My 1984 300SD has run flawlessly for quite some time (which is why you haven't heard from me). My problem is that the car will start fine in the morning and run like a top, but if I shut it down and immediately try to restart it, the starter will just turn the engine without starting. If I let it sit for a minute or two, it will start normally. Any ideas?

Thanks,
Tom

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1993 300TE
1984 300D
1984 300SD
1976 BMW R90S

Mine used to do exactly the same. It stopped doing it after I did the following:
*Diesel Purge.
*Changed all filters (Fuel and air)
*Replaced glow plugs and glow plug relay.
*Valve adjustment.
Since that symptom wasn't what I was aiming to fix I don't know exactly what fixed it, but it doesn't give me trouble after I did that.

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[/SIGPIC]~cirrusman

1983 Mercedes Benz 300SD - Wife calls him "Chitty Chitty Bang Bang"
[SIGPIC]




1983 Toyota Tercel (Tommy, The little Toyota that could)
1965 Ford F100 (Grandma Ford)
2005 Toyota Sienna (Elsa, Wife's ride)


Gone:
1988 Toyota Pickup
2004 Subaru Outback

1987 Cadillac Fleetwood Brougham
1986 Volvo 740 GL Station Wagon - Piece of junk.
1981 Volvo 242 DL 2 Door - Hated to see it go. R.I.P.
1987 Pontiac Fiero GT

Most likely, the vacuum is not bleeding off the shut off diaphragm with the switch. Next time it happens, pull the brown vacuum line off the shut off diaphragm on the back of the injection pump down between the injection pump and the oil filter housing and see if it starts.

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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