'41 super 8 stumbles on idle

Posted by Dan Marrin On 2012/3/18 16:53:11
Recently I have developed an idling problem with my 1941 160. It used to run fine at a slow idle after warming up, but now it "stumbles" and runs rough after warm up. When I try to drive it, it will die when I come to a stop or attempt to shift, unless I keep up the rpm's. I have adjusted the idle up, but I know that is not the solution.

My first suspicion is that the timing was out of whack, so I set about attempting to adjust the timing but am not certain which part of the "pointer" above the vibration damper. see picture below. When I attepmt to set to the line shown in the picture, the engine stops.

Must I disconnect the vacuum advance line to the distributor, before attempting to set the timing?

Any other ideas?

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