spark gap
Here is the tsb
TO: ALL CHEVROLET DEALERS
Some 1985 Camaro, Monte Carlo and Corvettes with high output ignition coils may exhibit driveability problems ranging from hesitations, sags, and stumbles to complete ignition cut-out. These conditions my be caused by extended exposure to high temperatures.
Should any vehicle/engine combination stated above experience the described driveability conditions and normal service procedures (See Service Manual) do not correct the conditions, the following steps are to be taken to prevent future reoccurrence:
Replace the high output coil and distributor module with standard output coil and module as listed below: Model Year Vehicle Model Engine RPO Replacement Coil Replacement Module
1985 Camaro, Monte Carlo L69 1985473 1976908
1985 Camaro LB9 1985473 1976908
1985 Corvette L98 1985474 1976908
Remove and regap spark plugs to .035 inch.
Check and reset ignition timing to specifications as indicated on the vehicle emissions label.
FOR 1985 ONLY """"this is the new emissions label part numbers""""
Usage Replace With
Camaro With L69 and NA5 14086583
Camaro With L69 and NB2 14086585
Camaro With LB9 and NA5 14086587
Camaro With LB9 and NB2 14086589
Monte Carlo with L69 and NA5 14086584
Monte Carlo with L69 and NB2 14086586
Corvette with L98 and NA5 Less NN5 14086591
Corvette with L98 and NA5 With NN5 14086592
Corvette with L98 and NM8 14086593
Last edited by milsurpman; Aug 3, 2007 at 09:16 AM.







