I'm not sure if this is drawn out joke, or if you are serious.

__________________

It's a joke. But seriously, I've shut off a 617 many times by sucking on a vacuum hose.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

I've thought about taking the air metering box and turning it around backwards (so the air flow goes through the other way) and using a pin to hold the flap open with a pull cord to yank (letting the flap slam shut - it is spring loaded plus would have the suction of intake) as an emergency shut off to stop run-away diesel.

Cutting off air is a certain way of stopping the engine in all cases.

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Cheers!
Scott McPhee

1987 300D

It IS easy to joke about whether sucking or yanking is the best way to shut off an engine.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

Especially since you have to PUSH on the knob to shut the engine off...

__________________
Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

Kerry was the one who said pull, not me.

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.

???? There is no existing knob so how do you know it needs to be pushed? A pull cable is the best way to accomplish diesel interruptus.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

I can just see it now,
you get pulled over on the highway,
the trooper comes up to your car & says "please turn off your car & get out",
You reply "ok I just have to suck on this".
What do you think the trooper does next?

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

use a vac pump out of a central door lock system. Cheap, effective, still mercedes. Pushbutton to start, pushbutton to stop.

alot of diesels like our JD tractor or bobcats, even a 5.9 cummins, has an electric solinoid thats operated via the ignition. there made just for that function and made to be reliable.

We did used to have a couple if Iseki diesel tractors that both had an air choke butterfly. works well! And the most basic way to stop a runaway diesel like if the turbo let go or some kind of injection pump failure

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87' 300D, Currently undergoing an OM606 swap/build! SUPERTURBO!!!
03' 2500HD Dmax + goodies!
82' 300SD, parting out!
93' 300TE 4matic, parting out!
83' 240D Project Cheap Drive
89' 300E, parting out!
74' Datsun 510 wagon
88' RX7 10thAE, 13B track car build soon

Skippy~ As for perception: Drive what you like and can afford. Those who don't like it can supply vacuum to one of your components. LOL

If you need parts, I have some!

He doesn't want vacuum and doesn't know how or if possible to route and install a choke cable. Dollars to doughnuts that Unimog is a standard transmission. Want to kill the engine? Just put it into top gear and let the clutch out. How difficult is that?

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!

Agreed, however, post #1 references a mechanical shutoff as used on 190D, 220D, etc. That was a pull to start / push to stop system. A stiff but flexible cable (similar to an old speedometer cable) was mechanically attached to the IP. Pushing it forward shuts off the fuel flow.

On North American models, I believe this was only used on 4 cylinder diesels to 1975, however, in Europe, I believe it carried over to early 617's.

__________________
Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

How about a hood release cable and handle assy from a W123? The dismantlers are full of them.

__________________
Nate Stanley
(Currently Benzless)
1985 F-250 6.9l 170K
2009 SCION XB 36.5K
2003 LS430 78K
2012 Kubota B 2320

Pull the shutoff solenoid and replace it with a spring and plunger on its plate.
Or find an old one with a blown diaphragm and cut the vac cylinder open to reveal
the "pin" actuator you need.

Pull with a cable to shutoff the rack. Return it to the "ready" position with the spring
around the pin. The clevis that attaches the two parts is just a simple right angle
pin. Its probably LESS work that creating a linkage between the accelerator lever
and some ground condition the DOESN'T affect the throttle .

The shutoff plunger is located at top back of the IP on a four bolt flanged plate.
The engagement feature you need is already machined into the rack. All you need
is a cable actuator to take the place of the vacuum piston on the shutoff cylinder.

__________________
--frankb

1982 300TD 617.912 <NLA> . 1975 2002 E10-EFI . 1976 914c6 . 1983 MG LMIII <NLA>. 1988 Montero / 616<NLA> . 2001 TLS . 2005 Saab 9-5 Wagon