Too Much Retard cause Misfire?
#1
Too Much Retard cause Misfire?
I tweeked my cam timing to a little over 6 degress retarded on the exhaust cam at the weekend, i turned the car over numerous times by hand, there was not contact between pistons and valves. At first i thought it was fine but i started it again last night and there seems to be a very minor miss fire, have i bent a valve or can the retarded timing cause this. It revs fine, its idle is just a little unstable. I have just fitted underdrive pulleys could it be these?
#2
*** Sierra RS Custard ***
iTrader: (3)
Yes it could be the retarded cam timing affecting it, as it will need a tweak to the map now as the cylinder fill at idle will almost certainly be less than it was, so if it was a touch on the rich side anyway it could now be just that bit richer again by enough to make the idle wander a touch.
Last edited by Chip; 10-05-2010 at 08:02 AM.
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