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Forum: C6 Corvette General Discussion
09-09-2015, 05:13 PM
Replies: 470
Views: 179,302
Posted By don22u

Expensive mod and you wrecked the car

The symmetry in the two head light sets is different. Now you have "cat" eyes" squinting at you. Did you check the alignment per haps, you know just in case the light beams are scattering across the...
Forum: C5 Tech
12-13-2012, 08:18 AM
Replies: 24
Views: 14,181
Posted By don22u

So what is your point that is helpful. I'm...

So what is your point that is helpful. I'm finding these forums are becoming places to.....

By the way, "these motors" are NOT "crazy noisy." They're smooth, fluid power engines through the range....
Forum: C5 Tech
12-12-2012, 08:07 PM
Replies: 24
Views: 14,181
Posted By don22u

Video won't do you any good. The valve train...

Video won't do you any good. The valve train issue is a tear down of which you will not be able to determine anything by a video. You can change the lifter to ls7 but with the variable timing of the...
Forum: C5 Tech
12-12-2012, 02:55 PM
Replies: 24
Views: 14,181
Posted By don22u

I have audio. I placed a recorder on top of the...

I have audio. I placed a recorder on top of the engine, underneath the engine and in the cabin. Definitely can hear the clang clanging
As I mentioned previously, if under warranty, persist for the...
Forum: C5 Tech
12-12-2012, 11:14 AM
Replies: 24
Views: 14,181
Posted By don22u

My 2008 LS3. GM replaced the lifters. that didn't...

My 2008 LS3. GM replaced the lifters. that didn't work.
GM replaced the camshaft assembly and lifters, removed excessive carbon from pistons, fuel injection bulletin- guess what, the knocking is...
Forum: C6 Tech/Performance
11-29-2012, 11:26 AM
Replies: 15
Views: 3,841
Posted By don22u

Thanks, Don't see a problem with Mobil One. I'll...

Thanks, Don't see a problem with Mobil One. I'll look into the cat and manifolds
As to Al Gumby on the ls3 with piston slap, there will come a day when,........ don't let that happen, get it fixed...
Forum: C6 Tech/Performance
11-29-2012, 09:34 AM
Replies: 15
Views: 3,841
Posted By don22u

Mobil One. Fuel system and pressure is fine....

Mobil One. Fuel system and pressure is fine. Carbon buildup a result of the malfunctioning camshaft assembly, due to not replacing the camshaft with the lifters the first time. I even questioned them...
Forum: C6 Tech/Performance
11-29-2012, 09:29 AM
Replies: 15
Views: 3,841
Posted By don22u

Hey thanks. No its not an oil pump issue. Thats...

Hey thanks. No its not an oil pump issue. Thats the first thing I looked for and watch each time at startup 40 psi and steady
thanks for the feedback
Forum: C6 Tech/Performance
11-28-2012, 03:53 PM
Replies: 15
Views: 3,841
Posted By don22u

08

Yes but a corvette is not a truck and you didn't specifically address my questions. See I'm trying to identify solutions as this clacking is deeper than a lifter; likely wrist pin or piston, not...
Forum: C6 Tech/Performance
11-28-2012, 03:08 PM
Replies: 15
Views: 3,841
Posted By don22u

'08 Engine knock at start up

2008 after sitting a couple of days has a loud clapping knock. GM replaced the lifters, that didn't do it. GM replaced the camshaft assembly and new lifters again.

The knock is still there. The...
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