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Old 03 June 2015, 23:35   #1
zip
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no kill cords on diesels?

Every boat I have owned has had a kill cord, which I always wear.

Any idea why there isn't one on a diesel?
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Old 04 June 2015, 01:15   #2
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I don't know. Every diesel RIB that I've driven has had a kill cord!
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Old 04 June 2015, 01:17   #3
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An ex-military diesel I assume Zip?
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Old 04 June 2015, 07:24   #4
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Jason,

Yep.
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Old 04 June 2015, 07:57   #5
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Zip, Engineering wise adding a kill cord to a diesel is somewhat harder than a petrol (where you can short the ignition). There are also potential downsides to stopping diesels at high speed, instantly - you may not want to encourage "squaddies" to use the emergency stop unnecessarily. Different story if its your own boat though.
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Old 04 June 2015, 09:23   #6
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What Poly said. And, the US Navy ordered them that way (I'm sure there is a study to back it up just like lifeguards not using kill cords on their IRB's)

You can add one to a mechanical diesel engine. For a mechanical Cummins, it's about $400. You would need to order a custom 24v solenoid. clloyd did it for his Willard.
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Old 04 June 2015, 10:50   #7
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Poly what sort of issues can arise from killing a diesel engine which is running at high speed apart from causing damage to a hot turbo bearing which is still spinning but not getting any oil to cool it?

TSM
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Old 04 June 2015, 12:58   #8
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Originally Posted by two stroke mick View Post
Poly what sort of issues can arise from killing a diesel engine which is running at high speed apart from causing damage to a hot turbo bearing which is still spinning but not getting any oil to cool it?
Think you answered your own question there Mick - ongoing stress on some of the exhaust system is cited by Yanmar too.
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Old 04 June 2015, 13:16   #9
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apart from causing damage to a hot turbo bearing which is still spinning but not getting any oil to cool it?

TSM
is that not expensive enough?
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Old 04 June 2015, 17:12   #10
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Totally aside to potential damage if misused...

If you have a stop button (think yanmar) or it stops on the key then it won't cost $400 to add a kill cord.
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