8N rotor

Aaron Rice · Mar 27, 2014

I change points rotor and cap on my side mount distrubitor and now it has broken 4 rotors, WHY?

Bruce (VA) · Mar 27, 2014

--- cheap off-shore junk rotors

--- you're missing the clip under the rotor

--- rotor not fully seated on the shaft

--- cap not seated correctly

Pick the reason you like!
75 Tips

souNdguy · Mar 27, 2014

ditto what bruce said.

did you seat the cap and cover correctly.. and do you have the clip

pconnie · Mar 27, 2014

i got rotors from cnh. they were made in mexico..all were offset..put on dist. turned by hand would hit contacts on one side.

John Smith8N · Mar 27, 2014

Have seen/heard of numerous caps lately that have the contacts machined off center. Big rotor gap on one or two contacts, hits on one or two contacts. More imported junk.

mhb@ufe · Mar 27, 2014

I've found that a lot of the rotors are fitting tight and require extra force to push them down far enough to clear the cap as well.

Mark

NNP · Mar 28, 2014

(quoted from post at 10:16:01 03/27/14) --- cheap off-shore junk rotors

--- you're missing the clip under the rotor

--- rotor not fully seated on the shaft

--- cap not seated correctly

Pick the reason you like!
75 Tips

Bruce has got ya covered.
Like to add that with todays parts, a very slow, by hand, turning of the engine watching carefully for any cap movement/twitch =stop....is pretty much mandatory.
Also, the days of replacing everything in a good tune-up are over...for me. When replacing worn out points, if the old condenser, rotor and cap are working and not broken,
I clean them up and leave them alone.
New import junk.....if that's all I have, the rotor tip gets some
sanding work. Will the rotor-cap gap be factory perfect? no, but it will run without breaking stuff

clemsparks · Mar 28, 2014

I also had a rotor break recently (first one for me). I just assumed it was poor fit of the distributor cap to the distributor body that caused it. Hard to say, though.

It broke some of the plastic off the rotor, and spun the contact on the rotor around its rivet some.

The problem manifested as backfiring, wheezing, low power, etc.

When I found the problem, I twisted the contact back into the proper position on the rotor and reinstalled to verify that was the problem.

I picked up a rotor at NAPA for $6. I don't recall if I saw where it was made (I'll check). It will be installed soon.

Just another story to add to the list.

Clem

8N rotor

Aaron Rice

New User

Bruce (VA)

Well-known Member

souNdguy

Well-known Member

pconnie

Member

John Smith8N

Member

mhb@ufe

Well-known Member

NNP

Member

clemsparks

Member

Similar threads