Disconnect the + wire Coils Take #1 Spark Plug Out Get a helper Use Compression Guage if not
Available, Just put your finger over the Spark Plug Hole,
have help BUMP the Starter over till You can Feel The Compression at your finger you need #1 at TOP DEAD CENTER on its Compression STROKE Fine tune it by
using a STRAW in the Plug Hole to feel the PISTON Move UP To VERY TOP Dead center----------------------------------This is Tricky but
don't Loose these Instructions------- If you have the OPTI_SPARK Ignition System My Books show all about it but Nothing on the Timing "MARK" as this is the step I
Stoped at Above.. Coil Pack Ignition Will Have a Timing MARK On the Lower Harmonic
Balancer.
Point Being if Mark is NOT on the Degree Indicator It has JUMPED TIMING<<
Surly on a Coil Pack Ignition System BUT
-------- The
Opti Spark system if there is NO Timing Mark to Go by I Would
Suggest Breaking Down and
Letting A DEALER Handle it Unless You Can RULE that it HAS JUMPED TIME------------------------------------------------------------------------I
Truly Hope I've shed some Light on Your
Delima and this Leads you to a Smooth running Chevy. PLEASE
don't forget to Rate Me ------------------------------------P.S. The Opti - Spark System Has A BAD REPUTATION Just FYI
Recall - Opti-Spark Distribtor, Stall/No Start, Code 16
Notes
9227chevy01
Number:
92C11
Section:
6E
Date:
Feb., 1992
Subject:
PRODUCT EMISSION CAMPAIGN 92C11 -
Opti-SPARK
DISTRIBUTOR
Model and Year:
1992 CHEVROLET CORVETTE W/ LT1 ENGINE
To:
All Chevrolet Dealers