Average life span for Carrera distributor cap & rotor, and plug wires
 

I just checked my distributor cap and found carbon on the terminals after 30,000mi. How do you know when it's time to replace? Rotor doesn't look too worn after same 30,000mi. Wires seem ok, no miss-fires, and have 127,000mi. but how do you know when they are done?

at 30Kmiles, it's time. There're cheap.

When in any 'doubt' change 'IT' with all that time and wear. The clearence between the rotor and cap could be excessive.

If the wires are stock replace them. The rest of the stuff: plugs, wires, rotor, cap are relatively cheap. I replace mine every winter.

Hey Brownman,

Most people on this forum ask intelligent questions ... If you don't have an intelligent answer
please keep your smart ass remarks for yourself ...

16 posts ... Have a great day as well !!!

Cheers !
Phil!

Quick check of the 16 posts--the guy's a troll.:mad:

At 30,000 it is time. Rotor is cheap and distributor cap is not what I call cheap but is definitely time to replace. Just good maintenance to replace them. Plugs while your at it...:cool:

I do my plugs, cap and rotor whenever I adjust the valves. about every 10k. wires.. i dont know... 127k sounds like alot...

When I first bought my car Magnacor wires were recommended by Steve at Rennsport, I put them on and have had no issues for 50k miles. Spark plug wires are a thing I like to have the best I can make or find. I change plugs, cap and rotor when I get to the point of not remembering when I did it last. The frequency is changing over time so I can't make a good recommendation. I probably over maintain.

Ya a frickin' carpet salesman. Time to DELETE that account Mr. Moderator....

I just replaced mine at 14k miles and said to myself that it looked like it'd be best to replace them at about 10k. I read in Bentley where you can measure the resistance of the rotor and it should be about 1 kohm. I measured mine and it was 1200 ohms so sure enough it was ready to be replaced.

douche nozzle

Its the wires I always wonder about, they are not cheap. Every 60k would seem reasonable?

Beru stranded copper wires and insulation never wear out, but the end terminals tend to corrode and the resistor ends go bad.

Magnacor wires, on the other hand, seem to eliminate all those problems.

Whats the symtoms of the resistors going bad. Is it potential signal breakup at high revs.

Is there any way to detect bad resistors?

Thanks,

A miss is the most common symptom and an ohm meter might be helpful in finding which one has gone bad.

It's deleted.

If the ends unscrew, would disassembly and a cleaning be worth one's while?

That can sometimes be a PIA when the corrosion is so bad, they fail to unscrew easily causing the terminals come off the wires. To make things worse, how could you remove the corrosion trapped inside the crimp without cutting off the terminal and re-crimping a new terminal?

Personally, I'm all in favor of eliminating all these problems with the installation of your basic, seemingly everlasting, low maintenance, OEM proven, cost effective carbon core ignition cables.


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Cheers,

Joe

I change my distributor cap and rotor every 6K,..how's that? So what?

Doyle