93 Z28 LT1 Camaro, backfiring .

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RegZ28LT1 - 02 Apr 2007 03:28 GMT

ok i changed my spark plugs a a week ago and the reason i did that was the
car was backfiring and was nt running right, now i get new plugs and it
wouldnt start with the gap at 0.050 i went online and got info that said
it was 0.035, now it starts but its running rough like it backfires when
accelerating and when i let off on the gas sometimes, im not all
experienced with cars but ive learned alot in the past few years.

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Gary - KQ6RT - 03 Apr 2007 01:55 GMT

More than likely you need a new OptiSpark distributor. The Opti going out is
a common problem on LT1's. The Opti is located behind, and below the water
pump. A common reason for failure is when the water pump goes out, it leaks
on top of the Opti, so it's best to replace both at the same time. Count on
a full afternoons work, and about $600 including gaskets and antifreeze etc.

Gary

> ok i changed my spark plugs a a week ago and the reason i did that was the
> car was backfiring and was nt running right, now i get new plugs and it
> wouldnt start with the gap at 0.050 i went online and got info that said
> it was 0.035, now it starts but its running rough like it backfires when
> accelerating and when i let off on the gas sometimes, im not all
> experienced with cars but ive learned alot in the past few years.

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