Quote:
Originally Posted by MB140300SD
It that case it should have manual shutoff. Are you sure it has a vacuum shutoff? There is a governor on the back of the IP that has a line running to the intake but it is not a vacuum shutoff valve. If you really do have vacuum shutoff it sounds like somebody somehow swapped out the IP with a later one.
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Positive it has a vacuum shut off valve, if I remove the one vacuum line going to the IP and turn the key to the off position the engine will just keep running. it is exactly the same as my 82 240D.