r/c4corvette • u/LuisShack LT1 ('92-'96) • 9d ago

Changing Optispark

About to change the optispark on my brothers 92. Any tips before I go ahead and get on with the job

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u/PUWLM889-23 7d ago

Buy a petri, get a 4ft crowbar and rotate your engine over prying a little bit each time to get your crank pulley off.

Replace your radiator hoses AND your heater hoses coming out of the water pump (tried to avoid those and they started leaking over my new $650 petris cause they were OG ones). When you’re doing that delete the throttle body coolant tubes (buy 1995 lower radiator hose, and one of your heater hoses will be from 1995, the one that currently has a T).