil passes through it. Very often this plate is thrown away when they remove the dirty filter and then the oil is not filtered at all. If the filter was blocked it would allow the oil to flow through the Relief Valve so that you would not lose oil pressure. You can get a Rotor Pack from Sparex as part number S42863 Shaft and Rotor assy. the oil pan gasket is S41726. If you need the details of the oil filter assy. email me and I will send it, tell me what your engine number is though, this is on the block between the oil filler and the Coil. If you need the instruction Book for this tractor that gives all this info, just email me and ask...John

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Darren Patrick

09-27-2007 08:51:51




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 Re: TEA20 Engine oil in reply to John (UK), 09-26-2007 13:14:16  
Thanks John, I will save this for reference. The oil psi came up a lot faster when the oil filter was removed. There was still a bit of delay but it came up to around 50 and stayed there. Now with the filter on the motor actually starts to knock before the psi comes up. I will save your email though incase I need to ask you a question in future. Thanks again!



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John (UK)

09-27-2007 09:27:19




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 Re: TEA20 Engine oil in reply to Darren Patrick, 09-27-2007 08:51:51  
You say that your engine starts to knock before the oil pressure comes up but it is ok without the filter in the bowl, to me it looks as though it is not the correct filter from your description. If you carry on using that filter there is a danger of damaging the bearings in the engine. OR does this happen only the first time you start it after you have fitted the new filter and it is ok after that and doesn't knock when it starts up from cold? Correct filters for your engine are available from YTMAG at this site:-
http://www.ytmag.com/cgi-bin/store/model_parts.cgi?SearchArea=FE&&md=TEA20&cat=Oil%20System&r=mcats

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