LS1 Valve adjustment Procedure????
04-15-2006, 08:30 PM
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LS1 Valve adjustment Procedure???? Can anyone tell how to adjust my valves. Its a 2004 corvette and the torque specs. are 22lbs on the rocker arms......the car keeps having a rough idle and pings. Can anyone help?????
04-15-2006, 08:36 PM
#3
Do the rockers keep coming loose? is that what is causing the pinging?
Or are you just guessing?
If they keep coming loose, try putting some blue loctite (medium strength) on the threads of the bolts that hold the rockers down.
Torque them to 22 lbs. Crank the engine over by hand a few times, then re-torque them all again. you should be good to go.
The ls1 stock rockers are non-adjustable.
Or are you just guessing?
If they keep coming loose, try putting some blue loctite (medium strength) on the threads of the bolts that hold the rockers down.
Torque them to 22 lbs. Crank the engine over by hand a few times, then re-torque them all again. you should be good to go.
The ls1 stock rockers are non-adjustable.
04-15-2006, 08:40 PM
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My rockers are not coming loose just my guess of whats wrong I just rebuilt the motor with new forged pistons it ran fine for about 200 miles and it started pinging under a load and back firing and not wanting to idle...just dies.....also no bend rod...
04-15-2006, 08:46 PM
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2004 Corvette and you just rebuilt the motor and you're guessing that the problem is valve adjustment. Sounds like there is more going on. Maybe more info' about the history might help some of the guru's here to lend a hand.
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04-15-2006, 08:50 PM
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Its a 2004 corvette with 7psi procharger, headers,borla exhaust, 2800 stall, MSD.....everything has been fine untill I cracked a piston .....that began the project to put forged pistons in it.....it has been custom tuned by thunderracing...before the rebuild...after the rebuild it ran for about 200 miles.....NOW the problem begins...?????new plugs,wires,etc...dont know what to do.....
04-15-2006, 08:54 PM
#11
lol, I'm not sure either. On f-body's it's on the body behind the rear passenger seat. Just follow the fuel lines from the tank, you're sure to find it somewhere.
Curious, was it pinging before the rebuild? What was the cause of the cracked piston?
Curious, was it pinging before the rebuild? What was the cause of the cracked piston?
04-15-2006, 09:17 PM
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The car also have 38lb injectors in it. which have been running fine and programmed with.....now what would be the best way to determine if its the fuel filter? Maybe check fuel rail pressure?? if so what should it be? if its ok.
04-15-2006, 09:41 PM
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As far as I know the fuel pump is stock....But what bothers me the most is before the rebuild it ran fine and after the rebuild it ran fine for 200 miles....nothing fits to me.