96 LT1 Optispark help
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Teching In
Joined: Feb 2011
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From: Florida
96 LT1 Optispark help I replaced my water pump yesterday because it was leaking for a few days. While I had the whole thing apart I took the optispark distributor off to take a look at it. I put it all back together and now the car is popping when i give it short throttle bursts and slightly popping while idling. But it runs fine if I keep it at a steady rpm above idle. I havent drove the car yet though. I broke some of the plastic on the optispark that the coil wire connects to. Could it not be getting a good connection and cause the car to make popping noises? Also is there a way to put the optispark distributor on wrong or does it only fit one way? Is it possible that i slightly changed the timing by taking it off and not putting it back the same way it was?
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Well long as ur #1 piston is at tdc and the little pin on the distibutor is at 10 o'clock when u put it bak on, there's no way to change the timing on the lt1 cause the marmoic balancer on goes on 1 way, when u changed the water pump did u make sure not to leak any water onto the opti?cause that will give u a misfire and that's usualy what makes that popin noise in ur intake manifold.
Well long as ur #1 piston is at tdc and the little pin on the distibutor is at 10 o'clock when u put it bak on, there's no way to change the timing on the lt1 cause the marmoic balancer on goes on 1 way, when u changed the water pump did u make sure not to leak any water onto the opti?cause that will give u a misfire and that's usualy what makes that popin noise in ur intake manifold.
You can install the opti on the engine no matter what its position is in the firing cycle. It doesnt have to be a certain way. Its "supposed" to only go on one way with the dowel pin but people sometimes can force it in the wrong slot on the back. There is only one slot on the back of the opti that will fit the dowel.
If you didnt force it on then something got messed up when you took it apart or something isnt connected properly. I dont know. thats why you dont mess with it, EVER! LOL
Be sure you didn't get your ignition wires mixed up. The opti goes on one way but if the dowel pin wasn't aligned properly then it wouldn't seat properly against the timing cover.
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On The Tree
Joined: Sep 2010
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From: Dunedin, Florida
Well long as ur #1 piston is at tdc and the little pin on the distibutor is at 10 o'clock when u put it bak on, there's no way to change the timing on the lt1 cause the marmoic balancer on goes on 1 way, when u changed the water pump did u make sure not to leak any water onto the opti?cause that will give u a misfire and that's usualy what makes that popin noise in ur intake manifold.
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Verdad Gallardo Thread Starter
Teching In
Joined: Feb 2011
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From: Florida
It turns out that the coil wire wasn't getting a good connection. It runs fine but it is leaking oil... Is there a gasket or something behind the optispark or something? How do I fix the oil leak?
Thread Starter
Teching In
Joined: Feb 2011
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From: Florida
I guess that I need to rip it all apart for a 3rd time. By any chance do you know the part numbers? What should I ask for at the auto store? Just say that I need the timing chan cover seals?
Thread Starter
Teching In
Joined: Feb 2011
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From: Florida
Im sure that there is a guide somewhere. But basically you take off the water pump and harmonic dampener then there are 3 10mm bolts that hold the opti on.
On The Tree
Joined: Sep 2010
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From: Dunedin, Florida
Because the "seal" is on the front cover of the engine. There are 3 seals on the front cover...1 for the water pump drive; 1 for the opti; and 1 for the crankshaft.
