Opti Dowl pin
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Joined: Oct 2004
Posts: 41
From: DFW
Opti Dowl pin
The opti dowl pin it not line to line, depending which way you install the pin it is eather advanced or retarded a little. Which way is correct??
A friend of mine had it the wrong way, and his car wouldn't start, we searched for the problem for weeks, and finally figured out that it was the opti dowl.
A friend of mine had it the wrong way, and his car wouldn't start, we searched for the problem for weeks, and finally figured out that it was the opti dowl.
Registered User
Joined: Dec 1969
Posts: 4,950
From: San Diego, CA
Re: Opti Dowl pin
The opti drive pin only has one correct location; see photo from Shoebox's site:
http://shbox.com/1/opti_back.jpg
http://shbox.com/1/opti_back.jpg
Registered User
Joined: Dec 1969
Posts: 27,727
From: Little Rock, AR
Re: Opti Dowl pin
I don't understand much of what you said, but the dowel pin sits in the cam only one way and it is supposed to go in only one place on the opti. There is no advance or retard.
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Registered User
Joined: Oct 2004
Posts: 41
From: DFW
Re: Opti Dowl pin
SIG is wrong for my car, so i didn't post with it
ITs a 94 Z-28 NOT a 97
sorry for the confusion
On the 93-94 opti's they had a short dowl/ splined pin, on both sides they had two pins right next to each other so you couldn't install it wrong, BUT if you turn the pin around and take the side that was in the motor and put into the opti the car wont start, if i recall one side of the splined dowl is offset from the other side, make it advanced or retarded, if you turn it around. Not sure which way is correct?
ITs a 94 Z-28 NOT a 97
sorry for the confusion
On the 93-94 opti's they had a short dowl/ splined pin, on both sides they had two pins right next to each other so you couldn't install it wrong, BUT if you turn the pin around and take the side that was in the motor and put into the opti the car wont start, if i recall one side of the splined dowl is offset from the other side, make it advanced or retarded, if you turn it around. Not sure which way is correct?
Last edited by Split; Jan 13, 2006 at 05:25 PM.
Registered User
Joined: Dec 1969
Posts: 4,950
From: San Diego, CA
Registered User
Joined: Dec 1969
Posts: 27,727
From: Little Rock, AR
Re: Opti Dowl pin
Originally Posted by Split
SIG is wrong for my car, so i didn't post with it
ITs a 94 Z-28 NOT a 97
sorry for the confusion
On the 93-94 opti's they had a short dowl/ splined pin, on both sides they had two pins right next to each other so you couldn't install it wrong, BUT if you turn the pin around and take the side that was in the motor and put into the opti the car wont start, if i recall one side of the splined dowl is offset from the other side, make it advanced or retarded, if you turn it around. Not sure which way is correct?
ITs a 94 Z-28 NOT a 97
sorry for the confusion
On the 93-94 opti's they had a short dowl/ splined pin, on both sides they had two pins right next to each other so you couldn't install it wrong, BUT if you turn the pin around and take the side that was in the motor and put into the opti the car wont start, if i recall one side of the splined dowl is offset from the other side, make it advanced or retarded, if you turn it around. Not sure which way is correct?
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