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#41
03-12-2009, 07:47 AM
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Re: Low oil pressure in ZL-1
Fact...Low Pressure is generally caused by lack of volume! Water will cause no change in volume. Air will cause fluctuaction in volume due to molicule dispersement. Correct me if I am Wrong..
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#42
03-12-2009, 07:53 AM
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Re: Low oil pressure in ZL-1
WOW.... There are SOME really good tech guys on here My hats off to you all!!!!!
__________________
Tubbed 69 camaro
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#43
03-12-2009, 08:10 AM
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Re: Low oil pressure in ZL-1
Water is generally thinner than oil and will show lower pressure I believe. Example is run a engine on 30 wt oil and note the pressure and then try water and I bet the pressure is much lower.
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#44
03-12-2009, 09:30 PM
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Re: Low oil pressure in ZL-1
OK, got the valve but which hole does it go into??.,as stated it can go in either hole but one has a shoulder and one doesnt..anyone???...help?????
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1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1
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#46
03-12-2009, 10:18 PM
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Re: Low oil pressure in ZL-1
Al, according to what i have read. It goes in the hole closest to the block,or right behind the oil filter thread rod if you are running an oil cooler. So makes me believe the other hole if not running a oil cooler. I would contact your GM dealer or a GM TECH for a concrete answer. Roger
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67 Z28, 67 RS/SS 396 Canadian, 73 Camaro Z28/LT Carolina Blue
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#47
03-12-2009, 10:45 PM
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Re: Low oil pressure in ZL-1
[ QUOTE ]
Al, according to what i have read. It goes in the hole closest to the block,or right behind the oil filter thread rod if you are running an oil cooler. So makes me believe the other hole if not running a oil cooler. I would contact your GM dealer or a GM TECH for a concrete answer. Roger [/ QUOTE ] Roger thats right..finally got a concrete answer from someone in the know..tech line gave me the wrong answer!!  ..getting a second pressure reg tomorrow and will try again.  ALber
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1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1
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#48
03-12-2009, 11:32 PM
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Re: Low oil pressure in ZL-1
Alss, I removed my oil filter and it is the hole furthest from the block (the shallowest one to the step inside the hole). The one that is on the outside rail of the filter boss. Here is a photo of mine. You have to drive it in with a socket and take a chisel and put a small stake to secure it. [image]
 [/image]
__________________
1968 Z/28 34,000 mile, born with engine and trans, Shipper, California car, Fathom Blue, deluxe interior, M21, 3.55 Posi 1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#49
03-12-2009, 11:40 PM
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Re: Low oil pressure in ZL-1
[ QUOTE ]
Alss, I removed my oil filter and it is the hole furthest from the block (the shallowest one to the step inside the hole). The one that is on the outside rail of the filter boss. Here is a photo of mine. You have to drive it in with a socket and take a chisel and put a small stake to secure it. [image] [/image] [/ QUOTE ] Thats where I put it..still no difference..20-25psi at best cold..guess its coming out after all ..hope it aint hurt ..thanks to everyone for there help..especially 69SSZL1 for removing his oil filter ..messy job ..I've done it 3 times today! and TXSS for phone support Ill keep everyone posted as to the problem.ALbert
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1969 9566AA COPO Chevelle M-22 1969 Malibu 489 ZL-1 T-56/4.56 1969 Beaumont 540 th400 3.70 1969 Chevelle 300 Deluxe 427 ZL-1 M 22W 1970 Olds 442 W 30 2 door post 1969 Ply. GTX 426 hemi auto. Blue. 1940 Dodge pick up Durango 4X4 1968 Camaro ragtop LSA ZL1
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#50
03-12-2009, 11:48 PM
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Re: Low oil pressure in ZL-1
OK... what about the 3 small (1/8") pipe plugs that go in the lifter valley?
__________________
1968 Z/28 34,000 mile, born with engine and trans, Shipper, California car, Fathom Blue, deluxe interior, M21, 3.55 Posi 1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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