Rev'ing then Ticking.....
10-19-2005, 09:57 PM
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Rev'ing then Ticking..... Hey guys, new the board. I searched and searched and can't find anyone with the exact same story.
So, two weeks ago a buddy and I were coming back from a party and decided to do alittle stop-sign action in the middle of nowhere. He was on his warmed over GL1100 and I was in my '99 Z28 (T-56).
Anyway when I launched I had zero traction and rev'd the motor little higher than I meant to. I didn't hit the rev limiter, but don't know how high it went either. He hooked and dusted me.
Two seconds later I could hear a ticking noice from under the hood. I drove home 5 miles away and parked it until today. Its just a weekend only car.
When started cold the tick doesn't seem to be there, or at least not very loud. Soon as the car warms up, the ticking noise is clearly present. It seems to be coming from the driverside bank, around #1 cylinder. We checked the spark plugs/wires, removed the belt, etc. We have not removed the valve cover(s) as yet. The oil was changed less than 200 and 1 month ago with Chevron oil/filter.
One buddy thinks I might of broke and/or bent something with the rev stunt.
Another buddy seems to think it could be a sticky lifter due to some trash in the oil or from sitting for weeks at a time. He also suggests running some of the 'engine flush' stuff you add to the oil before changing it. However, he also admits he doesn't know GEN III's compared to the earlier GEN I/II's.
The car has 80,000 miles, 3" exhaust, SLP lid/MAF, LS6 intake, 3.73 gears, and a K&N filter.
At this point I am lost and seriously considering taking it to the dealer to figure out what the problem could be.
Any thoughts before blowing money at the dealer? Any help is welcomed and thanked in advance.
So, two weeks ago a buddy and I were coming back from a party and decided to do alittle stop-sign action in the middle of nowhere. He was on his warmed over GL1100 and I was in my '99 Z28 (T-56).
Anyway when I launched I had zero traction and rev'd the motor little higher than I meant to. I didn't hit the rev limiter, but don't know how high it went either. He hooked and dusted me.
Two seconds later I could hear a ticking noice from under the hood. I drove home 5 miles away and parked it until today. Its just a weekend only car.
When started cold the tick doesn't seem to be there, or at least not very loud. Soon as the car warms up, the ticking noise is clearly present. It seems to be coming from the driverside bank, around #1 cylinder. We checked the spark plugs/wires, removed the belt, etc. We have not removed the valve cover(s) as yet. The oil was changed less than 200 and 1 month ago with Chevron oil/filter.
One buddy thinks I might of broke and/or bent something with the rev stunt.
Another buddy seems to think it could be a sticky lifter due to some trash in the oil or from sitting for weeks at a time. He also suggests running some of the 'engine flush' stuff you add to the oil before changing it. However, he also admits he doesn't know GEN III's compared to the earlier GEN I/II's.
The car has 80,000 miles, 3" exhaust, SLP lid/MAF, LS6 intake, 3.73 gears, and a K&N filter.
At this point I am lost and seriously considering taking it to the dealer to figure out what the problem could be.
Any thoughts before blowing money at the dealer? Any help is welcomed and thanked in advance.
10-19-2005, 10:42 PM
#2
Launching!
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It could be a spun rod bearing, mine happen last saturday, Could be a rocker arm, i would pull the valve covers and check to see if anythings there, if not, its deeper, good luck.
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11-08-2005, 12:35 AM
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Got it all back together, runs great again.
I was serously considering a larger cam before this happened and since my stock valve springs are alittle soft anyway, this seems like the perfect excuse to do the cam swap w/new springs.
Any recommendations for a larger, but still streetable and Cali SMOG'able cam?
I was serously considering a larger cam before this happened and since my stock valve springs are alittle soft anyway, this seems like the perfect excuse to do the cam swap w/new springs.
Any recommendations for a larger, but still streetable and Cali SMOG'able cam?
11-08-2005, 03:15 AM
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Originally Posted by Kounsy
It could be a spun rod bearing, mine happen last saturday, Could be a rocker arm, i would pull the valve covers and check to see if anythings there, if not, its deeper, good luck.
12-17-2005, 10:50 PM
#14
Originally Posted by CBX
This may be a stupid question but, what would happen if the engine was started with a valve cover removed? Does the oil sqirt all over the rocker assembly or does it ooze over it? Would it be a mess?
12-17-2005, 11:46 PM
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I had that same problem with pushrods.... Kinda funny but everyone kept telling me it was piston slap. switched to comp hi-tech pushrods and haven't had a problem.
12-18-2005, 12:55 AM
#17
Originally Posted by SUTTERERMAN85
you will have one hell of a mess and its kinda hard to run without the coil packs on and spark plug wires hooked up. 
