no oil pressure HELP new block
11-01-2005, 10:12 PM
#1
10 Second Club
Thread Starter
Join Date: Mar 2003
Location: pierre part louisiana
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
no oil pressure HELP new block blew motor two weeks ago.broke piston and cracked sleve
so I saved the crank found a GM block Still in the crate .
Put new rods ,forged je pistons had everything balanced
I assembled the motor ,plastigaged everything, all checked out good. put slp oil pump with rollmaster double roller.Start motor no oil pressure. did some research found out about a plunger over the oil filter put that in still nothing.changed oil pump still nothing. filter is filling up with oil and oil pressure sending unit is getting oil, lifters are not tapping but no oil pressure changed the O ring on the pickup,nothing.PLEASE HELP anyone who has had any experience with this please talk.ive even changecx the sending unit still nothing
When i say nothing at idle it has about 10 psi and 15 when its just off idle
so I saved the crank found a GM block Still in the crate .
Put new rods ,forged je pistons had everything balanced
I assembled the motor ,plastigaged everything, all checked out good. put slp oil pump with rollmaster double roller.Start motor no oil pressure. did some research found out about a plunger over the oil filter put that in still nothing.changed oil pump still nothing. filter is filling up with oil and oil pressure sending unit is getting oil, lifters are not tapping but no oil pressure changed the O ring on the pickup,nothing.PLEASE HELP anyone who has had any experience with this please talk.ive even changecx the sending unit still nothing
When i say nothing at idle it has about 10 psi and 15 when its just off idle
11-02-2005, 06:34 AM
#4
10 Second Club
Thread Starter
Join Date: Mar 2003
Location: pierre part louisiana
Posts: 346
Likes: 0
Received 0 Likes
on
0 Posts
by plunger i mean it is a plug that goes in the back of the block over the oil filter it looks like it just sends oil to the filter and then back up. Ive pulled the oil pan 3 times and 2 different O rings and i get the same thing impulling my hair out my head
11-04-2005, 01:28 AM
#5
11 Second Club
iTrader: (34)
Join Date: Feb 2005
Location: Ft. Wayne, Indiana
Posts: 3,158
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Red01Chevy
blew motor two weeks ago.broke piston and cracked sleve
so I saved the crank found a GM block Still in the crate .
Put new rods ,forged je pistons had everything balanced
I assembled the motor ,plastigaged everything, all checked out good. put slp oil pump with rollmaster double roller.Start motor no oil pressure. did some research found out about a plunger over the oil filter put that in still nothing.changed oil pump still nothing. filter is filling up with oil and oil pressure sending unit is getting oil, lifters are not tapping but no oil pressure changed the O ring on the pickup,nothing.PLEASE HELP anyone who has had any experience with this please talk.ive even changecx the sending unit still nothing
When i say nothing at idle it has about 10 psi and 15 when its just off idle
so I saved the crank found a GM block Still in the crate .
Put new rods ,forged je pistons had everything balanced
I assembled the motor ,plastigaged everything, all checked out good. put slp oil pump with rollmaster double roller.Start motor no oil pressure. did some research found out about a plunger over the oil filter put that in still nothing.changed oil pump still nothing. filter is filling up with oil and oil pressure sending unit is getting oil, lifters are not tapping but no oil pressure changed the O ring on the pickup,nothing.PLEASE HELP anyone who has had any experience with this please talk.ive even changecx the sending unit still nothing
When i say nothing at idle it has about 10 psi and 15 when its just off idle
Could be a bad oil pressure sending unit.
Trending Topics
11-04-2005, 02:46 PM
#8
8 Second Club
iTrader: (11)
Join Date: Jul 2005
Location: nj
Posts: 535
Likes: 0
Received 0 Likes
on
0 Posts
my buddy had the same problem with his new 441.
every thing was new and all specs where tighter then stock he talked to comp they told him that his comp lifters could be bleeding down. what lifters are u running?
every thing was new and all specs where tighter then stock he talked to comp they told him that his comp lifters could be bleeding down. what lifters are u running?
11-04-2005, 09:19 PM
#9
TECH Resident
The plastic barbell shaped plug goes in the back of the block, in the oil passage, above the filter. The rear cover holds it in. Also, there is a 5/8 freeze plug in the front of the block, same oil galley. I have had the same problem all year, put a .140 shim in the oil pump bypass spring to fix it. That worked until I went road racing for 15 minutes and the oil pressure dropped.