Thunderbolt V Ignition Wiring Diagram

6 6 2017 mercruiser thunderbolt ignition system and the cure.

Thunderbolt v ignition wiring diagram. If 12 volts is present remove the coil spark wire from the distributor and connect it to a spark gap tester to ground. W ignition key on and bilge well ventilated of gas fumes. Thunderbolt iv ignition wiring diagram wiring diagram is a simplified standard pictorial representation of an electrical circuit. It shows the components of the circuit as simplified shapes and the capacity and signal connections between the devices.

Since we get questions about these systems i though i could relate my findings ala caotharvôçª there is a reason i researched this. 4b ignition system wiring diagram 4b timing and idle adjustment procedures for thunderbolt v ignition. It should read 12 volts. The thunderbolt v has 5 wires two of which go to the distributor one is a wiring diagram.

My 2452 with a 5 7l 250 hp 2 bbl carb engine had developed a problem. Lead to the engine ground and pos. After cooling it runs normal. Tests for tb ignition.

Thunderbolt iv and v ignition systems. Im looking to replace the thunderbolt v ignition system. When hot the ignition fails completely. Lead to the white red wire terminal at the dist.

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. Fits gm v 6 engines with thunderbolt iv v hei ignition. Wanted to replace the mercruiser ignition system with something new.

Remove the white green lead from the dist.