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..

Re: Low oil pressure in ZL-1
 

WOW.... There are SOME really good tech guys on here My hats off to you all!!!!!

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.

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?????

Re: Low oil pressure in ZL-1
 

Al, I think some people are hesitant to help for fear they will be trivialized. Pms work best.

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

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!! https://www.yenko.net/ubbthreads/imag...lins/dunno.gif..getting a second pressure reg tomorrow and will try again. https://www.yenko.net/ubbthreads/images/graemlins/no.gif

ALber

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]http://i145.photobucket.com/albums/r...eliefvalve.jpg[/image]

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]http://i145.photobucket.com/albums/r...eliefvalve.jpg[/image]

[/ QUOTE ]


Thats where I put it..still no difference..20-25psi at best cold..guess its coming out after all https://www.yenko.net/ubbthreads/images/graemlins/no.gif..hope it aint hurt https://www.yenko.net/ubbthreads/images/graemlins/no.gif..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

Re: Low oil pressure in ZL-1
 

OK... what about the 3 small (1/8") pipe plugs that go in the lifter valley?