Can i please get a stronger spark
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Instructor
Joined: Dec 2002
Posts: 174
Likes: 1
From: brandon florida
Can i please get a stronger spark
I have a 72 Stingray with the stock 350 and i'm having problems getting the car to start. The engine was just rebuilt and i've had it running but the spark i'm getting is not bright blue like it should be, but orange! I've replaced the coil, installed the Crane XR electronic ignition module and set the proper gap all in the original tach drive distributor. The plugs are new as are all the plug wires (8mm mallory). I'm still getting a week spark and if the car doesn't start within the first couple of tries it tends to flood and foul the plugs. At first i thought it might be a fuel flow problem, but that is not the case the fuel pressure is about 6.5psi from an Edelbrock mechanical fuel pum, that is what Edelbrock recommends for the 600 cfm i have. Has anyone heard of any problems with the Crane module? I did some research before buying and heard nothing but good things and now this! Any ideas as what i might do to remedy my situation? Is there another setup for electronic ignition that would better suit my application? If so PLEASE let me know!
Advanced
Joined: Sep 2003
Posts: 91
Likes: 0
From: Denver Colorado
Re: Can i please get a stronger spark (1972vettman)
Check the voltage going to the Crane XR electronic ignition module. I am pretty sure it is supposed to be 12. If you pulled the power through the balast resistor, you will only have about 8 this will cause the week spark.
Safety Car
Joined: Jun 2001
Posts: 4,004
Likes: 2
From: Severna Park Md
Re: Can i please get a stronger spark (1972vettman)
Also check to make sure the engine ground strap was not left out when the engine was put back in. not sure if the 72 is the same as my 73 but on mine the engine ground strap runs from the block to the frame and is located near the passenger side motor mount. The engine could be partially grounded thru exaust pipes and clamps and what ever else. But for a good positive continous groung the strap needs to be in place. Charging and ignition problems can result and be intermitant without a good ground.
