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A/C Model 3500 Engine ??
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Calvin Schmidt View Drop Down
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Joined: 11 Sep 2009
Location: Ontario Can.
Points: 4515 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Calvin Schmidt Quote  Post ReplyReply Direct Link To This Post Topic: A/C Model 3500 Engine ??
    Posted: 11 Oct 2010 at 8:25pm
I think you you have  it right. I've never personally experienced this but know a guy that had it happen in a MACK truck. Usually you don't get the engine stopped before it is too late. Thats why the old two stroke Detroits had the emergancy shut down that blocked the air intake.
Nothing is impossible if it is properly financed
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centralbuilders View Drop Down
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Joined: 11 Oct 2010
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Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote centralbuilders Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2010 at 8:05pm
A customer of mine has a mil surplus 60 kw gen-set. w/ a model 3500 engine (built 2/85).  He exercises it monthly for about ten minutes each month. Last week while in the exercise mode (1/2 throttle), he said that it gave a belch of black smoke, and began to (without any action from him) increase engine speed and black sooty oil mix came from exhaust stack. He shut down the fuel solenoid and the engine began to gradually decrease speed and finally stopped.. Then he called me..
I believe that this run-a-way may have been caused by a blown oil seal in the turbo that fed a oil/diesel mixture into the  combustion chambers and when he stopped the flow of diesel, it would not run on lube oil alone and thus stopped..
Any experience with this phenomenon, and if so, am I on the right track??  Any replies appreciated... Bobby
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