Lifters
Thread Starter
Instructor
Joined: Nov 2007
Posts: 246
Likes: 78
From: Niceville, FL
2021 C6 of the Year Finalist - Modified
Lifters
Has anyone ever had a collapsed or bleeding down lifter but no audible signs of it? Meaning, no ticking or any other noises to give you a clue there is something wrong? I'm about at my wits end with this thing......Thanks!
Le Mans Master
Joined: Jul 2010
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Melting Slicks
Joined: Nov 2011
Posts: 3,164
Likes: 258
From: Virginia
What exactly do you have going on? If you had a collapsed lifter or one bleeding down you’d hear it
Thread Starter
Instructor
Joined: Nov 2007
Posts: 246
Likes: 78
From: Niceville, FL
2021 C6 of the Year Finalist - Modified
Melting Slicks
Joined: Nov 2011
Posts: 3,164
Likes: 258
From: Virginia
Definitely something going on then. I would imagine you would hear it pretty clearly if you had a couple of collapsed lifters tho… pull your valve covers and look around, check and see if you have any up and down movement in any of the rockers.
Thread Starter
Instructor
Joined: Nov 2007
Posts: 246
Likes: 78
From: Niceville, FL
2021 C6 of the Year Finalist - Modified
Yeah man, that's next. Been listening with a stethoscope and haven't picked up any abnormalities. They all sound the same.
Melting Slicks
Joined: Nov 2011
Posts: 3,164
Likes: 258
From: Virginia
I tried isolating mine with a stethoscope and no luck. When you pull your covers if you can push down on the pushrods then yea you prob have a collapsed lifter
Thread Starter
Instructor
Joined: Nov 2007
Posts: 246
Likes: 78
From: Niceville, FL
2021 C6 of the Year Finalist - Modified
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Le Mans Master
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From: Southeast TX
Take the valve covers off and check every one of the rockers for play. When one valve is down on any particular cylinder, the other is on the base circle. Check the ones you can and rotate the engine and check some more. If you have a querred lifter, it will show up. What's the history on your injectors? If one or two are bad, they can pour way too much fuel in the cylinder.
Thread Starter
Instructor
Joined: Nov 2007
Posts: 246
Likes: 78
From: Niceville, FL
2021 C6 of the Year Finalist - Modified
Take the valve covers off and check every one of the rockers for play. When one valve is down on any particular cylinder, the other is on the base circle. Check the ones you can and rotate the engine and check some more. If you have a querred lifter, it will show up. What's the history on your injectors? If one or two are bad, they can pour way too much fuel in the cylinder.