C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

problem- double roller - urgent!!!

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Old Oct 11, 2004 | 05:16 PM
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Default problem- double roller - urgent!!!

i have the cloyes double roller timing gear- anyway i am trying to get it put on my 92 lt1. here is the problem

the factory setup has 3 gears- small, large,and one for waterpump- ok i bought an electric waterpump so that solves the problem with the 2 gears that the cloye has.

on the large gear of the factory one - in the center there is a threaded spot where i believe a bolt connects to the cool pack.

on the cloyes there isnt anyway to connect this.

Is this just a problem with the 92lt1 ? or am i missing something


will it be ok to use the factory timing set?
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Old Oct 11, 2004 | 05:29 PM
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Originally Posted by reed62783
.

on the large gear of the factory one - in the center there is a threaded spot where i believe a bolt connects to the cool pack.

on the cloyes there isnt anyway to connect this.

Is this just a problem with the 92lt1 ? or am i missing something


will it be ok to use the factory timing set?
"cool pack" ????? I'm ready to learn something.
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Old Oct 11, 2004 | 05:36 PM
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I don't believe you use the middle gear anymore. Someone else will chime in I'm sure... but, I believe the waterpump gear get's pulled out and you only use the two Cloyes gears.
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Old Oct 11, 2004 | 05:41 PM
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i wish i had pictures so i could show what i was talking about-

the big gear on the cloyes has a hole in the center about 3/4 an in in diameter. the factory one has a spot where a bolt screws into it at the same spot. this then connects to something else
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Old Oct 11, 2004 | 05:51 PM
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Ok, I misread your post. What's a cool pack????
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Old Oct 11, 2004 | 05:52 PM
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On my 94 I had to upgrade to a 95 newer timing cover and opti to use my gearset (dynagear or dynatech). Not sure what you mean by coolpack though?!? the waterpump gear I just tapped out of the block and disgarded.
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Old Oct 11, 2004 | 05:54 PM
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Originally Posted by reed62783
i wish i had pictures so i could show what i was talking about-

the big gear on the cloyes has a hole in the center about 3/4 an in in diameter. the factory one has a spot where a bolt screws into it at the same spot. this then connects to something else
I'm not positive, but I think to use a Cloyes with the early LT1 you have to convert to the later front cover and opti. Doesn't the early opti have some type of drive that bolts to the cam gear? The later one uses a longer cam pin that sticks through the gear to drive the opti. My '95 is the only one I've had experience with. Enlighten us, someone!
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Old Oct 12, 2004 | 10:16 AM
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You need to contact forum member Nathan Plemmons. He has a Cloyes double roller timing chain and an electric waterpump on a 92. He will help you.
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Old Oct 12, 2004 | 10:59 AM
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In the center of the large gear which attaches to the cam with three bolts is a splined hole. This is where the Optispark is driven from. There is a sort of "keyway" that only allows the opti to go in one way.

It doesn't sound like the new timing set is going to work if it doesn't have that opti drive setup.

I just finished putting my timing cover back on last night in my 92 LT1.

I'm doing the change to the dynaspark and the electric water pump.
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