95 lt1 timing while installing optispark
08-27-2009, 01:18 PM
#1
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95 lt1 timing while installing optispark my alldata is down how do i align the optispark or do i have to bring it to tdc or align it with the cam somehow? does anyone have the diagram from alldata or their own personal pictures or explaination?
08-27-2009, 01:40 PM
#2
The optispark can only go on one way. You don't need to bring the motor to TDC. Just make sure the cam pin/cam gear engages the correct slot on the optispark (it's the large slot of the cloverfield on the vented optispark, or the keyway on the non-vented optispark).
08-27-2009, 02:34 PM
#3
http://shbox.com/1/93-94_opti.jpg
http://shbox.com/1/opti_back.jpg
OP, since you have two different year LT1 Fbody's, you should put which year car you are working on in particular in every thread you start.
08-27-2009, 07:09 PM
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the unit came it was all together already cap and rotor and distribuitor already put together i did everything right just put it all together went to start it and it wont start. i hooked up a noid light to the injector it is working i hooked up a light to the spark plug wire its getting spark but it is not starting. any ideas? I did put it on right it slipped right on. it started today earlier when i moved the car now it wont
08-27-2009, 07:43 PM
#10
Any chance that you forgot to connect the opti harness or the connection for the coil and ICM? How about the three grounds that go to the coil?
08-27-2009, 08:07 PM
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it started before the new opti. the opti went right on i lined it up and it slid on. i checked all the connections i am going to double check in the morning as well as switch out the icm with the one that was on there before.
08-31-2009, 11:41 AM
#16
i always feared putting in an opti wrong, but then again i always wondered how it could go on wrong. the only way it could go in wrong would be for it to be +/- 120 degrees off, no? in order for it to slip on, the three cam bolt heads have to slip into their respective holes. it's not like the bolts can slip into the keyway or something. so that means the keyway would have to be off +/- 120 degrees. the opti can't just be a little bit off, can it? what i'm getting at, is if the opti went in wrong, there's no chance at all the car would start, right?
Last edited by mtedenajimenez; 08-31-2009 at 12:58 PM. Reason: spelling
08-31-2009, 11:54 AM
#17
Pretty much, mtedenajimenez. Mine started but would backfire/misfire like crazy. Turned out to be on wrong.
IMHO - any time I install an optispark moving forward, I'm going to remove the three male hex bolts that hold the cover on and hold onto the rotor itself while I line the optispark on. That way I know 100% without a doubt that the optispark went into the right slot.
IMHO - any time I install an optispark moving forward, I'm going to remove the three male hex bolts that hold the cover on and hold onto the rotor itself while I line the optispark on. That way I know 100% without a doubt that the optispark went into the right slot.
09-01-2009, 12:08 AM
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Pretty much, mtedenajimenez. Mine started but would backfire/misfire like crazy. Turned out to be on wrong.
IMHO - any time I install an optispark moving forward, I'm going to remove the three male hex bolts that hold the cover on and hold onto the rotor itself while I line the optispark on. That way I know 100% without a doubt that the optispark went into the right slot.
IMHO - any time I install an optispark moving forward, I'm going to remove the three male hex bolts that hold the cover on and hold onto the rotor itself while I line the optispark on. That way I know 100% without a doubt that the optispark went into the right slot.
03-01-2017, 05:50 PM
#20
assuming you hooked up all your wires right and the cam pin went into the right slot of opti (pic in link)...it should fire
http://shbox.com/1/opti_back.jpg
did you put on a AC Delco opti?
if answer is no....return it and buy a ac delco or delphi
http://shbox.com/1/opti_back.jpg
did you put on a AC Delco opti?
if answer is no....return it and buy a ac delco or delphi