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Farmall & IHC Tractors Discussion Forum
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HIGH OIL PRESSURE

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DAVID WORDEN

02-10-2007 01:27:52




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I HAVE JUST REBUILT MY TEA20 NEW CRANK, PISTONS, LINERS, BEARINGS ETC RUNS OK BUT HAS HIGH OIL PRESSURE 80+ TRYED ANOTHER GUAGE SAME IS THIS A PROBLEM




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El Toro

02-10-2007 06:58:05




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 Re: HIGH OIL PRESSURE in reply to DAVID WORDEN, 02-10-2007 01:27:52  
Was there much sludge in the engine? This could cause a restriction in the oil passages as Matt described. You should have from .001" to .0015"
clearances on your bearings. You may need to plastigage them. Do you know what the pressure
was before the engine rebuild? Hal



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MattofVinings

02-10-2007 05:34:01




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 Re: HIGH OIL PRESSURE in reply to DAVID WORDEN, 02-10-2007 01:27:52  
Likely yes. It basically means there's a significant point of restriction. Two forms of that either a blockage in the oil system somewhere, probably in the main line, or else the bearing clearances are so tight the oil cannot "leak" out around them. The first one is bad because the engine is starving for flow. The second one is bad because the engine is also starving for flow, which can lead to a seized and spun bearing.

The last possibility is that there's something wrong with the oil pressure relief...that's the simplest to fix, usually, and where I'd start.

However, IMHO it is worthwhile after spending time and money on this to "get it right" otherwise you may end up doing it again...

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