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#12
03-11-2009, 05:05 AM
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Re: Low oil pressure in ZL-1
Is this a new ZL-1 Chevy block 053 casting? it does use a relief valve under the oil filter. Make sure is was installed and staked in the correct hole as there are 2 holes it fits in. If not there, could be your problem.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 differential, California car, PS, PB, PW, AC, Jetfire 2 option package. 
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#13
03-11-2009, 05:12 AM
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Re: Low oil pressure in ZL-1
[ QUOTE ]
Is this a new ZL-1 Chevy block 053 casting? it does use a relief valve under the oil filter. Make sure is was installed and staked in the correct hole as there are 2 holes it fits in. If not there, could be your problem. [/ QUOTE ] I dont remember puttng that in..do you have more info that I can use??
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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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#14
03-11-2009, 05:18 AM
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Re: Low oil pressure in ZL-1
Remove your oil filter and look at the block. There are 2 large (3/4"?) holes. 1 large hole should have a check valve in it or you will bleed pressure like crazy. The valve is availible thru Chevy Performance Parts-Scoggin Dickey knows what it is if you tell them its for ZL-1 block.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#15
03-11-2009, 05:21 AM
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Re: Low oil pressure in ZL-1
thats got to be it!!..never put one in!!!
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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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| The Following User Says Thank You to Alss For This Useful Post: | ||
DW31S (08-09-2019) | ||
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#16
03-11-2009, 05:29 AM
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Re: Low oil pressure in ZL-1
The relief valve part number is 25013759. This is the set-up on all ZL-1's. I would have to remove my oil filter to see which hole I put it in as I don't remember.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#17
03-11-2009, 05:33 AM
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Re: Low oil pressure in ZL-1
Check it, and if you don't have one in the block let us know.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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#18
03-11-2009, 05:50 AM
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Re: Low oil pressure in ZL-1
I know I did not put one in..Ill verify it in the AM and order that piece..many thanks!!
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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#19
03-11-2009, 06:33 AM
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Re: Low oil pressure in ZL-1
Wow, this is better than any soap opera or game show. It actually has a happy ending (crossing my fingers at the moment). Alss, update us as soon as you know.
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#20
03-11-2009, 07:24 AM
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Re: Low oil pressure in ZL-1
Sounds Like sound advise to me from 69ss ZL1... Lets check it out tomorrow.. Sounds like what is going on!!!! All the problems indicate the facts at hand... And lets go from there....
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Tubbed 69 camaro
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