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Old 06-18-2008, 08:12 PM
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low oil presure problem

hi everybody Ive got problem with my ford 300-6 sometimes when it gets hot and i shut engine off to go into the store and fire it back up it has no or little oil pressure any thoughts im sure its probably the oil pump oh yeahis 130 pounds of compression good for this motor

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Last edited by 1969f-100; 06-18-2008 at 08:26 PM.
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Old 06-18-2008, 08:47 PM
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check oil preassure with a mech gauge? does it sound like it has no preassure? 130 is fine for a 300
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Old 06-18-2008, 09:20 PM
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oh yeah you can hear the liffters taping (even worse)
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Old 06-19-2008, 06:49 AM
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What oil filter? Anything other than napa ,wix or motorcraft can cause problems.Fram or its offshoots will kill oil pressure on a 300 as the bypass is in the filter.Filter clogs no pressure.If a good filter does not cure it it is time to pull the pan you will probably find the pickup clogged or cracked, common on these.
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Old 06-19-2008, 07:41 AM
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I here that to about fram filters. 130 pounds is good for that engine.
Has the oil pan rusted out and then brazed with it on the engine? The reason I ask is caues I had a I 300 come into the shop were the owner had his oil pan brazed on the engine and all the little debris had found its way to the mains and gouged his cylinder walls . He came in with low oil psi.

Its not hard to do a pan on those engines and you have to take the oil pump off anyways. Got it down to one hour replaced in pick ups and 1 1/2 in vans.

I would put an actual gauge on it to see you psi.
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Old 06-19-2008, 08:55 AM
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Those Ford screens love to plug up.
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Old 06-19-2008, 08:42 PM
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i forgot one thing we put an oil pan gasket in it almost a year ago the screen was clean but we found the oil pan baffle beat up and sitting in the bottom so we pulled it out
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Old 06-23-2008, 09:09 PM
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my oil filter

i only use napa filters (the boss don't notice one missing)
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Old 06-23-2008, 09:44 PM
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"(the boss don't notice one missing)"

Mend your ways son, you're messin' with your karma.

If the motor rattles on startup, it's the bearings that have gone south and are contributing to the low oil pressure. Been there, done that with my 300-6.
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Old 06-23-2008, 11:09 PM
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Yikes!

Quote:
Originally Posted by 1969f-100
i only use napa filters (the boss don't notice one missing)
If your boss does any inventory control, believe me... he knows what's missing.

By what is missing, he might even wonder which one of his employees has a car that the missing stuff fits on.
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Old 06-24-2008, 12:58 AM
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Between DENCOUCH and I, we have 127 years of experience on this rock. You have 17. Figure it out.
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Old 06-24-2008, 05:17 AM
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NAPA filters are made by Wix. They are good filters so are the motor craft brand.
Use a filter from a 2002 dodge durango its just an inch shorter.. I use a filter for a ford v8 on my Durango. Same tread and o-ring.

Go to "oilfilterstudy.com".
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Old 06-30-2008, 09:35 PM
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i was wondering if the the hi temperatures that the motor was running in would effect the oil pressure
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