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tomt966

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If an engine is undertimed, i.e. timing is 7 BTDC but ideally it should be at 14-16 BTDC, would the engine run warmer or be hard to start?
 

But you'll probably be down on power. It will be noticed on a higher performance engine.
If the timing is advanced to much, then you'll notice hard starting and warmer engine temps.
 
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