Yesterday I hooked up a timming light to my car to see if it was set right, because the has been running rough and I thought it need to be timed. With that said, I took a look at my timming and mark and i noticed that mark was fluxuation up and irraticly between 6° and 8°. I can only supose what the number is do to the fact that i could not read the numbers on the gauge because it was dirty. My question is why was the mark going up and down? My father said that my spark plug wires were shorting out or something. Is this true? I do need to change them.

Thanks,
Robert

P.S. What degree of advance should set my car on?

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Chevy 2.8L 60° V6
Mods:
?K&N Filter Lid
?87 Formula Hood
?Bosch Platinum +4
?Hi-Flo CatCo CAT
?Flowmaster 80 Series Muffler
?83 Trans Am 15x7 Turbo Fin Wheels
?B.F.Goodrich Radial T/A 225/60-15
?Chevy 2.8L Heddman Headers (Going on soon)

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http://www.geocities.com/fiream/RobsCarArtPa.html?994187591828

 

10* for automatic while in gear. Replace the wires, it really wouldn;t hurt; unless there less than a year old... then I'm not sure what your problem is

 

did u dissconect the EST wire?

 

As far as I know, there's no EST wire on the 82-84 carb'd 2.8's. Are you sure "10 advance" is a spec for an 82-84 2.8? I thought that was just for our multiport injected cars...

If your car still has the original hood, the timing will be on the emissions sticker.


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-Tom P (Hot rodded 1986 Firebird 2.8l)

 

I think the stock advance is 6 or 8 degrees, i'll check in the morning.

------------------
Chevy 2.8L 60° V6
Mods:
?K&N Filter Lid
?87 Formula Hood
?Bosch Platinum +4
?Hi-Flo CatCo CAT
?Flowmaster 80 Series Muffler
?83 Trans Am 15x7 Turbo Fin Wheels
?B.F.Goodrich Radial T/A 225/60-15
?Chevy 2.8L Heddman Headers (Going on soon)

Aol instant messenger: FIREAM



http://www.geocities.com/fiream/RobsCarArtPa.html?994187591828

 

If it is carbed, I don't think it uses an EST, but it should have a vacuume advance that needs to be disconnected and plugged shut.

 

If the timing is fluctuating, doesn't that mean it is tme for a new timing chain (assuming that the timing light is correct)?

Just a thought.

Dale