My Hunter is a 1996 that has only 50 hrs on the engine. But our last trip out, the diesel couldnt be shut off. We hit the stop button and NOTHING happened. I removed the panel and shorted out the stop button, and opened the circuit too. I couldnt stop her. The only way I could do stop the engine was to turn off the fuel at the gas tanks. Any ideas? I am very good with electronics, can I find and test a relay in the cockpit panel circuitry??
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steven f.
manual kill switch.
Though I dont have your same engine (I have a Westerbeke 24A) and I occasionally have a similar problem. My problem is the kill switch, it sticks. I than go below and manually kill the fuel to the engine for a few seconds than spray some lube on the kill switch. This might not be the correct way but it works for me. By the way, this has only happened to me twice in several years and I sail about once a week.
Though I dont have your same engine (I have a Westerbeke 24A) and I occasionally have a similar problem. My problem is the kill switch, it sticks. I than go below and manually kill the fuel to the engine for a few seconds than spray some lube on the kill switch. This might not be the correct way but it works for me. By the way, this has only happened to me twice in several years and I sail about once a week.
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Eric Lorgus
You should also have a manual pull-shutoff
Jolie: I spent a couple of days on a Hunter 54 last week that had a stop button as well as a manual pull-cable shutoff. The button was connected to a solenoid on the engine. If this is the arrangement you have, it sounds like the solenoid is the problem, since you ruled out the switch. But there should also be a manual pull-cable shutoff. Its location varies on different boats. Often it's near the helm, but I've also seen them located in or around the companionway. Once you find the manual pull-cable shutoff, trace it's other end which is on the engine. Have a friend work the pull while you're looking at the engine. REMEMBER where this is. My pull-cable hung up once, & I had to kill the engine by opening its cover and manually pulling the fuel shutoff lever. Shutting off the fuel at the tank will also work, but will take longer.
Jolie: I spent a couple of days on a Hunter 54 last week that had a stop button as well as a manual pull-cable shutoff. The button was connected to a solenoid on the engine. If this is the arrangement you have, it sounds like the solenoid is the problem, since you ruled out the switch. But there should also be a manual pull-cable shutoff. Its location varies on different boats. Often it's near the helm, but I've also seen them located in or around the companionway. Once you find the manual pull-cable shutoff, trace it's other end which is on the engine. Have a friend work the pull while you're looking at the engine. REMEMBER where this is. My pull-cable hung up once, & I had to kill the engine by opening its cover and manually pulling the fuel shutoff lever. Shutting off the fuel at the tank will also work, but will take longer.
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jolie
It was the Kill switch lack of lube
You were both correct! Turns out my honest mechanic tells me its the solenoid switch, and he sprayed it up with WD40. Probably will charge me more for bleeding the system, then for the spray job. BUT I didnt see him do it for the life of me I cant find the manual kill, or the solenoid too.
You were both correct! Turns out my honest mechanic tells me its the solenoid switch, and he sprayed it up with WD40. Probably will charge me more for bleeding the system, then for the spray job. BUT I didnt see him do it for the life of me I cant find the manual kill, or the solenoid too.
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Dave Ullrich
In an emergeny:
You could always just flip the "compression lever" to the open position. This will kill the compression to the engine...no compression...no running!
You could always just flip the "compression lever" to the open position. This will kill the compression to the engine...no compression...no running!
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jolie
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bill walton
manual kill switch
There is not one on our boats. As you have seen the solenoid located on the backside of the engine will occassionally stick and need to be lubed. I simply attached a length of stout cord to the solenoid actuated lever and have it dangling outside of the rear engine access door inthe stateroom. It is then simply a matter of tugging on the line, with the door open, to kill the engine. It is not too hard to locate the tie off point.
There is not one on our boats. As you have seen the solenoid located on the backside of the engine will occassionally stick and need to be lubed. I simply attached a length of stout cord to the solenoid actuated lever and have it dangling outside of the rear engine access door inthe stateroom. It is then simply a matter of tugging on the line, with the door open, to kill the engine. It is not too hard to locate the tie off point.
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Stan Rogacevicz
Choke it to death
The other thing a diesel needs is air. Take a flat object - NOT YOUR HAND - like a book or magizine and cover the air intake. Pulling the compression levers may be ok at an idle, but in a thread a while ago on another list the subject of a real "run away diesel" caused by overfilling of the oil - giving it an un-shut-offable fuel source came up and valve damage was mentioned as a problem with pulling the de-compression levers while the engine was screaming. Stan "Christy Leigh" c320 #656
The other thing a diesel needs is air. Take a flat object - NOT YOUR HAND - like a book or magizine and cover the air intake. Pulling the compression levers may be ok at an idle, but in a thread a while ago on another list the subject of a real "run away diesel" caused by overfilling of the oil - giving it an un-shut-offable fuel source came up and valve damage was mentioned as a problem with pulling the de-compression levers while the engine was screaming. Stan "Christy Leigh" c320 #656
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Eric Lorgus
Don't use compression levers to kill engine
I agree with Stan's warning about compression levers. I don't think that's their intended use, & I'd be concerned about uncompressing a cylinder that may be in the middle of a compression (& combustion) stroke. To summarize all these excellent suggestions, know where the fuel shutoff lever on the engine is (regardless of whether it's actuated by a pull cable or solenoid) and try that first. Blocking the air intake or shutting fuel off at the tank would be my secondary choices.
I agree with Stan's warning about compression levers. I don't think that's their intended use, & I'd be concerned about uncompressing a cylinder that may be in the middle of a compression (& combustion) stroke. To summarize all these excellent suggestions, know where the fuel shutoff lever on the engine is (regardless of whether it's actuated by a pull cable or solenoid) and try that first. Blocking the air intake or shutting fuel off at the tank would be my secondary choices.
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