Cap and Rotor indexing question...
Thread Starter
Staging Lane
Joined: Jan 2006
Posts: 61
Likes: 0
From: Morgan Hill, CA.
Cap and Rotor indexing question... I just got my MSD opti today 
My question is, when you replace the rotor, is is splined onto the opti or do you really have to remember the exact location of where the old one was? I'm concerned because about three years ago, I had my cap and rotor replaced, and ever since, it runs right in the middle on the temp gauge on the freeway. (it used to run just about 3/8 of the way up). If I have any doubts, what is the 100% sure way to know that it is correct? Thanks in advance to anyone who could help me out 
My question is, when you replace the rotor, is is splined onto the opti or do you really have to remember the exact location of where the old one was? I'm concerned because about three years ago, I had my cap and rotor replaced, and ever since, it runs right in the middle on the temp gauge on the freeway. (it used to run just about 3/8 of the way up). If I have any doubts, what is the 100% sure way to know that it is correct? Thanks in advance to anyone who could help me out 
