Is this Optispark dead?
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 2,295
Likes: 14
From: Grand Sport #82
Is this Optispark dead?
When I did my cam swap, I inspected my optispark, and found this (shown in the pictures) There was little oil, not much in the optispark, but the rotor was halfway detached. Since I had to get the car roling and out of my friends shop I had no other options as assemble the car again with the rotor repaird with epoxy glue as a shorttherm sulution.
Today I drove a longer drive with the new cam, on the stock tune, and I get some missfires at low rpms, could this be due to my Optispark or the stock tune I have. I get code 300, the car is stumbling also sometimes when I get on it.
I also had some missfire problems before my cam swap, but I am not sure how a Lt4 with a Hotcam SHOULD drive on the stock tune.
Here is the half lose rotor lead
There is some tear in the leads here aswell
There was also some play in the opti beaing..
SO.
How does a dying Optispark feel?
How should a LT4 with a stock tune and Hotcam Drive?
Today I drove a longer drive with the new cam, on the stock tune, and I get some missfires at low rpms, could this be due to my Optispark or the stock tune I have. I get code 300, the car is stumbling also sometimes when I get on it.
I also had some missfire problems before my cam swap, but I am not sure how a Lt4 with a Hotcam SHOULD drive on the stock tune.
Here is the half lose rotor lead
There is some tear in the leads here aswell
There was also some play in the opti beaing..
SO.
How does a dying Optispark feel?
How should a LT4 with a stock tune and Hotcam Drive?
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
That cap and rotor have seen better days. What was loose on the rotor, the 2 torx bolts or the metel contactor ???? You said you had to epoxy something......use loctite on the screws......but if you had to epoxy the metel contactor due to plastic tabs not holding it in place, time to replace rotor/cap.
What kind of Opti is that anyway ???
What kind of Opti is that anyway ???
Le Mans Master
Joined: Dec 2004
Posts: 5,789
Likes: 8
From: Myrtle Beach SC
St. Jude Donor '05-'06
Drifting
Joined: Nov 2005
Posts: 1,324
Likes: 5
From: Charlotte NC
If you could feel play in the rotor bearing, I'd replace the entire unit. That's probably what started the abnormal wear against the cap, which in the long run loosened the rotor.
Mine showed exactly your symptoms and it's now in pieces on my bench. Maybe I'll make a clock out of it.
Mine showed exactly your symptoms and it's now in pieces on my bench. Maybe I'll make a clock out of it.
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
Stock Opti Insurance
Before I install my new optispark I'd like to prevent any future problems. What type of fasteners are those it is sealed with? Tool? What parts need the locktite. High strength? or Medium?
Thanks
Thanks
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
You can get a 6 piece deep wall "External Star(torx) Socket Set" from Harbor Freight. The Opti uses size E4. Can't beat it for $7
http://www.harborfreight.com/cpi/cta...emnumber=95178
The 2 normal torx rotor screws should use locktite "red". I would think the "blue" medium would also be fine, I just use "red" . Dealers choice. It would be easier to replace a rotor in future if you use the medium blue stuff. I am not sure why these 2 screws do not have ""star" lock-washer considering the high rotational spin and vibrations.
Last edited by MikeC4; Feb 16, 2009 at 11:20 AM.
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
The Opti unit is sealed with 4 "inverse" torx screws.
You can get a 6 piece "External Star(torx) Socket Set" from Harbor Freight. The Opti uses size E4.
The 2 normal torx rotor screws should use locktite "red". I would think the "blue" medium would also be fine, I just use "red" . Dealers choice. It would be easier to replace a rotor in future if you use the medium blue stuff. I am not sure why these 2 screws do not have ""star" lock-washer considering the high rotational spin and vibrations.
You can get a 6 piece "External Star(torx) Socket Set" from Harbor Freight. The Opti uses size E4.
The 2 normal torx rotor screws should use locktite "red". I would think the "blue" medium would also be fine, I just use "red" . Dealers choice. It would be easier to replace a rotor in future if you use the medium blue stuff. I am not sure why these 2 screws do not have ""star" lock-washer considering the high rotational spin and vibrations.
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Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Last edited by MikeC4; Feb 16, 2009 at 11:32 AM.
