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Re: SWD9 oil guage
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Posted by Bob M on August 31, 2006 at 07:04:27 from (151.190.254.108):
In Reply to: SWD9 oil guage posted by markloff on August 31, 2006 at 06:45:11:
Mark - I'm not sure which gage is "correct". I've seen both 0-75 psi and 3-zone gages on restored SWD9 tractors. Anyway the high reading on yours is likely from a tired gage. As gage bourdon tubes get old they sometimes weaken and lose some of their "spring". This causes a pressure indication higher than actual. (However high oil pressure could also be from an inoperative pressure regulating valve in the oil pump or other problem in the engine lube system.) Suggest before doing anything else buy yourself a cheap 0-80 or 0-100 psi gage at Autozone, TISCO or wherever. Install it temporarily to find out the actual oil pressure you engine is currently running. With luck you may find simple gage replacement will solve your problem!
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