has anybody done this? is there a way to cut out the vacuum shut off valve and use an electric motor of some kind to shut off the motor?

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This post brought to you by Carl's Jr.

I'm pretty sure it is theorectically possible. An electric system of some kind could be hooked to the shut off lever. But why would anyone do this? The vacuum system is pretty effective.

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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

random out of vehicle swap question. If I wanted to use a non MB ignition, or adapt some way to activate the shut off valve without the little switchover valve on the MB ignition and most of the MB vacuum system.

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This post brought to you by Carl's Jr.

I read somewhere once about rigging up one of those universal choke cables to the stop lever. 15 bucks in the "help!" section of o'reilly.

If you have to 'rig up' something, that would be a way to go, in my opinion...

When you want to shut it off, just pull the cable knob!

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'82 300D (project)
'46 Willys (project)
"Nothing seems to be the way it should in this garage." -jt20
"Smarter than an engine, dumber than a hoodlatch..." -jt20
"Start jumping up and down to smoosh down those engine mounts" -DeliveryValve
"no" -kerry
"At this rate, you may have it done by winter" -layback40

that would definitely work, but it wouldn't be elegant or sexy.

I once had a nissan diesel swap I bought that was like that, shut off was a cable and coat hanger through the passenger floor you tugged on, glow plugs were the horn button, and the horn was a hanging push button. That became about as irritating as you can imagine within a couple days.

Especially when the coat hanger part broke, and you had to lean under the passenger dash and find the hole in the floor to pull on the rest of it, or open the hood.

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This post brought to you by Carl's Jr.

Do what I did for my remote start alarm, get one of those switchover valves from the AC system and use it to control the vacuum electronically.

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Ich liebe meine Autos!

1991 Mercedes-Benz 560SEL | Megasquirt MS3-Pro | 722.6 transmission w/ AMG paddles | Feind Motorsports Sway Bar | Stinger VIP Radar | AntiLaser Priority | PLX Wideband O2 | 150A Alternator | Cat Delete
1981 Mercedes-Benz 300SD | Blown engine, rebuilding someday...
1981 Mercedes-Benz 300SD | Rear ended, retired in garage.
2009 Yamaha AR230HO | Das Boot

Excessive speeding? It ain't excessive till I redline!

You need to diagnose your problem.
Temporarily block off the door lock system, see if the engine shuts down.
Check for oil in the brown with violet vac line going to the shut off actuator.

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83 SD

84 CD

I don't have a problem with shutting off, this is just a future question. One day id like to move an engine into my nissan HB, and was just curious on how people have resolved this.

Sounds like the A/C switchover valve is the way to go. do you have any pics of how you did that?

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This post brought to you by Carl's Jr.

Vacuum into the SOV/solenoid valve bottom, solenoid middle to the shutoff valve, solenoid top should be a vent. The solenoid is a normally-open valve, when the car is on the 12v closes the valve and blocks / vents vacuum to the shutoff valve, 12v off / ignition off and the solenoid allows vacuum to the shutoff valve. The solenoid will need a ground and a 12v ignition-switched wire.

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Gone to the dark side

- Jeff

A few years back I was helping install a veg kit and the owner was using a Veg controller computer that would do everything for you, so you never had to do anything other than drive the car. The controller had a electric solenoid that you hooked into the vac system that would supply vac directly from the main vac line to the shut-off valve when you turned the key off. It worked pretty well, since the vac was coming directly from the main vac line instead of going through the ignition. But it was still vac operated.

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Which valve did you use.... the ones that control the vacuum pods in the dash?

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1987 300D 180k
1985 300SD 330k Helga
1992 300D Lola 269k- Sold
1986 325 coupe Bessie >300k Original engine(ODO Broke) sold
2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it

On eBay you often see small 12 volt Vacuum Pumps some cars use on their cruz control.

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84 300D, 82 Volvo 244Gl Diesel

If you want something sexy, a simply piece of vacuum hose run into the passenger compartment is perfectly fine. A couple of hard sucks and the engine will turn right off.

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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

Many diesel engines on trucks and heavy equipment use a solenoid that is made for that purpose.can be wired "energise to run" or "energise to stop".Ypu would probably want to wire it for energise to run that way when you turn the key off the engine stops.Should be simple to connect to your stop lever once you see how its done on other equipment.
Don

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Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles

your definition of sexy is intriguing.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!