Supercharged111
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The old distributor could have been worn too, allowing the rotor to swing about as it rotated.
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That’s what my original was doing, rotor swung about .090 either way, I found after I took it out. I was surprised it didn’t give any indication, like stumbling or a code. It was basically running retarded a few degreesThe old distributor could have been worn too, allowing the rotor to swing about as it rotated.
That’s what my original was doing, rotor swung about .090 either way, I found after I took it out. I was surprised it didn’t give any indication, like stumbling or a code. It was basically running retarded a few degrees
Didn’t check it in the truck. It was out and on the bench when I discovered. I had a new UMP dizzy already, so didn’t give it another thought.Could you wiggle the rotor with it installed in the truck?
@Reluctanse no picture of the cap. Not sure what is going on there. The old dizzy gear has normal wear, suppose you could epoxy the screw hole with something that won’t bond the screw to the plastic. Show us the capWhat do you guys make of this?
UMP cap that was on the truck. Maybe 1000 miles…
What would cause these weird corrosion spikes?
I’m kind of loathe to put this stock one back in, the gear doesn’t look great and one of the cap screw holes is cracked…
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Good article. Looking at that and the weird buildup on my terminals, makes sense that my distributor was just not really lined up quite rights. Also explains the inconsistencies I was having.the picture of the cap peaked my interest...rotor phasing maybe?? haven't spent time to understand how to correct on our dizzys...check this article on the spikes on the terminals https://www.onallcylinders.com/2016...sion-and-deposits-and-how-can-you-avoid-them/
this related video too...https://www.youtube.com/watch?v=aWMlNwGW0tM