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Emergency shut down mod
04-26-2006, 14:14
Post: #17
Emergency shut down mod
--- In WanderlodgeForum@yahoogroups.com, "Jeff Miller"
wrote:
>i never had one runaway while driving it. and the turboed detroits
don't have a flap.and the old non turbos with a flap are allold,and
the flap is a leater type thing,that shrinks with time.the flap will
slow down the engine to a safe speed
randy
> I had it happen on a 3208 after a fuel injector broke, filling the
> crankcase with enough diesel to hit the rods and churn it up.
> Happened in Chicago, ran full-throttle with the fuel shut off, ...
> fortunately it isn't difficult to overcome the 3208 with the
brakes.
>
> Often it is simply the injection pump that causes the runaway
> (usually), cutting the fuel supply will kill it, spinning off a
fuel
> filter so air gets in works in this case (or cutting a line, I
guess
> the sledge-hammer is faster when you're saving an engine).
>
> I did watch a farmer try to stall a runaway tractor against a big
oak
> tree, it dug big holes before he got it stopped.
>
> The flap on the PTs works pretty well usually, I haven't heard of
it
> failing (except on one '86 which was on fire). Engine can't run
> without air no matter how much fuel you give it.
>
> - Jeff Miller
> in Holland, MI
>
>
> --- In WanderlodgeForum@yahoogroups.com, "randydupree2000"
> wrote:
> >
> > --- In WanderlodgeForum@yahoogroups.com, "Stephen Birtles"
> > wrote:stephen,runaway diesel engines are scarey,i've
> > been around several runaways,we shut them down by knocking the
fuel
> > filter off with a hammer,shoving a raincoat in the air filter to
> try
> > to choke the engine down(it didnt work),the flap in the early
DD's
> > don't work either,it will slow it down,but not shut it down.its
> hard
> > to stand there and try to save an engine when its running wide
> > open,take a sledge hammer,knock off a fuel line,then run!
> > randy
> > >
> > > have never seen a 4 cycle runaway But iam sure it can happen
but
> > have
> > > had a 2000 horsepower GM runaway and blow it was neat 500
> gallons
> > of
> > > old oil every where
> > > Stephen
> > > --- In WanderlodgeForum@yahoogroups.com, "Ralph L. Fullenwider"
> > > wrote:
> > > >
> > > > Scott:
> > > >
> > > > Two different engines and systems. My post concerns the PT's
> not
> > FC's.
> > > > Sorry for my not making that clear.
> > > >
> > > > Safe travels,
> > > >
> > > > Ralph and Charolette Fullenwider
> > > > Ralph's RV Solutions, Duncan, Oklahoma
> > > > http://home.swbell.net/rlf47/index.htm
> > > >
> > > > At 06:26 PM 4/25/2006 +0000, you wrote:
> > > > >"there is not a manual cable pull such as in the older
Bird's"
> > > > >
> > > > >Does my '82 FC have one of these? Where is it?
> > > > >
> > > > >Scott Forman
> > > > >82 FC35RB
> > > > >Memphis
> > > > >
> > > > >--- In WanderlodgeForum@yahoogroups.com, "Ralph L.
Fullenwider"
> > > > > wrote:
> > > > > >
> > > > > > Good morning everyone:
> > > > > >
> > > > > > There, recently, has been a situation that needs to be
> > addressed
> > > > >with a
> > > > > > modification added to the '88 through 90's Birds.
> > > > > >
> > > > > > I am working on drawing a schematic which adds a Bosh
relay
> > and a
> > > > >switch
> > > > > > located in an accessory slot on the dash, for the engine
> > emergency
> > > > >shut
> > > > > > down of the engine.
> > > > > >
> > > > > > Problem: A relay, # 34 welded the contacts and the Coach
> > could not
> > > > >be shut
> > > > > > down with either the dash or rear key switch and there
is
> > not a
> > > > >manual
> > > > > > cable pull such as in the older Bird's.
> > > > > >
> > > > > > Solution: Adding a relay to the fuel shut off valve
> > circuit, that
> > > > >is
> > > > > > controlled by a switch on the dash. The relay coil will
be
> > on the
> > > > >switch
> > > > > > and the wire going to the fuel shut off valve on the
engine
> > will be
> > > > >on the
> > > > > > normally closed side of the relay, thus if the added
relay
> > ever
> > > > >fails then
> > > > > > it will fail closed keeping the power on the fuel shut
off
> > valve.
> > > > >By
> > > > > > switching the relay, the circuit to the fuel shut off
valve
> > is
> > > > >opened up
> > > > > > and you have engine shut down.
> > > > > >
> > > > > > I will try to get this modification added to the files
> > section this
> > > > > > weekend, with the correct wire numbers/colors and
> > connections for
> > > > >those who
> > > > > > might be interested.
> > > > > >
> > > > > > This circuit will be added to Ken and Patti
> > Marsh's "ToWanda" Which
> > > > >is an
> > > > > > '89PTWB.
> > > > > >
> > > > > > So far as I know, this is a first with this "no shut
down"
> > > > >problem. It,
> > > > > > seemingly has always been, "I can't get it to start"
> problem.
> > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
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Messages In This Thread
Emergency shut down mod - Ralph L. Fullenwider - 04-25-2006, 02:15
Emergency shut down mod - erniecarpet@... - 04-25-2006, 02:34
Emergency shut down mod - Scott Forman - 04-25-2006, 06:26
Emergency shut down mod - Tom Warner - 04-25-2006, 07:21
Emergency shut down mod - Henry Jay Hannigan - 04-25-2006, 08:37
Emergency shut down mod - Ralph L. Fullenwider - 04-25-2006, 09:45
Emergency shut down mod - Stephen Birtles - 04-25-2006, 10:36
Emergency shut down mod - randydupree2000 - 04-25-2006, 13:57
Emergency shut down mod - Stephen Birtles - 04-25-2006, 14:35
Emergency shut down mod - Tom Warner - 04-25-2006, 15:33
Emergency shut down mod - Stephen Birtles - 04-26-2006, 00:52
Emergency shut down mod - Mike Hohnstein - 04-26-2006, 01:44
Emergency shut down mod - Jeff Miller - 04-26-2006, 02:30
Emergency shut down mod - Jeff Miller - 04-26-2006, 03:15
Emergency shut down mod - randydupree2000 - 04-26-2006, 14:03
Emergency shut down mod - randydupree2000 - 04-26-2006, 14:08
Emergency shut down mod - randydupree2000 - 04-26-2006 14:14
Emergency shut down mod - randydupree2000 - 04-26-2006, 14:19



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