Speedy

Some of you might remember this thread:

I Think My Engine is Shot

A couple of months ago I had a problem with my car and during the course of diagnosing it I decided to swap out my MSD distributor for a Chinese Opti from Ebay (the one with the black cover) just to be sure the MSD wasn't the problem. Hey, it seemed like a good deal - $68 and it looked just like an AC Delco unit, WTF right?

So I install it and the car runs fantasic. No problems - that is, for about 1000miles when the problem in the above link happened. Looked high and low and couldn't find what was wrong, but took off the opti and low and behold the BEARING WAS SEIZED in it. This apparently caused my timing to go all over the place, driving my ECM nuts and generally causing every sound imagineable.

For what I paid I won't bother exchanging the Chinese unit. It's not worth the postage and I won't install another one anyway. So I'll take it apart and post pics, just for fun. BTW, outside of the rotor and cap I don't recommend the Chinese optis.

shbox

No one else does, either.

RamAir95TA

iTrader: (2)

There's a reason why most everyone goes with OEM optisparks and not the foreign garbage.

airfix

iTrader: (30)

No Kiddin Buying a chinese opti, Is just asking for trouble.

xbcrguy182x

This is why I try to avoid any made in china auto parts.

Counted Out

iTrader: (6)

Does anyone know if the GM opti really has a Mitsubishi logo on the optical sensor? I know Mitsubishi makes it, but is their logo actually on it?

Jeep_junkie

My stock one had the diamond star Mitsubishi logo on it. I saw it when I replaced the stocker (bearing was going out).

Counted Out

iTrader: (6)

Thank you. I bought a used one that is supposed to be a GM unit, so now I know how to check.

buffman

iTrader: (9)

yes every GM Delco/Delphi I've ripped apart has the mistu logo on it.

robsquikz28

iTrader: (246)

x2 here...