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1982 Corvette Crossfire Injection Timing Issue?

Joined
Jun 9, 2019
Messages
11
Location
Hopkins MN
Corvette
1982
I am struggling to understand how to use the forum on this site or any site. So if anyone can help me in that area I would appreciate it. The main issue I have is with my 1982 Corvette crossfire injection car. I have done everything I can think of and yet my car still won't run right. I have replaced everything. I have done everything. I have had it timed several times and still I have a problem with it. I even checked my catalytic converter, but it still won't run right. Is there some special secret to a crossfire? Does someone have some insight on this particular vehicle? It has to be a timing issue, but I'll be damned to figure out what it is. Is there anyone out there who knows the crossfire engine?
 

Rob

Site Administrator
Staff member
Administrator
Joined
Sep 16, 2000
Messages
13,790
Location
New Hampshire
Corvette
1990 Corvette ZR-1
Welcome to the Corvette Action Center.

If you need help with how to navigate through the forums, please start a new thread (topic) in the Site Help and Feedback forum.

I'm going to move your thread into the C3 Tech forum for greater exposure...
 

Tom Bryant

Well-known member
Administrator
Joined
Nov 9, 2000
Messages
7,333
Location
Edgerton, Ohio, United States
Corvette
1959 black 270hp (9/2/69) 1981 Beige L81(10/20/80)
Welcome to the CAC.

Exactly what is it doing? What have you done so far?

Tom
 

UKVETTEHEAD

Member
Joined
Oct 4, 2016
Messages
17
Location
Guildford, Surrey UK
Corvette
C3 Collectors Edition
Have you looked at cam lobe wear. This was an issue I had a few years ago. I am assuming the cam timing is set up OK. Are the compressions about the same for each cylinder? If not then you could have a valve problem. When the ignition timing was done was the brown/orange wire disconnected from the distributor and reconnected afterwards?
The distrib cap could have hairline cracks which are tracking.
Also you need about ten psi fuel pressure to get the TBIs to work . It also may be worth looking at the harmonic balancer on the front of the crank which holds all the belt pulleys. If the rubber has deteriorated timing the engine with its timing mark may be inaccurate. Make sure you find TDC on the N0. 1 cylinder is actually at TDC and compare with the timing mark on the balancer. I think the timing for a standard L83 engine should be 6 degrees BFTDC.
Good luck.
 

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