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Old 09-19-2012, 01:32 PM   #1
burke_024
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Oil pressure question

So i need to know how to test oil psi ,i have a guage ,but it takes awhile to register,the ferrule coming from the head by the thermostat housing is bottlenecking the oil line but its still sending pressure i just wanna make sure my oil pump is in working order ,how do i testit,thnx


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Old 09-19-2012, 02:45 PM   #2
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It started at 85 psi this morning and went 60after warm and has benn slowly droppin all day,it also hold pressure after shut off ,i dont think thats normal .......
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Old 09-19-2012, 02:48 PM   #3
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And theeeen the very tip of my dip stick to the first hole broke off i dont know when ,.......what are the chances its still in my engine and not damaged anything,what do i use to seal the oil pan backup?,sorry formultiple posts
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Old 09-19-2012, 05:36 PM   #4
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The tip of your dipstick is probably just chillin' in the bottom of your oil pan. If it's like the svt you just use rtv for the gasket. That's what the factory uses.
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Old 09-19-2012, 08:39 PM   #5
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Sounds like you may have an issue with your oil line / gauge , when you shut the engine off the oil psi should drop to 0 with in 2-4 sec , when you start the engine you should see full oil psi in 2-3 sec and colder at about 85 +/- psi is about right and 50 +/- is about right for hot 180+ deg and 8-10 min driving

Rule of thumb on a DOHC engine is about 10-12 psi for every 1000 rpm is all thats needed so at 3000 and you have 30 - 60 your good , 6000-7000 and you have 60-70 your good , this will change some with oil temps , type and weight of oils , age / miles on engine

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Old 09-19-2012, 10:43 PM   #6
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Because I have a dry sump, I have studied oil pressure extensively on the zetec. At idle spec is 28psi (min 18 max 40 constant), and about 7.5 additional per 1000 rpm.

I got numbers directly from ford, and some from ford UK too. I also have docs that should performance of the stock pump as well as some with aftermarket pumps.
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Old 09-21-2012, 12:06 AM   #7
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Bad ferule on,the head connection everything is back to normal thnx guys
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