LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Need help with opitispark

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Old Jun 23, 2005 | 06:36 PM
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jmac_98ls1's Avatar
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Default Need help with opitispark

i am gettin ready to do my first opitispark change for a friend of mine does anybody know where i can get a good step by step guide to install it.

thanks

jmac
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Old Jun 23, 2005 | 06:42 PM
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Yeah, put the car on a lift and start tearing stuff apart. It is a pain in the ***, but front crank pulley has to come off, radiator fans removed, water pump removed, and possibly one or two more brackets. I did it in about 5 hours with help from a friend, power tools, and a lift. Enjoy, it sucks.
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Old Jun 23, 2005 | 06:55 PM
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how do you go about setting the timing on it, as in the positioning of the dist.
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Old Jun 23, 2005 | 07:20 PM
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Originally Posted by jmac_98ls1
how do you go about setting the timing on it, as in the positioning of the dist.
What year car is it for? If its 95+ It will have the opti that is really easy to put on. Just slip it over the cam dowel in the only hole it goes on. Make it easy on yourself, and bring the crank hub to 12 oclock first.

www.shbox.com <--- good how to site for lt1's.
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Old Jun 23, 2005 | 07:41 PM
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Actually the 93 is the same way. The opti spark should have a mark in it or a one way fit. The darn thing won't go on unless you put it on right. I put an aftermarket one on a 93 z.
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Old Jun 23, 2005 | 09:32 PM
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Old Jun 23, 2005 | 09:58 PM
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As long as you don't move the crank, you won't have to time it. Just put the slot back in the same place.
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Old Jun 25, 2005 | 02:41 PM
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The splined shaft(opti shaft), has a particular flat tooth, on it.Just line that up with the "flat tooth" on the inside of the opti, and your fine...Its a 360* distributor,so just bolt it on, and your good..
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