Where is the slave solenoid located?

Is that the same as the slave solenoid?

The starter was rebuilt with new solenoid, and bench tested in front of me (it worked before I rebuilt it, but since it was out, didn't want to take any chance)

Not sure if this matters, but it is the smaller lighter high performance starter. When it works, works fantastic!

Thanks for the clarification, didn't really know how that works, and I'm not near the boat to look at it right now.

a little on the extreme side but we had this happen to a 454 mag and the risers were leaking and there was water in the cylinders. not for nothing but pop out a spark plug and check. good luck.

mercruiserparts.com shows the 454 mag slave solenoid mounted on the bracket that the ignition module and the main 50 amp circuit breaker is mounted(looks like the bracket attaches to one of the cylinder heads. Here is a pic, it is not the same as the starter solenoid, the slave solenoid provides power to actuate the starter solenoid and then the starter motor.

Short across the two big poles on the top of the solenoid with a screw driver or a big jumper wire and the motor should start turning over.

Funny you mention that, never heard of that before.

Similar thing, this summer was trying to help out a guy who could start one engine is his cat. Tried another battery, just click and nothing.

He called a buddy who told him to take a plug out, and gas poured out. took out all the plugs and gas just poured out, and looked like the float got stuck and was just poring fuel into the engine.

Didn't go anywhere that day!

Thanks, and I appreciate the picture, makes things MUCH easier to find and understand

I had one of those fail on my gibson, crusader big blocks, looks the same....wonder why they are even used ?? wonder if you just by pass them ?? the starters used std gm solinoids ?? just a thought...Rob

I believe that the reason slave solenoids are used is to avoid running long wires to the dash to actuate the starter solenoid directly from the ignition switch. The wires are already 10 gauge so to run to the dash and back would take much bigger. Plus corrosion in the wiring and terminals would reduce the current flow to the starter solenoid. Same reason people install electric hatch lift solenoids. Mine got really slow so I hooked up a solenoid with a wire directly to the battery and now the hatch zips up and down.

BUT, those slave solenoids are a pain. I carry an extra and of course there's always the jumper wire/screwdriver.