[rpoz-29]

I'm looking at a 1993 Corvette 6 speed. It's a two owner car, the second owner being an old friend of mine. He passed away in January of 2015, and his sister has decided to sell it. It's black on black with a leather interior, and only 17,000 miles. I can get it pretty cheap, but wondered if there were any well know trouble spots with that year. Not planning to autocross it, just a street ride.

[CrashTestDummy]

We've had great experience with our LTXs, too, and like Rob, knock on wood!

The only time we had any issues was when I _changed_ out the opti chasing a poor running issue on our 95 9C1. While I used NOS Delco parts, the thing failed within a couple of months of the install. Given the crap that's out there, even from the well-known vendors, I threw the old one back in and it was working fine when we sold the car a couple of years later.

Yes, they ARE a PITA to get to, and to do R&R on them, you'll need some specialized tools. The biggest problem appears to be seepage from the water pump which is driven by a shaft that goes through the opti into the pump. Our '96 SS has a Meziere electric pump which allowed the drive shaft to be removed and the drive holes plugged. Other than some dicey wiring for the pump, I've had no issues with the Meziere pump, but I suggest you get two if you're going to depend on the car.

Our other two LT cars, the 95 Camaro and the 95 SS 'garage queen' have their original pumps and optis.

Not sure if the 93 Vette got the vented opti, since that update didn't happen on the B-body until '95, but it's an easy update.

There are a couple of different mods that use just the optical sensor for the trigger, and run LS-style coil packs, which appear to be a bit more reliable. Still, the weak point here is the optical sensor, so it is still a common failure point. Moving to the coil pack ignition, though, does reduce the amount of high-voltage arcs in the opti housing, which will reduce the ozone there, and make the environment in the housing a lot more hospitable.

Once you've done it a couple of times, you can get the opti off in about a half hour taking your time. I find draining the coolant, and refilling it/burping it when done to be the worst parts of the job.

This post has been edited by CrashTestDummy: Jul 15 2018, 05:17 PM