Motor Knocking, Plz HELP!
10-18-2009, 09:20 PM
#23
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I had a lifter tick for a while, which ultimately resulted in a bent then broken pushrod. That resulted in a miss and kinda did sound like a minor knock. But you said you checked the valvetrain??? My solution was a cam swap and new valvetrain 
Well hey, goodluck. Keep us all informed.
Well hey, goodluck. Keep us all informed.
10-18-2009, 09:46 PM
#25
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Yeahh its weird, i just havent done **** to it. And im positive i didnt drop anything down there. I just wish someone knew what the hell that noise is haha.
10-21-2009, 11:41 PM
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my mechanic/tuner came over tonight and unplugged one of the injector plugs and the backfiring stoppped. But the knocking he said is coming from a wrist pin? Thats what he thinks
10-23-2009, 06:25 PM
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yeah true but i talked to my good friend who knows the cars inside out and he said he dont know how a stock vette can break a wrist pin unless lack of oil. And my car isnt a 1000hp car. He thinks its a lifter but the heads are coming off next week. And were putting new lifters in it.
Anything else we should check?
Anything else we should check?
10-23-2009, 07:09 PM
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yeah true but i talked to my good friend who knows the cars inside out and he said he dont know how a stock vette can break a wrist pin unless lack of oil. And my car isnt a 1000hp car. He thinks its a lifter but the heads are coming off next week. And were putting new lifters in it.
Anything else we should check?
Anything else we should check?
10-23-2009, 09:49 PM
#36
yeah true but i talked to my good friend who knows the cars inside out and he said he dont know how a stock vette can break a wrist pin unless lack of oil. And my car isnt a 1000hp car. He thinks its a lifter but the heads are coming off next week. And were putting new lifters in it.
Anything else we should check?
Anything else we should check?
10-24-2009, 05:15 AM
#37
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I had similuar noise ....
check this threat.:
http://forums.corvetteforum.com/c5-t...the-motor.html
mine problem.....was that one piston was loose, the piston´s bolt went out to the sleaves walls.. and was rubbing against it up and down...
Godd luck man
check this threat.:
http://forums.corvetteforum.com/c5-t...the-motor.html
mine problem.....was that one piston was loose, the piston´s bolt went out to the sleaves walls.. and was rubbing against it up and down...
Godd luck man
10-24-2009, 02:22 PM
#38
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Yeah that plug was pretty messed up, just all black.
It wasnt smashed like from something being in it.
And im not buying parts for it, my buddy has some lifters laying around his house, and if they fix the prob, then ill pay him etc.
It wasnt smashed like from something being in it.
And im not buying parts for it, my buddy has some lifters laying around his house, and if they fix the prob, then ill pay him etc.
11-01-2009, 09:00 PM
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OK, sorry it took so long
Took the heads off replaced my lifters with some comp ones, Got my friends ls6 heads that our milled down a bit, and some comp springs, new injectors plugs wires gaskets coil packs ect. ect.
Start her up and still a little knock, so i decided to just driver her around the block and the knock went away?
BUT its smoking a lot out the exhaust and under the hood, my mechanic said it shouldnt be smoking this much for that long cause something still isnt right. Still missin. P0300
HMMMMM?
Took the heads off replaced my lifters with some comp ones, Got my friends ls6 heads that our milled down a bit, and some comp springs, new injectors plugs wires gaskets coil packs ect. ect.
Start her up and still a little knock, so i decided to just driver her around the block and the knock went away?
BUT its smoking a lot out the exhaust and under the hood, my mechanic said it shouldnt be smoking this much for that long cause something still isnt right. Still missin. P0300
HMMMMM?