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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

JD350 oil pressure

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PhilMac

08-18-2004 14:18:18




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I have a JD350 and when started cold, the oil pressure is 60+. After it warms up the pressure drops to around 20.

What is the problem?

Thanks




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Roy

08-21-2004 22:05:41




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 Re: JD350 oil pressure in reply to PhilMac, 08-18-2004 14:18:18  
Are you using multi-grade oil ?? I 've run into a problem with some multi-grade oils breaking down causing low oil presure at warm-up.. Try switching to straight weight SAE 30. It might surprise you



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PD Mechanical

08-20-2004 05:35:34




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 Re: JD350 oil pressure in reply to PhilMac, 08-18-2004 14:18:18  
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If its 20lbs. at idle, probably nothing. When oil warms you will lose some pressure. Should be around 40lbs. +/- at operating speed when warm. If not then you may have some worn brgs. Probably mains.

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