[DeTomaso] Techno question: Lean carb and engine pinging
Charles Engles
cengles at cox.net
Tue Jun 5 20:24:25 EDT 2007
Dear Forum,
Just got the Pantera back from the mechanic. I thought I had a miss and had them run diagnostics. The good news is that the abused welded-upon MSD was working fine, but the exhaust gas analyzer showed that one cylinder bank was running lean. They adjusted the carb and things do seem better.
Last summer, I was fighting a pinging problem that finally improved by backing off the MSD distributor advance curve.
Can a lean engine mix lead to pinging when previous engine parameters (CR; timing; octane) remain the same???
Engine rookie, Chuck Engles
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