What a day!

I replaced the vacuum shut off valve on the IP because the 240D would not shut off. I also rebuilt the the vacuum pump. After I got the valve's adjusted and put in the new radiator everything was ready to go.

After reading the mishaps of some of the forums other members with regards to the critical nature of the proper installation of the vacuum shut off valve I took the following precautions.

1. Left off the air cleaner assembly.
2. Had a phone book handy.
3. Had 17 mm wrenches at the ready.

I was very careful when I re-installed the vacuum shut off valve. I was sure I got it correct, espically after reading all the warnings. Please excuse the liberties in the terminoligy. I had the "L" in the shut off valve firmly seated in the notch in the rack of the IP(did I say that right?). I tested the new shut off valve with the hand held vacuum pump. Everything seemed ready to rock and roll.

Thank you know who for being paranoid. When I started the motor, you guessed it, it ran away. I was alone and as soon as I realized the beast had been released I jumped out of the car and slammed the phone book over the bare intake. The motor shut off quick. It only ran wild for a few seconds. Scared the #### out of me. After my heart stopped beating below 1000 bpm and I changed my shorts I started to look into the cause.

After a quick call to a very good man, the trouble shooting began. I rechecked my install of the shut off valve. It was in the slot. I noticed some strange behavior in the throttle linkage. It would not return to slow idle with the shut off valve installed as I imagined. Now this car, ran just fine, except it would not shut off when I bought it so I was very sure the IP was in fine shape. Something I had done cause this problem. My ace in the hole was a super mechanically smart friend of mine, a MB diesel die-hard. When he arrived we went thru much discussion and tried several things. With the phone book handy we had a couple of failures, none as wild as the first one, much easier with a second set of brains and hands. We removed the shut off valve and left it off and the engine ran just fine. The shut off valve install was cause of the problem. When the shut off valve was installed with the 'L' in the rack linkage the throttle linkage would not return to slow idle most of the time. When we installed the shut off valve with the 'L' forward of the rack, not in the slot, the engine ran and shut off just fine.

Did I miss something?

All input would greatly appreciated!

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79 240D (no name yet) 203K Miles Maple Yellow
98 2500 4x4 HD Dodge 24 Valve Cummins TD
83 Chevy Van (Dead-Trans. shot)