I want to get the cheapest thing that will work for awhile because I'm swapping the engine with an ls1 in the future and I don't want to dump a lot of money into this. . You may have to tilt the top out a little more since it will still hit the main shaft at the bottom. So I got to searching and since I order from Summit all the time, I figured I would give their brand dist. Now is the time to do it! It allowed road dirt, grime and water to attack the Optispark. The hose that has the filter and regulator is the vacuum supply. The outlet end goes to a piece of vacuum line and feeds thru the firewall or grommet near the upper door hinge into the engine compartment.
Remove the 3 bolts from the balancer. Just remember to cover the hole when you detail your engine. Reserve a long day to fiddle around. When you go to remove the middle bolt on the driver's side, you'll notice that to remove this bolt, you have to remove the electric air pump. Nothing like taking apart something brand new eh? I drilled out the remaining hole. It usually takes around four hours.
I washed the engine and killed the optispark. The conversion process is simple! The clip goes on the alternator bracket. Remove the remaining plug wires. Now, remove the three I think 10mm bolts that hold on the Optispark. Contrary to what many people believe, most spark errors actually occur at low speeds, especially starting, not at high rpm. I think I ruined mine anyway with another untoward procedure. You'll also notice that the Optispark will only slide off if two prongs are pointing up, and one pointing down.
You can rest assured that you will not need to make trips back and forth to the auto parts store to buy another little piece to finish the project. Just slip the gauze through the slot where the disc turns and slide it back and forth. The final touch is the installation of a vacuum ventilation hose assembly with the correct check and restrictor valves to prevent distributor cap damage. Well, yesterday was a rough day. Eventually a recall campaign led to all or most of the units being replaced. My car had been parked for a while 3 years to do some upgrades after I blew a head gasket.
The location of the Optispark. The final touch is the installation of a vacuum ventilation hose assembly with the correct check and restrictor valves to prevent distributor cap damage. That was all that was needed to make this one of the most failure prone components in Corvette history. Once the screws are out, and you remove the really small torx bolts holding the rotor on, the back just pops off. If they are old, you may want to replace them. This is by far the worst.
I did take the old one apart I'll have pics later but decided that with as much stuff as I had to take off that engine, I wasn't going to take the chance that I might have to do it all twice. Plug the remaining two holes with the sealer. The Haynes manual says you can simply pull it off without a puller. I am on my 3rd optispark in my 1994 Corvette and this time will sell the car when its fixed again. Refill the cooling system until it is full. The easiest way to remove them is to get an old Torx screw out of something and hold the screw with vice grips.
The mechanic and the gas station verified it was the optispark. I held the screw with vice grips and they unscrewed no problem. You may have to get under the car and use that 14mm socket and a breaker bar to turn the engine over a little until you get it lined up. As for cleaning the optical sensor, probably a little piece of sterile gauze dipped in alcohols would do. You may prefer to use a hobby paintbrush to cover seams better. Just make sure that you didn't blow off the hose look underneath when you are done.
So I took it back and went to somewhere else to get one they had in stock. I was not able to. But like I said after it was all said and done well worth it. I was on the fence about spending big money on an oem part, but saw the summit part much cheaper. You'll need new gaskets for installation. I am so greatfull I can trust Summit to be dependable! Installation is easy as the Dyna-Module mounts in the original factory location with no modifications. This Optispark kit includes all the pieces and attachments necessary to make the conversion, including manifold fittings, the vacuum hose assembly, and installation instructions.