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Engine Discussion of preventative/corrective maintenance and other technical issues regarding your coach's engine.

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  #11  
Old 11-21-2008
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Quote:
Originally Posted by mrkane View Post
The engine emergency stop on my non-DDEC '87 8V92 (PT40) is located to the left of the steering column, as shown in these photos:

Here it is, buried behind the steering column adjuster, next to the retarder control...



Another shot showing the T-handle, to the right of the retarder control...



M.R.Kane
1987 PT40
1985 PT40 for sale
currently outside Weatherford, TX

Thanks M.R.,

A picture is worth a thousand words and two pictures are worth....well.........a thousand and one words, NICE JOB

I wish my CAT 3208NA had a manual override for the fuel shutoff, just in case of a solenoid failure.
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  #12  
Old 11-21-2008
jwasnewski jwasnewski is offline
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I have a DDEC II but I am curious what that handle does to shut it down. Does it somehow shut off fuel or does it shut off induction air?
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  #13  
Old 11-21-2008
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its a long cable that runs all the way to the engine and hooks to the fuel shut off lever.
the D-Deck models don't have the lever.
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  #14  
Old 11-21-2008
konehd konehd is offline
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Thanks!!
I'll take a look this afternoon and see if I have one.

I had done some research and decided that the later non DDEC motors didnt have the shut off, but apparently thats not true!

I believe the shut off is a plate that closes off the air intake. If there is an oil leak or other source of combustibles anywhere in the intake the engine can 'run away' and self destruct. Cutting off the air will kill it.

/Joe
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  #15  
Old 11-21-2008
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as far as i know,none of the turbo engines has the ''flap'' that shuts the air off.
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  #16  
Old 11-21-2008
jcoop0001
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I have heard that in a case of "last resort" on a run away diesel is to shoot a Co2 Fire extingsiter(sp?) down the intake and that will shut it down.

Sure do thing it would be a mess, but better than a melted engine.
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  #17  
Old 11-21-2008
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Default Emergency Fuel Shut Off

Thanks for the pictures M.R. I had to get up and drive to town in the dark (Bird is in storage) to see if I could find the fuel shut off. If I hadn't seen your pictures, I would never have found it. Had to lay on the floor and slide between the seat and steering column to see it. I was a little worried about an engine being 40ft away and having no actual mechanical contact with it.
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  #18  
Old 11-22-2008
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Quote:
Originally Posted by alvahall View Post
Thanks for the pictures M.R. I had to get up and drive to town in the dark (Bird is in storage) to see if I could find the fuel shut off. If I hadn't seen your pictures, I would never have found it. Had to lay on the floor and slide between the seat and steering column to see it. I was a little worried about an engine being 40ft away and having no actual mechanical contact with it.
Since the handle is difficult to locate, especially if it isn't used on a normal basis, it may be a good idea to HIGHLIGHT the handle with some contrasting colored paint, thus helping in it being easier to see and use when needed, such as seen below.

http://www.wanderlodgeownersgroup.co...&pictureid=120

You can find small bottles of Testors model car paint at Wal Mart in the toy department and similar stores and hobby shops.
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JOHN FINN
FORUM MODERATOR-ADMINISTRATOR
1982 FC35RB
I'm NO EXPERT, but I did stay in the FINN'S INN EXPRESS last night
HOPKINS, SOUTH CAROLINA
VISIT THE FINN'S INN EXPRESS REMODELING ADVENTURE AND TECH. TIPS
I'M SO SLOW ON THE HILLS,THAT I GET TO SMELL THE FLOWERS AS I GO BY.....AND WATCH THEM GROW TOO!! NOT SO MUCH ANYMORE
Visit the WILD HARE RACING website
REMEMBER 9/11
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  #19  
Old 11-22-2008
BCRoamer BCRoamer is offline
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It is my understanding that the change to an electronic control system (DDEC) in '88 or '89 was made to address all the issues with the engine, run-away etc. I also understand that the change was very successful.
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  #20  
Old 11-22-2008
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lance,any diesel can run away.
a turbo just adds to the problem.
if your turbo blows a seal it can pump lots of oil into the intake side of the engine,which could cause an engine to run away,running it uncontrolled on engine oil.
its kinda rare,but it can happen.
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