PaulR Posted September 19, 2011 Report Share Posted September 19, 2011 Hi All CT24209 is running reasonably well but I'm not quite happy that pick up is as sharp as it once was. On deceleration there are pops and burbles ( which I actually quite like-sounds sporty) from the exhaust. They were never there when I was happy with how she was running she I wondered if anyone could explain a cause, I'm suspecting ignition timing or perhaps too weak a mixture or both. Thanks in Advance Paul Quote Link to post Share on other sites
peejay4A Posted September 19, 2011 Report Share Posted September 19, 2011 Weak mixture and/or an induction air leak would be my guess. Quote Link to post Share on other sites
PaulR Posted September 23, 2011 Author Report Share Posted September 23, 2011 Evenin Retimed and reset the mixture on the carbs and now she's much happier, still minor poppin but happy with how she's runnin Paul Quote Link to post Share on other sites
ianc Posted September 23, 2011 Report Share Posted September 23, 2011 Strange as it may seem, holes in the exhaust system can lead to this popping. When my original SAH exhaust, fitted to 4VC in 1962, started to fall apart for the 3rd time at the brazed joints, I suffered this annoyance. I purchased the modern repro of the SAH manifold (but with welded joints) and this cured the problem immediately. Ian Cornish Quote Link to post Share on other sites
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