Thunderbolt Iv Mercruiser Thunderbolt Ignition Wiring Diagram

Wiring diagrams 4f 3 thunderbolt iv with ignition module mounted on.

Thunderbolt iv mercruiser thunderbolt ignition wiring diagram. Color codes listed below do not apply to fuel injection system harnesses. Adapter harness 15275a1 is no longer available from the manufacturer. Mercruiser thunderbolt iv ignition wiring diagram thanks for visiting our site this is images about mercruiser thunderbolt iv ignition wiring diagram posted by benson fannie in mercruiser category on oct 25 2019 you can also find other images like images wiring diagram images parts diagram images replacement parts images electrical diagram images repair manuals images engine diagram. Thunderbolt iv and v ignition systems.

Mercruiser thunderbolt ignition systems. Here is the youtube location to where the system is being offered for sale. Thunderbolt iv mounted on exhaust elbow wht red from module to dis wht grn from moreover mercruiser boat wiring diagrams along with yamaha marine thunderbolt iv ignition wiring diagram the best boat forum for answers to hard. Identifying the type of thunderbolt iv module original thunderbolt iv icm this module is mounted on the exhaust elbow and has an aluminum housing.

Since we get questions about these systems i though i could relate my findings ala caotharvôçª there is a reason i researched this. Thunderbolt iv mounted on exhaust elbow wht red from module to dis wht grn from moreover mercruiser. Mercruiser introduced the thunderbolt iv onto their engines in alongside the introduction of the 1 r drives. Second generation thunderbolt iv ignition control module this module is mounted on a triangular plate and requires the use of adapter harness 15275a1.

See application fits and newer mcm mie l l l l mpi engines with ecm fits gm v 6 engines with thunderbolt iv v hei ignition. After cooling it runs normal. It shows the components of the circuit as simplified shapes and the capacity and signal connections between the devices. This is a complete working ignition system that was removed from a gm v 8 engine with the thunderbolt 4 ignition system.

Fits gm v 6 engines with thunderbolt iv v hei ignition. 4f 0 wiring diagrams table of contents wiring diagrams 4f 1 wiring colors for mercruiser note. Thunderbolt v ignition w o knock sensor. When hot the ignition fails completely.

The tb iv system was used until the introduction of tb v mid way through thunderbolt v was an improvement on an already exceptionally reliable and well performing system.