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02-24-2008, 01:03 PM
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CC Member
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Join Date: May 2007
Location: Milton,
DE
Cobra Make, Engine: Everett-Morrison
Posts: 21
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Not Ranked
What is it now?
I have recently installed a new polished intake on my 460. I also changed the oil and installed a new braided oil line to the gauge. The engine was started a couple different times after completion and then shut down. Everything was fine. I start the engine to take the car home and let the engine run for a few minutes to warm up. Everything is fine. I start down the road and about a quarter mile away and I notice the oil pressure fall to zero. I immediately shut down the engine. This engine was custom built by a highly respected builder and only has 400 miles on it. Is there something clogging the oil line to the gauge. I hope. I hope nothing more serious. Any ideas? |
02-24-2008, 01:26 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,391
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Not Ranked
Sometimes you have to bleed the air out of the oil pressure lines. I always bump the starter and let oil come out of the line before I hook it up to the back of the gauge.
__________________
www.lykinsmotorsports.com
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02-24-2008, 01:38 PM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
Pressure is pressure--whether oil or air in the line it'll still indicate the pressure |
02-24-2008, 02:07 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,391
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Not Ranked
Awesome, that makes brake work a lot easier now. No bleeding brakes! 
Just playing...I know what you're saying, but I've had this trouble before. For some reason, after I cranked and cranked and saw no pressure, I pulled the line back off and cranked some more until oil came out of the line then put it back on. Voila.
__________________
www.lykinsmotorsports.com
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02-24-2008, 02:21 PM
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CC Member
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Join Date: Oct 2006
Location: Yorba Linda,
ca
Cobra Make, Engine:
Posts: 254
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Not Ranked
This is what would be going through my miniaturized, shriveled up brain:
Hmmm. Let's see now. It was working before I installed the new oil line and it's not working now. What has changed? Maybe the new line is pinched or crimped. Maybe it came undone and is spraying oil on the street - or worse yet, all over my engine compartment. Maybe the line or the gauge got some gunk in it - sealer, teflon tape. I better get started looking. Wonder where the tow truck went.
Just musing.
Brian |
02-24-2008, 02:57 PM
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Beam Me Up Scottie
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Join Date: Aug 2004
Location: Squantum (part of Quincy),
MA
Cobra Make, Engine: SPF1049 Titanium w/black stripes, 351W with Trick Flow Heads, Tremec 3550
Posts: 7,592
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Not Ranked
Is the gauge DOA?
__________________
Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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02-24-2008, 03:29 PM
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CC Member
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Join Date: Oct 2006
Location: Yorba Linda,
ca
Cobra Make, Engine:
Posts: 254
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Not Ranked
Warren,
I think he said "everything was fine" after he installed it and started the engine a few times.
B.
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02-24-2008, 05:32 PM
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Beam Me Up Scottie
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Join Date: Aug 2004
Location: Squantum (part of Quincy),
MA
Cobra Make, Engine: SPF1049 Titanium w/black stripes, 351W with Trick Flow Heads, Tremec 3550
Posts: 7,592
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Not Ranked
Quote:
Originally Posted by 496fe
Warren,
I think he said "everything was fine" after he installed it and started the engine a few times.
B.
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Well, if pressure is pressure, that means that pressure gauges never die?
__________________
Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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02-24-2008, 05:32 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,391
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Not Ranked
Oh, I didn't notice that point....I thought it didn't show oil pressure from the get-go.
__________________
www.lykinsmotorsports.com
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02-24-2008, 05:41 PM
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CC Member
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Join Date: Oct 2006
Location: Yorba Linda,
ca
Cobra Make, Engine:
Posts: 254
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Not Ranked
Uhmm, Warren... DOA, I think, means Dead On ARRIVAL. If I'm wrong (it happens more and more these days), please clear it up for me. 
Thanks,
Brian |
02-24-2008, 06:00 PM
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Beam Me Up Scottie
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Join Date: Aug 2004
Location: Squantum (part of Quincy),
MA
Cobra Make, Engine: SPF1049 Titanium w/black stripes, 351W with Trick Flow Heads, Tremec 3550
Posts: 7,592
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Not Ranked
Quote:
Originally Posted by 496fe
Uhmm, Warren... DOA, I think, means Dead On ARRIVAL. If I'm wrong (it happens more and more these days), please clear it up for me.
Thanks,
Brian |
DEAD, as in kaput. Maybe DOA was not the best term to use. Do you have another pressure gauge that you can hook up? Maybe you DO have oil pressure.
Of course, it could be that the oil pump just crapped out. Check the cheap and easy stuff first .... and that is the gauge.
__________________
Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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02-24-2008, 07:49 PM
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CC Member
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Join Date: Nov 2000
Location: Flower Mound, TX,
tx
Cobra Make, Engine: Lonestar LS 427, Keith Craft 501,Toploader
Posts: 883
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Not Ranked
Go to the auto parts house and buy a cheap oil pressure gauge and hook that up and see if you have pressure then. Then, if that's not working, I would remove a valve cover, start the engine and look for oil pumping out.
__________________
" It ain't no big deal" 
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02-24-2008, 08:15 PM
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Beam Me Up Scottie
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Join Date: Aug 2004
Location: Squantum (part of Quincy),
MA
Cobra Make, Engine: SPF1049 Titanium w/black stripes, 351W with Trick Flow Heads, Tremec 3550
Posts: 7,592
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Not Ranked
Quote:
Originally Posted by Tim Brewer
Then, if that's not working, I would remove a valve cover, start the engine and look for oil pumping out.
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START the engine? ....NOOOOOOOOOOOOOOOOOOOOOOOOOOO
Remove the coil wire and crank it over to see if oil is circulating. Does the pressure increase on the new gauge installed?
NEVER start an engine when the oil presuure gauge says ZERO.
__________________
Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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