Mercruiser Thunderbolt Ignition Wiring Diagram. Spark plug gap in. Electrical systems wiring diagrams pdf free.
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In this episode i show how i installed a new delco est ignition system for my mercruiser 57l. This is a complete working ignition system that was removed from a gm v 8 engine with the thunderbolt 4 ignition systemhere is the youtube location to where. Thunderbolt v ignition system wiring diagram. Electrical systems wiring diagrams pdf free.