How long does it take to change an Optispark?
If you just do the water pump and the opti-spark distributor, then it is about 4 hours.
How do you test Optispark?
to diagnose it. Check to see if you have a signal from the PCM to the ICM on the white wire. While someone cranks it over, check the white wire to ground for 1-4 volts on the AC scale. If that’s there, the problem is between the ICM and the coil.
How long does a LT1 engine last?
cab companies all over this country will tell you that a well maintained LT1 will last upwards of 500K miles.
What years did Corvette use Optispark?
Optical trigger. 92-94 is Optispark 1 EFI. 95-97 is Optispark 2. Year options – 1995-1997 LT1/LT4 350 V8 or 1992-1994 LT1 350 V8.
Where is the Optispark on a LT1?
GM’s OptiSpark is an optically triggered ignition distributor used on the LT1, LT4, and L99 (4.3L V-6) engines. It is mounted on the front of the engine, above the crank snout and behind the water pump.
Where is the distributor on a LT1 engine?
How does the Optispark work?
In contrast, the Opti-Spark uses multiple optical sensors working in conjunction with a two-track slotted disk to have the ability to identify in one-degree increments the position of the crankshaft.
How does an OptiSpark work?
Where is the OptiSpark on a LT1?
How much HP does the LT1 really have?
The new Gen 5 LT1 – the third Small Block to carry the moniker – displaces 6.2L (376 cu. -in.) and delivers an estimated 450 horsepower (335 kW).
What does the Optispark distributor do?
This distributor was installed on : The concept of the Optispark was a great idea. It allowed for very accurate control of the spark to each plug. The cap was the LED/disc setup. There were 2 LED’s that controlled the spark and timing of the engine.
Should I replace just the cap on my Opti Spark?
Stop replacing just the cap. Bite the bullet and buy a GM complete opti-spark. I did replace the whole thing last time. it is was an accel and a piece of crap. Been running an MSD 6A for 10 years. No problems. Stock opti. WOW that’s good.
Can You bolt a 1995 Optispark to a 1992 LT1?
You CANNOT bolt a 1995+ Optispark up to a 1992-1994 LT1. The CAM is different. You could change the CAM, timing cover, CAM gear, etc but this gets expensive, and is very labor intensive. the solution? 1. Change the Optispark out and be up and running again.
How do you remove the water pump from the Optispark?
Remove the rubber intake bellow. Remove the upper radiator hoses. hose from the water pump. connections from the Optispark and water pump. out of the way, and loosen the accessory belt. Remove the water pump. There are 6 bolts holding it in place.