Thread: Dead Cylinder
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Old 05-19-2010, 03:42 PM
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Join Date: Nov 2006
Location: Gig Harbor, WA
Cobra Make, Engine: BDR#499 351W with Webers
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Here is the latest update: I put my timing light on the offending cylinder’s plug wire and sure enough, I had a strobe. Just to be sure, I pulled the plug and grounded it out while the engine was running. I got a bright white spark. I then put my compression tester on a couple of other cylinders to compare what I had gotten previously from the dead cylinder and they were almost exactly the same (approx 150 psi).

This is really beginning to puzzle me…I have good compression, appear to have good spark and when I remove the plug I can smell some fuel on it. Also, that cylinder will back fire (in the pipe) when the engine is running; telling me there is un-burnt fuel in the header. Maybe the spark is too weak once it is under pressure??

I sure would like to get this car running right. I have to go back to Afghanistan in mid August and would really like to drive it some before I leave.

Any suggestions???

Thanks,

Gun Doc
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