LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Got some problems with the car...look inside..weird stumble.

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Old 07-27-2003, 12:05 AM
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Question Got some problems with the car...look inside..weird stumble.

Here is what happaned, i raced a friend of mine from a 3rd gear roll. Right before i was shifting into 4th i felt a slight power drop, finished pulling 4th and slowed down back to 55. After that my car started to shake a litlte bit, then it got little bit worse. IT seems like every time the car is bellow around 2.5k it has a big miss. The engine shakes pretty bad. Once u get above 2.5k its kinda smooth, but you are still able to feel vibrations. ITs 1am right now, so i didnt check much, but so far no codes on the scanmaster, all readings are normal, o2 readings are fine, I checked the wires for burning, they are all fine. Pulled the driver valve cover off and found nothing as well, everyting looks normal so far. Any ideas? The exhaust note is not as loud or as smooth as it used to be, kinda seems like i am running on 7 cylinders.

Thanks for help.
Marcin
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Old 07-27-2003, 12:12 AM
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maybe your optispark or detonation. Maybe it's that new cam of yours take it out and give it to me!
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Old 07-27-2003, 09:49 AM
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ttt
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Old 07-27-2003, 10:06 AM
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Check your springs closely...you may have broke one. I would also pull the plugs and look at each one to see if you have a problem with one cylinder or plug/wire.
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Old 07-27-2003, 10:53 AM
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well problem has been located


broken Rocker Arm stud

http://bellsouthpwp.net/x/x/xxsaint69x/studf.JPG
Should i be conerned with any other damage? Pushrod looks fine.


where can i get a stud quickly? Can i get one from a old 350, or lt1 studs are different?
Thanks
Marcin
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Old 07-27-2003, 05:55 PM
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Originally posted by xxsaint69x
where can i get a stud quickly? Can i get one from a old 350, or lt1 studs are different?
Thanks
Marcin
Yup, they are plain sbc.
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Old 07-27-2003, 09:38 PM
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Glad you found the problem.....Ild consider getting a set of ARP studs soon.
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