Help appreciated!
Thread Starter
Cruising
Joined: Aug 2025
Posts: 14
Likes: 0
Help appreciated!
Hi, I recently purchased a C5 Corvette and had been driving it for a couple weeks when one night I stopped and got gas and when I started it back up, I noticed a loud tick took it home and parked it
im assuming it’s atleast a cam and lifter job now but I’m just curious what could’ve caused it ?
I got the valve covers off and noticed that two lifters on the driver side didn’t seem to be lubricating
im assuming it’s atleast a cam and lifter job now but I’m just curious what could’ve caused it ?
I got the valve covers off and noticed that two lifters on the driver side didn’t seem to be lubricating
Thread Starter
Cruising
Joined: Aug 2025
Posts: 14
Likes: 0
but car is completely stock. And I manually tested oil pressure and it’s sitting at 40psi at idle
it also seems to be rpm related. As it gets worse with rpm
Thread Starter
Cruising
Joined: Aug 2025
Posts: 14
Likes: 0
Le Mans Master
Joined: Jul 2010
Posts: 6,007
Likes: 723
do not start again until you pull those valve covers off. Thats not a exh leak. If it is then ill shut up.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Le Mans Master
Joined: Jul 2010
Posts: 6,007
Likes: 723
If you didn't know what oil psi you had i would change out oil pump while its torn again its a big job. Not expensive if you do the work, if not, hope you have deep pockets.
Race Director
Joined: Aug 1999
Posts: 11,117
Likes: 671
From: SE Pennsylvania
St. Jude Donor '03 thru '26
Oldtimer
I have to agree with T-Ray and helga, If you have pulled the 2 valve cover and start the engine, you should be able to put a clean shop towel over what ever rockers , and see if the tapping slows down or stops. If so shut it off and see about changing both the oil pressure switch and or the oil pump, but is odd that if it was the oil pump, why it only started once it was shut off for a few minutes for a fuel up. But I would want to check the oil pressure while running. The old adage is 10 PSI for every 1000 RPM's, so if the engine is idling at 700 RPM
and you have 10 PSI then your good.
and you have 10 PSI then your good.
Administrator
Joined: Mar 2001
Posts: 368,102
Likes: 24,732
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Moved to C5 Tech.
Tech Contributor
Joined: Jan 2007
Posts: 19,416
Likes: 1,144
From: Dyer, IN
I have to agree with T-Ray and helga, If you have pulled the 2 valve cover and start the engine, you should be able to put a clean shop towel over what ever rockers , and see if the tapping slows down or stops. If so shut it off and see about changing both the oil pressure switch and or the oil pump, but is odd that if it was the oil pump, why it only started once it was shut off for a few minutes for a fuel up. But I would want to check the oil pressure while running. The old adage is 10 PSI for every 1000 RPM's, so if the engine is idling at 700 RPM
and you have 10 PSI then your good.
and you have 10 PSI then your good.