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#1
06-05-2006, 03:01 AM
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79 300sd 617.950 how similar to 83 617.952
Can I use a donor 1979 300SD Turbo motor in a 1983 300SD ?
The 79 lists 617.950 and the 83 says 617.952. I can visually see that the vacuum pump is very different (even different from my 1980 and the 81). Guessing I can switch in the newer vacuum pump. Turbo looks the same, same location of alternator, AC compressor, Power steering pump. So, does anyone think this engine is a good donor for any 1981 to 1984 Turbo engine ? Thanks for all your help.
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80 300D 340K Owned 30 yrs 83 300SD 440K Owned 9 yrs - Daily Driver 150mi/day 02 Z71 Suburban 117,000 15 Toyota Prius 2600 miles 00 Harley Sportster 24k 09 Yamaha R6 03 Ninja 250 
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#2
06-05-2006, 06:55 AM
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IMO, that swap is doable, but I don't think the vacuum pumps interchange. There will be some issues with vacuum (no EGR on the .950). Going the other way ( .952 into a W116 chassis) does not work unless you change the upper oil pans. The .950 had less horsepower until 1980, though, and there may be issues with non-hardened cams.
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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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#3
06-05-2006, 10:04 PM
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The interesting thing is that although it lists 10 less hp, my 79 SD is faster throughout the whole range then my 85 300D.
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1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12 1982 380SL 1978 450 SEL 6.9 euro restoration at 63% and climbing 1987 300 D 2005 CDI European Delivery 2006 CDI Handed down to daughter 2007 GL CDI. Wifes 
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#4
06-05-2006, 10:08 PM
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Quote:
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Hybrid Mode
