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Old 04-03-2012, 02:09 PM   #21
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The turn of a couple of valves allows the fuel-polishing pump to prime the engine.
LOL yeah on YOUR boat. ok so that is your emergenct shut off, but for the rest of us, not so much...
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Old 04-03-2012, 03:38 PM   #22
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Clamping off the air intake will stop it a lot faster than letting it run itself out of fuel. And with a lot less potential headache getting it running again.
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Old 04-03-2012, 04:19 PM   #23
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I don't like the possibility of touching a hot engine.

In my case, the air filter/intake is on a pipe directly atop the engine so there is no "clamping" possible.
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Old 04-03-2012, 04:59 PM   #24
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Mark, if you were to wrap a towel or a strip of cardboard around that air filter, I bet she'd stop pretty quickly.

I had an intermittent shut down solenoid a couple of years ago. I replaced the solenoid and I adjusted the cable at the bellcrank and thought I had it fixed, but I couldn't get full power while underway to the SF Bay. Once I relaxed the cable, the engine ran fine, but I couldn't activate the electric shut down. I rigged a length of poly cord from the bellcrank, under the floor joists and out the forward ER door. To shut down, I'd pull the string. It got me to and from the Bay area until I could fix it properly.

It turned out to be a bad wire to the solenoid. Once I replaced that wire, all was well. Now I have a spare solenoid.
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Old 04-03-2012, 05:21 PM   #25
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Al, that raises a question in my mind. When I push the "off" button on the control panel, how does that stop the diesel engine? Does the solenoid cut off the fuel, cut off the air, eliminate compression, or what?
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Old 04-03-2012, 05:29 PM   #26
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I don't know about your John Deere, but my Perkins has a fuel shut off on the high pressure fuel pump that cuts off fuel near the point of delivery. The fuel lines leading into the pump remain fully charged.

You can climb down there without the engine running, but with the key in the ON position, then ask Perla to activate the stop button and see what happens. I suspect yours is similar. I think it's a pretty standard diesel practice.
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Old 04-03-2012, 08:07 PM   #27
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...........
You can climb down there without the engine running, but with the key in the ON position, then ask Perla to activate the stop button and see what happens. I suspect yours is similar. I think it's a pretty standard diesel practice.
That's what I should do. I thought of it the other day but didn't feel like crawling around.
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Old 04-03-2012, 08:10 PM   #28
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I don't like the possibility of touching a hot engine.

In my case, the air filter/intake is on a pipe directly atop the engine so there is no "clamping" possible.
It's important that whatever you do, nothing can get sucked into the engine. That will stop it, but probably at great cost.

The suggestion of wrapping a towel around the filter would probably work and is something I hadn't thought of.

My plan was to remove the filter and place a piece of wood over the intake. A rag or towel here would be a poor choice.
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Old 04-03-2012, 08:42 PM   #29
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Hi Markpierce,
What an immaculate valve/piping set up your pics demonstrate. An example to us all.
Glad to see you reclaimed your title post revamp. I seem to have lost my avatar,must be there somewhere,maybe behind the bilge pump......
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Old 04-03-2012, 09:00 PM   #30
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Mark I expect your engine is common rail electronically injected. In that case the shutdown will simply turn the injectors off.
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