Destroyed Opti *PICS*
Destroyed Opti *PICS*
I replaced my opti this weekend. The unit I installed was a remanufactured part (BIG MISTAKE) with an MSD cap/rotor kit.
The MSD components bolted right up to the reman core. I turned the dowel gear to check for clearance, and she ran smooth as silk, so I went ahead with the install.
I drove the car roughly 40 miles before it started backfiring, and eventually stalled out on me, and threw the DTC Lo-Res Fail code again, which of course means, DEAD OPTI.
Curious how it could have crapped-out already, I take the opti out, and this is what i see...

The dowel gear was just a couple mm too long. I couldn't use the factory drive pin, as the reman core had it's own pin installed, and was non-removable.
When I bolted the opti to the front of the motor, the extra lengh in the pin pushed the rotor up, into the cap, and the damage is clear.
Let this be a lesson to everyone purchasing a new Opti, and not sure of which part to buy. STAY AWAY FROM CHEAPER REMAN PARTS!!!
The MSD components bolted right up to the reman core. I turned the dowel gear to check for clearance, and she ran smooth as silk, so I went ahead with the install.
I drove the car roughly 40 miles before it started backfiring, and eventually stalled out on me, and threw the DTC Lo-Res Fail code again, which of course means, DEAD OPTI.
Curious how it could have crapped-out already, I take the opti out, and this is what i see...

The dowel gear was just a couple mm too long. I couldn't use the factory drive pin, as the reman core had it's own pin installed, and was non-removable.
When I bolted the opti to the front of the motor, the extra lengh in the pin pushed the rotor up, into the cap, and the damage is clear.
Let this be a lesson to everyone purchasing a new Opti, and not sure of which part to buy. STAY AWAY FROM CHEAPER REMAN PARTS!!!
I replaced my opti this weekend. The unit I installed was a remanufactured part (BIG MISTAKE) with an MSD cap/rotor kit.
The MSD components bolted right up to the reman core. I turned the dowel gear to check for clearance, and she ran smooth as silk, so I went ahead with the install.
I drove the car roughly 40 miles before it started backfiring, and eventually stalled out on me, and threw the DTC Lo-Res Fail code again, which of course means, DEAD OPTI.
Curious how it could have crapped-out already, I take the opti out, and this is what i see...

The dowel gear was just a couple mm too long. I couldn't use the factory drive pin, as the reman core had it's own pin installed, and was non-removable.
When I bolted the opti to the front of the motor, the extra lengh in the pin pushed the rotor up, into the cap, and the damage is clear.
Let this be a lesson to everyone purchasing a new Opti, and not sure of which part to buy. STAY AWAY FROM CHEAPER REMAN PARTS!!!
The MSD components bolted right up to the reman core. I turned the dowel gear to check for clearance, and she ran smooth as silk, so I went ahead with the install.
I drove the car roughly 40 miles before it started backfiring, and eventually stalled out on me, and threw the DTC Lo-Res Fail code again, which of course means, DEAD OPTI.
Curious how it could have crapped-out already, I take the opti out, and this is what i see...

The dowel gear was just a couple mm too long. I couldn't use the factory drive pin, as the reman core had it's own pin installed, and was non-removable.
When I bolted the opti to the front of the motor, the extra lengh in the pin pushed the rotor up, into the cap, and the damage is clear.
Let this be a lesson to everyone purchasing a new Opti, and not sure of which part to buy. STAY AWAY FROM CHEAPER REMAN PARTS!!!
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Formula Steve
LT1 Based Engine Tech
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Sep 19, 2023 08:31 AM



