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#1
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79 300sd Tranny probs
if anyone could i would apprciate it, about 2 years ago i put a rebuilt tranny in my 300sd no problems, this morning i go out and put it in reverse then shifted into drive to go out came to a stop and the car would not go! not in drive, reverse will not move-- no noises Any ideas on the problem?
thanks Cosmo |
#2
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If it isn't a simple linkage problem, it sounds like you have absolutely no pressure being developed by the front pump
I would suspect that the torque converter or front pump is knackered. My 80 300SD came to me that way ( cheaply). The slender fingers of the TC had sheared off and wrecked the front pump. If I were you, I would remove one of the ATF cooling lines from the bottom of the radiator, start the car, engage reverse and see if you have any pressure. My guess is that you won't have any. I fixed mine by cannabalizing a 722.112 tranny from a 77 280S. Car works just fine now. The design of that TC is weak in that regard. They beefed up the fingers on the 722.3xx . Rick
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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??) |
#3
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79 tranny prob
maybe a dumb question but would that entail removing the tranny or is it in front of the engine?
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no..ATF cooling lines go to the radiator. Disconnect there and have something to catch the fluid. Have another person do this with you.
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1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD 1979 300SD 245K miles (never ending project) 2007 Pinarello F3:13 1995 Ducati 916 (SOLD, sniff) 1999 Ducati 900SSie (SOLD) |
#5
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as was said above, the test is easily done with 17 or 19mm wrenches at the radiator. Fixing the problem I described above will require removal of the transmission and most likely a new torque converter and/or front pump.
Rick
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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??) |
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