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low oil pressure help needed 

 

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 Post subject: low oil pressure help needed
Posted: Sat Oct 31, 2009 7:08 pm 
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running in my new engine but at anything below 1500rpm the oil light comes on and when i rev it, it goes out? anyone had this problem before? ef 6 cylinder

 

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 Post subject: Re: low oil pressure help needed
Posted: Sat Oct 31, 2009 9:40 pm 
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New oil pump? If it's an old pump it could be too large the clearances in the pump, or a problem with the releif valve. Standard pumps seem pretty reliable tho. One other thing it could be is improper clearance in main or big end bearings. Could be as simple as a faulty sender unit too. First get a pressure guage and see how well pump is working with that. No rattles etc when under 1500?
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 Post subject: Re: low oil pressure help needed
Posted: Sat Oct 31, 2009 9:49 pm 
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what oil did you put in it? and does it happen cold?

do you have real pressure gauge on it? or are you relying on the in dash stuff?

 

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 Post subject: Re: low oil pressure help needed
Posted: Sun Nov 01, 2009 12:07 am 
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replace the oil sender unit, and slap another earth strap on the block.

 

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 Post subject: Re: low oil pressure help needed
Posted: Sun Nov 01, 2009 10:12 am 
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check all those electrical things, the sender can also get a bit gunked up to. bit of carb clean on the end to fix.

next thing to start checking is the aux shaft

 

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 Post subject: Re: low oil pressure help needed
Posted: Sun Nov 01, 2009 11:45 am 
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na no rattles at all, yer its the old pump and i only have the standard oil light in the dash what pressure should it be at?

 

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 Post subject: Re: low oil pressure help needed
Posted: Sun Nov 01, 2009 3:30 pm 
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If you think you have oil pressure issues, check the pressure with a mechanical guage. You will get a pressure readout in PSI then any issues can be determined if you actually have any

 

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 Post subject: Re: low oil pressure help needed
Posted: Mon Nov 02, 2009 8:06 am 
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psi should sit on 25-50psi when warm and if it drops below 10psi, your pump is dead mate!!!

 

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 Post subject: Re: low oil pressure help needed
Posted: Mon Nov 02, 2009 8:21 am 
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Do as Krytox suggested and fit an extra bonding strap from engine to the chassis. EF/NF/DF have a history of poor electrical connections between negative battery terminal/engine block and negative battery terminal/chassis. First symptoms are usually low oil pressure indication and lower volts if you have the high series cluster.

 

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