Hey,
I hope someone can help out with this one.

As I was driving home today my car started bopping and snarling (miss firing)....

When I got I home I tightened the plugs (They were lose) and pulled the rotor cap off and found a burnt up rotor button as shown...could load photo...bummer

Has anybody experienced this before? If so, what is causing it and how do you fix it?

Engine Details:
2.5L Four
44 Webers
MSD box & Coil & Wires
Engine no longer has points, I can't remember the brand name of the electronic points


Thanks,
Russ
turpin0801@aol.com
803-606-7269

replace the rotor and cap.

Rich

a loose plug will cause a poor ground conection and will create a higher voltage to "jump the plug gap. that extra voltage or "current" can cause failures with the cap and rotor. this condition could also hurt the coil.

ONLY BOSCH with any modern multiple-spark CD ignition.

If you MUST buy something else - f'rinstance your car died in nowhere and the only available parts store doesn't have what you need - buy all they have - you'll need 'em.

Even with a Bosch, carry a spare.

I had a MSD-6 -explode- a non-Bosch rotor, left me stranded.

The lookalike stuff was designed around the bottom-end of the original specs, and even the Bosch was never designed for the energy carried by modern MSD's and pulse transformers...

Thanks guys...This seems like what exatly happened...

Hey the Carolinas Porsche club is hosting a car show at Pine Island, Lake Murray South Carolina on April 17th. Come on out and enjoy some cars and food

Thanks again!

R

ArtechnikaA, what are you using for your cap and rotor?

Thanks,
Russ

IME, cap and rotor life are severely compromised when an HE ignition setup is used. The Cap'n

In those days it was an E-Prepared ur-GTI and my FLAPS had their own brand of rotors made God-knows-where. I knew I shouldda bought a Bosch but my local sources didn't have them and the Internet was new... Nowadays there really is no excuse not to be prepared with standard maintenance parts.

The Porsche engine is 'under construction' but when complete I will be using this:

Yup, I agree.
They were designed for good ol' Kettering ignition and are not designed for HE.
CARRY SPARES.