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1994 Corvette coupe opti-spark replacement

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Old 04-02-2014, 12:35 PM
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AZMike
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Default 1994 Corvette coupe opti-spark replacement

Getting ready to replace opti-spark. I have water pump pulled already. To remove the crank shaft pulley. Will the pully allow me to remove the bolts without using a special tool to hold it in place. Will I need a puller to remove the pully once its unbolted. Also do I need to mark the pully so that it is reinstalled in the same position.

Thank you guys for all your help.
Old 04-02-2014, 01:50 PM
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jaa1992
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Mark the pulley
Remove the 3 bolts, if you are lucky it will slide off'
if not, from underneath a long block of wood, put it against the pulley, whack it hard with a hammer. Use the center bolt (helps to have a second person here) rotate about 60*, whack it again. Keep rotating until it pops off.
r&r the opti
Clean the pulley and apply some anti-sieze, bolt it back on
Old 04-02-2014, 09:43 PM
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AZMike
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Originally Posted by jaa1992
Mark the pulley
Remove the 3 bolts, if you are lucky it will slide off'
if not, from underneath a long block of wood, put it against the pulley, whack it hard with a hammer. Use the center bolt (helps to have a second person here) rotate about 60*, whack it again. Keep rotating until it pops off.
r&r the opti
Clean the pulley and apply some anti-sieze, bolt it back on
Thank you
Old 04-03-2014, 12:19 PM
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MarkP
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Also, check here:

http://www.corvetteactioncenter.com/...optispark.html
Old 04-03-2014, 02:52 PM
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STL94LT1
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Reinstalling the pulley can't go wrong. The bolt holes are slightly offset so it will only install in one position.
Old 04-08-2014, 01:49 PM
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AZMike
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Originally Posted by jaa1992
Mark the pulley
Remove the 3 bolts, if you are lucky it will slide off'
if not, from underneath a long block of wood, put it against the pulley, whack it hard with a hammer. Use the center bolt (helps to have a second person here) rotate about 60*, whack it again. Keep rotating until it pops off.
r&r the opti
Clean the pulley and apply some anti-sieze, bolt it back on
Stupid question I should have asked. What is the best way to stop turning while removing the cam shaft pully.
Old 04-08-2014, 03:30 PM
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AZMike
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Stupid question I should have asked. What is the best way to stop cam pulley from turning while removing the cam shaft pully.mounting bolts?

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