Help no oil to rockers
03-08-2021, 12:39 PM
#1
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Help no oil to rockers I recently replaced the lifters on my lq4 installed gm ls7 lifters after install there is very loud chattering from the rockers and i am not getting any oil through the rockers they are all clean and my Dakota gauge says i have 60 psi of oil pressure any ideas what it could be
before the install the motor ran good just had a little lifter tick
before the install the motor ran good just had a little lifter tick
03-11-2021, 12:37 AM
#2
I recently replaced the lifters on my lq4 installed gm ls7 lifters after install there is very loud chattering from the rockers and i am not getting any oil through the rockers they are all clean and my Dakota gauge says i have 60 psi of oil pressure any ideas what it could be
before the install the motor ran good just had a little lifter tick
before the install the motor ran good just had a little lifter tick
03-12-2021, 02:50 PM
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Find that strange since I've never primed an LS engine and have only filled the oil pump through the plug on the side of the block and have always seen oil pressure within a few seconds from start up. And in case you didn't know, LS engines send oil to the lifters and rockers before the rods and mains unless your running an aftermarket block.
Last edited by 01CamaroSSTx; 03-12-2021 at 02:59 PM.
03-12-2021, 03:08 PM
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Find that strange since I've never primed an LS engine and have only filled the oil pump through the plug on the side of the block and have always seen oil pressure within a few seconds from start up. And in case you didn't know, LS engines send oil to the lifters and rockers before the rods and mains unless your running an aftermarket block.
03-12-2021, 04:47 PM
#7
Find that strange since I've never primed an LS engine and have only filled the oil pump through the plug on the side of the block and have always seen oil pressure within a few seconds from start up. And in case you didn't know, LS engines send oil to the lifters and rockers before the rods and mains unless your running an aftermarket block.
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03-12-2021, 04:56 PM
#8
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Guess I misunderstood the question. I had an oil pressure issue with a 5.3 once and after making some repairs it was ticking away at start up. It took several minutes of running for it to finally quiet down and get back to normal but later learned this engine was gummed all to hell and needed to be rebuilt.
03-12-2021, 04:58 PM
#9
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03-12-2021, 05:14 PM
#10
Just made a search on the subject, it’s very common and it takes time to get oil up on top.
Here is one:
https://www.ls1lt1.com/threads/no-oi...ockers.119465/
Here is one:
https://www.ls1lt1.com/threads/no-oi...ockers.119465/
03-12-2021, 05:28 PM
#11
I guess the moderator didn’t approve the link I just posted, but do a google search on the subject and you’ll find loads of threads with this problem. The majority fixes it self, it just takes time, sometimes up to 10 min or engine up to op temp.