Opti question
No there is a pin that you can use to line it up unless you have a spline drive opti then it will only fit in the spline one way. If you have the pin on the came make sure you get it locked into the pin. if you can move the rotor at all when its slid into place then you missed the pin and have to retry to get it in.
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No there is a pin that you can use to line it up unless you have a spline drive opti then it will only fit in the spline one way. If you have the pin on the came make sure you get it locked into the pin. if you can move the rotor at all when its slid into place then you missed the pin and have to retry to get it in.
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From: Lincoln NE
It does not need to be at tdc.
If someone tells you it does they don't know their way around an lt1.
Just slide the opti onto the dowel on the end of the cam lining it up to the square slot of the opti. It can easily be distinguished from the other two slots.
If someone tells you it does they don't know their way around an lt1.
Just slide the opti onto the dowel on the end of the cam lining it up to the square slot of the opti. It can easily be distinguished from the other two slots.
You just gotta stretch your back before hand, because you will be laying over the nose of the car trying to slide it in, nope, turn it a **** hair, try again, nope, another **** hair, nope, etc. just don't force it, it will slide in easy when it's lined up right.
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right. The opti spark has two slots on the back, one with a slit above the slot, this is the correct spot for the dowel pin to go into. There's TDC for cylinder #6 and TDC for cylinder #1. I have read and read and read people saying there's no need to have find TDC. Even the LT1 experts, but the 7 times I've had my opti off I've always hit TDC on the #1 cylinder and aligned the slot on the back of the opti to the #1 TDC spot for the dowel pin to go into. The very first time I did this my motor wouldn't even fire up because the timing was off... Another rookie mistake was I didn't test fire it before putting the waterpump and EVERYTHING ELSE on... Not to mention letting the RTV cure a whole 24 hours just to later check that it didn't even work... 
not saying I'm right, but it just never worked out for me to just "put the opti on" doesn't mean I don't know my way around an LT1..... LS1 Tech Stories
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