Distributor Cap, Rotor: Replacement Interval?
 

I had the Distributor apart this week and noted the rotor to have a rough, rusty appearance at the contact point. The points looked OK, and it runs well.

Relatively little soot and dirt inside. 134K miles on the set. Replace it?

Vehicle in Question is Teggy.

EDIT: I split this into 2 threads, one regarding the timing.

RH77