Opti Spark Replace W/Pics !

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Opti Spark Replace W/Pics !

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Corvette >> Corvette Models >> Corvette C4 Forum >> Opti Spark Replace W/Pics !

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Opti Spark Replace W/Pics ! - 6/24/2008 5:07:58 AM

larry00

Posts: 65
Joined: 3/2/2007
Status: offline

Here it is guys a great post from a fellow car enthusist web site .
I used it on my Hot Rod and it worked great.
Just make sure you replace both the seals and it is the best time to replace the wires and water pump.
Follow seal lube or not lube instructions and be careful putting the OPTI on , you will know when it goes in correctly .
I saved enough dough to buy a new Stereo system !

http://www.impalasuperstore.com/naisso/Forum2005/topic.asp?TOPIC_ID=30984&whichpage=1

Oh yeah I have an aftermarket Balancer so I had room to pull Opti without taking mine loose or removing it so you would want to check out how much trouble that operation will be.
I read some engines have to be unbolted and jacked up but My 95 had a hole that you could run a inside puller through that is not visable from above or below.

_____________________________

95 Torch Red Coupe my first Vette

95 white coupe 383 LT 4 ,Holly,Accel , F.A.S.T. T.P.I.S powder coated , forged crank, H beams , JE Blower pistons, ported heads , Dana 44 373 gears,Artic White Gel coated , Black Int. , American Racing

Post #: 1

RE: Opti Spark Replace W/Pics ! - 6/24/2008 7:15:51 PM

cwb

Posts: 1508
Joined: 5/13/2007
From: eastern NC
Status: offline

good link.

But now since I saw it, well, maybe I still won''t need it.

_____________________________

Don''t know nuthin''; ain''t never got paid for wrenchin''...
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(in reply to larry00)

Post #: 2

RE: Opti Spark Replace W/Pics ! - 7/10/2008 2:40:14 PM

larry00

Posts: 65
Joined: 3/2/2007
Status: offline

Opti Spark is not the ogre it''''s made out to be but research into extending their life by simple common sense things such as converting to the late model opti with the vacuum hoses when you get overhauled or a new cam on a 94 and earlier LT1 .

And putting in a new water pump with the weep hole drilled out and threaded with a hose attached that directs any weepage down past the Opti.

The Opti from the factory will give good dependable service for 250,000 miles with a vast improvement in spark technology over HEI or points.
No I don''''t know why GM did not take care of the weep hole issue but of course it was a changeover engine with LS on the horizon.
To clear up a little confusion about the vacuum hoses their principle assignment is to suc out the gasses generated by the spark process of which ozone in small amounts is one of them.
By sucking out the ozone and not allowing it to build up it increases the life of the parts that could be corroded by the obnoxious gas.
Moisture is a far secondary problem to the ozone buildup.
It is a good system and very precise so don''t bad mouth it for outside reasons it can''t correct and GM did not see fit to correct.

_____________________________

95 Torch Red Coupe my first Vette

95 white coupe 383 LT 4 ,Holly,Accel , F.A.S.T. T.P.I.S powder coated , forged crank, H beams , JE Blower pistons, ported heads , Dana 44 373 gears,Artic White Gel coated , Black Int. , American Racing

(in reply to cwb)

Post #: 3