I have a 1975 300D W115 i just did an engine swap on. Got a great engine from car-part.com shipped to me. Turns out it was rebuilt. Also turns out the fuel shutoff valve on the back of the ip doesn't work and it's a bit of a pita.

Ha . Had i known. Anyway, i like an electronic shutoff anyway. So my thought for adding an electronic shut off valve is to put a 3 way fuel selector valve right after the primary fuel filter and when the key is off the output just loops back in front of itself.

When the key is on the valve will open and let fuel flow to the ip.
Anyone done this or added a electric shutoff valve to a 617 or 616 engine?

I really like the push lever shutoff on my 1976 240D W115 manual. It's like the German import or something. I wish i could retrofit that on but the IP seems way different.

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What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius

Check out my build thread. I went thru a ton of work to make this happen and it isn't easy. Bottom line - if you shut off the fuel with a valve the engine will have to run thru all the fuel in the filter before it stops running. I have a system that works by pushing the rack back to the "STOP" position the same as using the underhood stop lever.


Dan

They have 12 volt fuel shutoff valves on eBay. You don't have to buy there just look for informational purposes. You could also do a Google Images search and bring up pictures of them and sources.

If you are willing to give up that clear fuel line between the spin-on fuel filter and the fuel injection pump you can put the shut off between it and where the fuel goes into the fuel injection pump.

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84 300D, 82 Volvo 244Gl Diesel

I'm going to go looking for that. Any search terms?


Dan

Have you tested the shut down using a MityVac?

Yup, the W123 model line uses a completely different injection pump.

As Dan mentions, using an electronic fuel cut off might still require you to run the fuel from the pump/lines until the supply was exhausted. It might lead to delayed starts until the fuel was replenished. Might not.

Dan mentioned using the "Engine stop" lever. The first generation Cummins 4B's used such a solenoid.

https://www.ebay.com/c/28002575545 as an example.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now

Fuel Shutoff Valve 12 volt

I am thinking as a test you could simply take a Vice Grips and clamp off the Fuel Inlet Hose before the fuel gets to the Plastic Filter and see how long it takes for the Engine to Shut down. If it shuts down in a reasonable then between the Plastic Filter and the Fuel Supply/Lift Pump would be a good place for the electric shut off solenoid to go.

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84 300D, 82 Volvo 244Gl Diesel

Take a look at how mach4 did it on the SL Diesel project:
380SL Diesel Conversion Project
It works great.
The problems with cutting off the fuel supply to the IP are 1) engine will not shut down immediately. 2) with no/little fuel in the IP, it will take much cranking to start the engine. 3) When there is no fuel in the IP, there is usually air. This too will cause the engine to run poorly after start until all the air has been displaced by fuel.

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All Diesel Fleet
1985 R107 300SLD TURBODIESEL
2005 E320 CDI (daily)

LOTS of parts for sale!


EGR block kit
http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html

1985 CA emissions 617 owners- You Need This!
Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst.

Sanden Instalation Guide (post 11):
http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html

Thanks all. I’ll play around and see. Definitely after the big fuel filer. I read that build and it seems Mach 4 still uses vacuum shutoff. I can apply vacuum to ip and it doesn’t shut off.

Dan I’m searching for your build thread. The 606 uses an inline shutoff valve. If it works I thought maybe a electric lift pump could help with repriming it. By the time the glow is done it should have pumped the ip up. An electric lift pump is a great addition to any 617. I have a couple lying around too.

FWIW the 60x fuel line valve is only for the immobiliser. Still has a regular shutoff. Pulling the "throttle" arm back down be the best way to hook up a solenoid

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1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making....
1977 280> 300D - 500,000km+ (to be sold...)
1984 240TD>300TD 121,000 miles, *gone*
1977 250 parts car
1988 Toyota Corona 2.0D *gone*
1975 FJ45>HJ45
1981 200>240D (to be sold...)
1999 Hyundai Lantra 1.6 *gone*
1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist)
2001 Holden Rodeo 4JB1T 2WD

Or replace the vacuum shutoff, and use a solenoid to operate the valve.

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All Diesel Fleet
1985 R107 300SLD TURBODIESEL
2005 E320 CDI (daily)

LOTS of parts for sale!


EGR block kit
http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html

1985 CA emissions 617 owners- You Need This!
Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst.

Sanden Instalation Guide (post 11):
http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html

I have an electric shut off in my Stude /benz. I am not sure of the details but it kills the engine immediately. If it takes a long time to turn off I'd say you have a leak...?

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Thanks all. Interesting the 60x shutoff is just for security. Good to know. I’m trying to avoid the work of replacing the vacuum shutoff. It’s not like a newer 617 where it is a trivial job. You have to take of the rear cover of the up. I ordered a shutoff solenoid valve suitable for fuel — 16 bucks on amazon — and some 5/15 barbed fittings for it. Gonna try that out this weekend. I’ll report back.

To my knowledge all the 617 MW pumps have the same location for the vacuum shutoff actuator...NA or turbo...us M pump owners have it easier.

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1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making....
1977 280> 300D - 500,000km+ (to be sold...)
1984 240TD>300TD 121,000 miles, *gone*
1977 250 parts car
1988 Toyota Corona 2.0D *gone*
1975 FJ45>HJ45
1981 200>240D (to be sold...)
1999 Hyundai Lantra 1.6 *gone*
1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist)
2001 Holden Rodeo 4JB1T 2WD

I used an electric emissions vacuum switchover valve from a W124 gasser in the junk yard to have an electric shutoff on my OM601 powered 190d conversion car. Worked perfectly for 5+ years that I drove it....never an issue and it shut off instantly when I turned off the key.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

So I’m looking and my vacuum valve on the back of the ip is holding vacuum. I have my parts to put in the the inline electronic fuel shutoff valve. Now I’m hesitating.

Is the stop lever actually supposed to move with vacuum or is it all internal to the ip? Something must have come disconnected in the ip if so. Or could some linkages idle adjustments be binding it.

I’m going to check the manual. If I recall u should just be able to apply vacuum and it should cut off.