1998 Chevy Cavalier Engine Rebuild

1998 CHEVROLET CAVALIER
112,000 MILES • 4 CYL • FWD • MANUAL
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CURTIS2930
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To make a long story short- I recently replaced pistons-Head-Wtr pump-
Started up for first time last night-
It turned over fine but it was shaking- no to bad
but bad enough- We were very carefull when we taking off and reinstalling the balancer-
But its shaking as if its not balanced-?
Could it be something in Crank Pully?
the only other thing i can think of-is that maybe we
got the Cam sprokets were switched?
Intake and exhaust ?
Please help
Any tuning ideas that would smooth the motor up.
Apr 2, 2009 at 10:32 AM
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JACOBANDNICKOLAS
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Hi:
Did you replace plugs, wires...? As far as the cam pulley, I don't think that would cause the problem.

Joe
Apr 3, 2009 at 6:30 PM
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CURTIS2930
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I did replace all plugs and Wires
I was reading a earlier question
It was in reguards to rough idleing
Sounds like my situation
We first thought it was a vacuum problem
But-I though this was a zero clearance motor
Any little bit would possibly break valves
Thats how I got into this predicament
Changing a Water pump- and must have turned crank off of tdc
could it be 1 tooth off- or a link off
that could be causing to idle rough
Apr 6, 2009 at 5:01 PM
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JACOBANDNICKOLAS
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If you are a tooth off, that would cause a problem. If you are not 100% sure, (and I hate to say it), you may want to recheck.
Apr 7, 2009 at 10:45 AM
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CURTIS2930
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Hooked to the OBDII on it
see wht kind of reading we would get
It came up with P0303 MIsfire in third cylinder
Changed connector to second cylinder
Rechecked code- it then came up p0300
All wires and plugs are new- Could it be the Ing Module-read that they fail on occasion
Only other thing im thinking of is that we didnt replace EGR gasket-and seems like we are getting a small exhaust leak near exhaust manifold-so I will replace both gaskets tonight- Sounds good but runs rough at low idle
once you give it some rpm it smooths out
I think we are narrowing it down- Thanks for all of your advise
Curtis
Apr 7, 2009 at 10:57 AM
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JACOBANDNICKOLAS
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An Egr leak can cause this. Let me know what you find.
Apr 7, 2009 at 11:00 AM
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CURTIS2930
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I will do
thanks
Again
Curtis
Apr 7, 2009 at 11:31 AM