Stop solenoids

Is yours current = stop, or current= go. the point being that failure in current to the second can stop the engine. I had one such and reversed it.
I admit I don't know!
It's a Beta, I've only had the boat 10 minutes....

I've been told it's energise to stop, but I'll believe it when I find it in the actual manual and/or put a volt meter on it.
 
On my Bukh DV20 it is energise to stop. I confirmed this when I accidentally displaced the spade connector from the stop solenoid when working in the engine compartment. The next tme I turned the key to the "stop" position (quite a while later) the engine kept on running.
 
My understanding is that most engines with stop solenoids are 'energize to stop'.
Lombardini, one of the alternatives I looked at when repowering 15 years ago (but didn't pick), was the other way around.
 
I was watching the Tasmanian lobster boat prog, he had an energise to run solenoid that failed and was flummoxed when the engine stopped, even knowing it was a faulty solenoid. Bit of string would have cured it.
 
I was watching the Tasmanian lobster boat prog, he had an energise to run solenoid that failed and was flummoxed when the engine stopped, even knowing it was a faulty solenoid. Bit of string would have cured it.

If it's energise to run, remove the solenoid (if it' faulty/not energising) and remove the plunger, refit and the engine will run. Note, it will not turn off when you want it to, so have something ready to cover the air intake (if it's a car you just stall it.
 
I admit I don't know!
It's a Beta, I've only had the boat 10 minutes....

I've been told it's energise to stop, but I'll believe it when I find it in the actual manual and/or put a volt meter on it.

It i energise to stop, as are most (not all) marine engines. No need for a volt meter to test it, remove the wire with the engine running, it will keep going.
 
It i energise to stop, as are most (not all) marine engines. No need for a volt meter to test it, remove the wire with the engine running, it will keep going.

Yes, energise to stop. We had a failed stop solenoid on our Beta engine in club launch a few years ago, it seized up in the stop position. IIRC there was an instruction in the manual not to press the stop button for very long as solenoid would overheat.
 
Yes, energise to stop. We had a failed stop solenoid on our Beta engine in club launch a few years ago, it seized up in the stop position. IIRC there was an instruction in the manual not to press the stop button for very long as solenoid would overheat.

Very true Graham. I had to rewire a Volvo engine where the stop solenoid had remained energised, the owner came very close to losing the boat when the solenoid overheated and almost started a fire.
 
If it was energise to run you would hear it click over at ignition turn on. A local Lister stationary engine is rigged so, it's convenient because ignition turn off also stops the engine. With my Ford it was button, energise to stop, but if you turned the ignition off before the engine had completely stopped rotataing it would restart, with interesting lights and beeps as the key was off. One local boat has energise to run (Beta?) and has had a perplexing non start.
 
If it was energise to run you would hear it click over at ignition turn on. A local Lister stationary engine is rigged so, it's convenient because ignition turn off also stops the engine. With my Ford it was button, energise to stop, but if you turned the ignition off before the engine had completely stopped rotataing it would restart, with interesting lights and beeps as the key was off. One local boat has energise to run (Beta?) and has had a perplexing non start.

In that case, an electrical fault or a faulty solenoid/relay leaves you without an engine. The benefit of energise to stop is that it's a few less things that could disable the engine.
 
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