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0 oil pressure... NEED HELP FAST!!!!

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Old Jan 10, 2013 | 05:17 PM
  #21  
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Originally Posted by scoutsniper
What do you mean oil is coming out? Like pull the filter and turn it over and see if it squirts (haha)
No the sending unit lol

X2 on checking the oil for flakes
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Old Jan 10, 2013 | 05:32 PM
  #22  
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Replaced the filter. No flakes that I could see.
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Old Jan 10, 2013 | 05:35 PM
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Did you cut it open?
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Old Jan 10, 2013 | 05:52 PM
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It's best to puncture a hole with a (sharp) punch and then cut it with metal sheers. Most of anything else will create metal flakes and sediment when cutting open the filter.
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Old Jan 10, 2013 | 06:01 PM
  #25  
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Originally Posted by FEAR LS
It's best to puncture a hole with a (sharp) punch and then cut it with metal sheers. Most of anything else will create metal flakes and sediment when cutting open the filter.
exactly x2
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Old Jan 10, 2013 | 06:07 PM
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Install a mechanical gauge first to verify that there is a problem. If that doesn't read good numbers, I would then cut the filter open and check for bearing shavings.
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Old Jan 10, 2013 | 07:43 PM
  #27  
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Well can't cut the filter open now its already in the trash at the shop.
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Old Jan 12, 2013 | 03:43 PM
  #28  
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The problem with 0 oil pressure for any length of time is there will almost always be rod bearings that are shot ,,,,,,,,,,,,could be o-ring , pressure relief piston/spring stuck or there's even a possibility that the pick up screen inlet is too close to the bottom of the pan ,,,,,,,although not real likely,,,,,,,good luck
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Old Jan 12, 2013 | 07:29 PM
  #29  
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Like mentioned...Doesn't the signal go from the sensor to the ECM and to the gauge?

Like others said, put a independent stand alone gauge on it. You need to verify you actually have zero pressure.

I don't see it being an O-ring issue or bearings. If the O-ring is pinched from the get go, low pressure would indicate so from the get go. The bearings too...have you ever seen straight up ZERO pressure from a bearing issue? Usually just very low.
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Old Jan 12, 2013 | 07:32 PM
  #30  
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Originally Posted by badazz81z28
Like mentioned...Doesn't the signal go from the sensor to the ECM and to the gauge?

Like others said, put a independent stand alone gauge on it. You need to verify you actually have zero pressure.

I don't see it being an O-ring issue or bearings. If the O-ring is pinched from the get go, low pressure would indicate so from the get go. The bearings too...have you ever seen straight up ZERO pressure from a bearing issue? Usually just very low.
I've seen very worn bottom ends carry no measurable pressure at idle and barely more than 10 when wide open. Amazingly they held together. One took an open n2o hose into the air box to pop.

There's a difference between no pressure and no volume. No volume will kill a motor in short order. No pressure but getting adequate volume and it should live.

OP, get a mechanical gauge on it before you do anything more. You can get em at the parts store for cheap. Run it between the hood & cowl and you'll be able to watch it going down the road w/o cutting holes to route it inside since it's purely temporary.
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Old Jan 13, 2013 | 11:53 AM
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Originally Posted by 02SOMSS
I've seen very worn bottom ends carry no measurable pressure at idle and barely more than 10 when wide open. Amazingly they held together. One took an open n2o hose into the air box to pop.

There's a difference between no pressure and no volume. No volume will kill a motor in short order. No pressure but getting adequate volume and it should live.

OP, get a mechanical gauge on it before you do anything more. You can get em at the parts store for cheap. Run it between the hood & cowl and you'll be able to watch it going down the road w/o cutting holes to route it inside since it's purely temporary.
I see what your saying, but Zero Pressure = Zero Volume

Any updates OP?
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Old Jan 13, 2013 | 12:11 PM
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so...everything was put back together...great oil pressure...you replaced the OPSU at this time...then pulled the intake for new gaskets....then put the intake back on? so all your oil pressure problems started happening after you replaced the INTAKE? right by the NEW OPSU?

guess im unsure of what/how you did this, but to me it sounds like you may have messed up that opsu....or maybe your new opsu is a pos...

like others said, get a mechanical guage on there and verify it isnt the opsu or your gauge.
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Old Jan 13, 2013 | 12:18 PM
  #33  
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Mechanical gauge to verify pressure. Never trust a stock gauge.
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Old Jan 13, 2013 | 01:34 PM
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OP found paper somewhere in the engine. It will more than likely need a rebuild after being ran and rev'd up with no pressure repeatedly.
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Old Jan 13, 2013 | 01:51 PM
  #35  
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damn, that sucks. tough lesson to learn - keeping your rebuild area clean.
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Old Jan 13, 2013 | 07:17 PM
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Originally Posted by MUSTANGBRKR02
OP found paper somewhere in the engine. It will more than likely need a rebuild after being ran and rev'd up with no pressure repeatedly.
paper? Like Paper towel?
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