idle surge

a new P/V, that whould be to easy. it's a EFI world and knowing how a carb works is a thing of the past now

Originally Posted by rod123

If the springs are bad in the dist would that show up at idle?
I thought that the springs worked at higher RPM.

Yeah, right on the higher RPM for the advance springs ..... if everything is working as it should. The plates and weights sometimes get gummed up and stick or don't "flow" properly. I've also had a worn bushing, the one in the Dist. shaft, wear and allow the timing to jump all over the place. It was very erratic and a bugger to diagnose.

I guess this is why new "mechanics" just swap out parts now and don't bother fixing anything. "Let's try this. Well that didn't work, how about one of these ......" And it is why most of us have garages full of parts to swap out, well that's my excuse.