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Posted by: toon1 May 19 2008, 05:58 PM

At first startup, I wil have 65psi. if i just tool around town, the pressure will stay in the 10 to 15psi range at idle. Normal pressure when warm and at ~1500-2500rpm is 45-48.

after a freeway drive, and the car comes back to idle, the pressure drops to 0.

I've installed a NEW RAT 30mm NON full flow oil pump with .005 clearance on the front cover.

Oil is BP 20/50w

CHT are in the 350-360 range

oil pressure gauge is a dakota digital.

I have a stock oil temp gauge and I have never seen it go much past the middle towards the hot side.

All the clearances on the rebuild where at STD.

Oil bypass springs where installed the right way.

Any suggestions would be helpful.

Thank's,Keith

Posted by: Travis Neff May 19 2008, 06:19 PM

does the green idiot light come on as well?

Posted by: r_towle May 19 2008, 06:22 PM

why are you running 20W/50?

Rich

Posted by: Rand May 19 2008, 06:27 PM

QUOTE(r_towle @ May 19 2008, 05:22 PM)

why are you running 20W/50?

Why not? That's pretty common in TIVs, right? I know a lot of people run it, myself included.

Not being argumentative, just curious.

Posted by: r_towle May 19 2008, 06:31 PM

its a bit thick...my car would never start in the winter...lol

Rich

Posted by: Rand May 19 2008, 06:33 PM

I thought multi-viscosity oil was supposed to lean toward the thinner number when cold?

Posted by: Jake Raby May 19 2008, 06:34 PM

You really need to verify the oil pressure readings with a mechanical gauge. The DD gauges use VDO senders and they have been giving mis-readings as of lately.
If you do indeed have low oil pressure with the mechanical gauge the issue must be internal clearance related.

Posted by: toon1 May 19 2008, 08:11 PM

QUOTE(r_towle @ May 19 2008, 05:22 PM)

why are you running 20W/50?

Rich

QUOTE(Jake Raby @ May 19 2008, 05:34 PM)

You really need to verify the oil pressure readings with a mechanical gauge. The DD gauges use VDO senders and they have been giving mis-readings as of lately.
If you do indeed have low oil pressure with the mechanical gauge the issue must be internal clearance related.

I'm in Cali, Also, 20/50 is what Jake recomends.

Jake, how are the DD gauges giving a false readings?

I will give a mech. gauge a try.It will be tough to install but if it's going to verify weather another tear down is needed it's worth a shot.

Posted by: Crazyhippy May 19 2008, 08:11 PM

Overfilled and aeration?

agreed check w/ another guage... 0PSI makes nice motors into expensive paperweights.

Posted by: Jake Raby May 19 2008, 08:22 PM

Its not the gauges, its the VDO senders they use that are BS made in China crap!

Posted by: toon1 May 19 2008, 10:35 PM

QUOTE(Jake Raby @ May 19 2008, 07:22 PM)