ok, I just purchased an 83 300TD Wagon, non running... I know, stop buying the defunct ones... anyway, I put in the key, flush out the fuel, and crank er up, and she starts, but violent shaking. I mean the bumper and fender shake really bad. if I rev up the motor, it sorta smooths out. but never like my other two 617's and when I push the stop lever, it STOPS@!!! solid like it was straining to keep running. what could this be? a faulty injector? badly adjusted valves? any assistance would be appreciated. I got this one for my mother to drive, she loved my 79TD and wanted one with the second row of rear seats.
Thanks everyone...
John

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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!

My 84 300cd shaked alot. I replaced the motor mounts and adjusted the idle speed up a little to 700 rpm. I think that's about normal. That helped me.

Adjust the valves, go from there. Its most likely past due anyway.

Compression test may reveal a weak cylinder.

Probably motor mounts. With it running crack loose one injector line at a time at the top of each injector. If the idle is affected evenly as each line is cracked then re tightened , then the injectors are probably ok. Loosening each line is like pulling each spark plug wire off a gasser. If the drop in RPM is the same line to line, then its firing on all 5.

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81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.