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31-07-2013, 21:42
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#1
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Registered User
Join Date: Oct 2012
Posts: 16
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Had to push in some kind of handle before could shut off engine, why?
When I turned the key off, the diesel engine would not shut down. I had to turn the key back to on, push push in a red handle on the ground behind the steering wheel, THEN turn the key off. I think I had to pull the red handle out again to start the engine.
I am not certain, but I think pushing the red handle in shut off the fuel? Also if I did not do these things in order the engine might not be able to start? Can someone clarify exactly what went on here? This was a diesel engine on a 42' yacht.
Thanks
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31-07-2013, 21:45
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#2
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Registered User
Join Date: Jan 2012
Location: Somewhere in the Pacific
Boat: Kristen 52
Posts: 304
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Re: Had to push in some kind of handle before could shut off engine, why?
Yes, that is the fuel shut off, the only way to shut down a diesel, there is no ignition system like a gasoline engine.
Chuck
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31-07-2013, 21:51
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#3
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Senior Cruiser
Join Date: Mar 2010
Location: gettin naughty on the beach in cornwall
Boat: 63 custom alloy sloop,macwester26,prout snowgoose 37 elite catamaran!
Posts: 10,594
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Re: Had to push in some kind of handle before could shut off engine, why?
before solenoids,many diesel injector pumps had manually operated fuel shut off levers,normally pull to stop,pushed in when starting.
turning the key off in your case might have damaged your alternator as well before stopping the engine
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31-07-2013, 21:57
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#4
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Registered User
Join Date: May 2006
Location: Nicholasville, Kentucky
Boat: 15 foot Canoe
Posts: 14,191
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Re: Had to push in some kind of handle before could shut off engine, why?
Since it sounds like you might be new to boating with a diesel engine then make certain you don't turn your battery selector switch from battery to battery through the off position while your engine is running or you may also damage your alternator.
Most key switches are now wired so they don't damage the alternator when turned off with the engine running but in some older installations, as Atoll says, you could blow a diode.
It really is a matter of how the previous owner wired the system so before going too much further learn your particular system.
kind regards,
__________________
John
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01-08-2013, 22:03
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#5
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Registered User
Join Date: Oct 2012
Posts: 16
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Re: Had to push in some kind of handle before could shut off engine, why?
How likely is it some part of the electrical system was damaged? And how much might the damage cost to repair?
I say this because it wasn't my boat, and I may owe somebody some repairs.
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02-08-2013, 00:39
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#6
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Senior Cruiser
Join Date: Oct 2007
Location: 29° 49.16’ N 82° 25.82’ W
Boat: Pearson 422
Posts: 16,306
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Re: Had to push in some kind of handle before could shut off engine, why?
If anything at all was damaged it would be the alternator diodes. Any decent alternator shop would repair that easily. Been too long since I've had one done to estimate but $100 or less.
You would tell if it was damaged because the batteries aren't charging when the engine runs. Does the instrument panel have a volt or amp gauge.
Possible but very unlikely anything else was damaged and it is very likely the alternator is fine.
__________________
The water is always bluer on the other side of the ocean.
Sometimes it's necessary to state the obvious for the benefit of the oblivious.
Rust is the poor man's Loctite.
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02-08-2013, 00:49
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#7
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Registered User
Join Date: Aug 2010
Location: Central California
Boat: M/V Carquinez Coot
Posts: 3,782
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Re: Had to push in some kind of handle before could shut off engine, why?
Black button for start, red button for stop:
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02-08-2013, 06:14
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#8
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Registered User
Join Date: Feb 2011
Location: Cocoa, FL
Boat: Wittholz 39' Cutter by Kanter, CSY 37 Cutter
Posts: 595
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Re: Had to push in some kind of handle before could shut off engine, why?
"Black button for start, red button for stop:"
ONLY on your newer engines, those of us will older engines still pull to stop and push to run on the knob or T-Handle. Old school/ And you don't have to worry about your electrical wiring or battery doing the work for you........
Youse guys with the fancy dancy trawlers get all the breaks. Of course your John Deere cost more than my CSY 37......on the 39' Steelie, the engine was upgraded to an electric push to stop button....ooooooh dread, now I am in trouble
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