I find that about every 100 runs I have to check the screws holding the rotor on my MSD Pro Billet Distributor. On more than one occasion I have found them loose. I try to tighten them all I dare, but sooner or later they come loose. I run a crank trigger ignition, so there is not much inside the distributor. Is this just common maintenance, or do I have something going wrong?

I have the same experience. A very small drop of blue loc tite is your friend.

Same here, Loctite FTW

quote:

Originally posted by "The Bender":
Same here, Loctite FTW

But you still have a screw loose,lol

I think it picks up a lot of "rattle" from the cam and oil pump. And yes, a drop of locktite on the screwa is a good idea.

I have some loctite "purple" extra low strength for this kind of stuff

quote:

Originally posted by T/D6591:

quote:

Originally posted by "The Bender":
Same here, Loctite FTW

But you still have a screw loose,lol

LOL, and Loctite won't help either.....

loc-tite,then a dab of silicone on top of screw heads

Same problem, the beveled “locking” washers are useless, loctite the two buggers. Problem solved.

Bob

I also discovered the single screw that holds the rotor mounting plate to the distributor shaft was also loose. Just more things to add to the maintenance checklist. Thanks for all the suggestions to keep the screws tight.

quote:

Originally posted by Joe C:
I also discovered the single screw that holds the rotor mounting plate to the distributor shaft was also loose. Just more things to add to the maintenance checklist. Thanks for all the suggestions to keep the screws tight.

If you want to keep the screws tight don’t be second in line!