Thunderbolt V Ignition Wiring Diagram

Im looking to replace the thunderbolt v ignition system. W ignition key on and bilge well ventilated of gas fumes. 4b ignition system wiring diagram 4b timing and idle adjustment procedures for thunderbolt v ignition.

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It should read 12 volts.

Thunderbolt v ignition wiring diagram. Tests for tb ignition. V6 mercruiser engine thunderbolt iv ignition and forgot how all the wires i have the full seloc manual so i already have these wiring diagram that you. Connect your voltmeter neg. Thunderbolt iv and v ignition systems.

It shows the components of the circuit as simplified shapes and the capacity and signal connections between the devices. Wanted to replace the mercruiser ignition system with something new. Thunderbolt iv ignition wiring diagram wiring diagram is a simplified standard pictorial representation of an electrical circuit. Wanted to replace the mercruiser ignition system with something new.

Lead to the engine ground and pos. My 2452 with a 5 7l 250 hp 2 bbl carb engine had developed a problem. Since we get questions about these systems i though i could relate my findings ala caotharvôçª there is a reason i researched this. 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.

Lead to the white red wire terminal at the dist. Warning electrical ignition and fuel system components on your mercruiser are designed and manufactured to. 6 6 2017 mercruiser thunderbolt ignition system and the cure. Remove the white green lead from the dist.

When hot the ignition fails completely. If 12 volts is present remove the coil spark wire from the distributor and connect it to a spark gap tester to ground. Fits gm v 6 engines with thunderbolt iv v hei ignition. The thunderbolt v has 5 wires two of which go to the distributor one is a wiring diagram.

After cooling it runs normal.