1998 Chevy Cavalier Engine Rebuild

Tiny
CURTIS2930
  • MEMBER
  • 1998 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • MANUAL
  • 112,000 MILES
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.
Thursday, April 2nd, 2009 AT 10:32 AM

6 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi:
Did you replace plugs, wires? As far as the cam pulley, I don't think that would cause the problem.

Joe
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Friday, April 3rd, 2009 AT 6:30 PM
Tiny
CURTIS2930
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  • 4 POSTS
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
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Monday, April 6th, 2009 AT 5:01 PM
Tiny
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.
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Tuesday, April 7th, 2009 AT 10:45 AM
Tiny
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
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Tuesday, April 7th, 2009 AT 10:57 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
An Egr leak can cause this. Let me know what you find.
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Tuesday, April 7th, 2009 AT 11:00 AM
Tiny
CURTIS2930
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I will do
thanks
Again
Curtis
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Tuesday, April 7th, 2009 AT 11:31 AM

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