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Old 05-07-2006, 06:46 PM
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Join Date: May 2006
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diesel interchange

Hi I have a 84 300sd. The engine is destoyed due to lack of oil. I can obtain a 1982 300dt. I know all the Id numbers on the engine are the same except for the last one of which is 617.952 on the dt and 617951 is the sd. Can I put the dt engine in the sd. What are the differences.

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Old 05-07-2006, 07:14 PM
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The 82 dt engine will have the rear suspension oil pump on the head. Someone else will have to speak up if you can somehow disable the pump. Some of the vacuum fittings on the throttle linkage may be different but you can switch that over from the '84. Pull the engine and trans as one unit. It WILL save you alot of hassle.
My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.
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Old 05-07-2006, 08:59 PM
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Originally Posted by Motorhead
The 82 dt engine will have the rear suspension oil pump on the head. Someone else will have to speak up if you can somehow disable the pump.
I think you're reading that as "TD" instead of "DT", the difference being the "TD" is the wagon that has the self-leveling suspension in the back as opposed to the "DT", which is a diesel sedan with a turbo. The propper designation for the latter is actually just "D" but some ppl prefer "DT". I asked this question earlier and it was sugested to me that the only problem might be the engine mount arms but they can be switched out with no problem. If you're going to be swapping trannies, however, the SD has an electronic speedo sender and the D a mechanical. Other than that, if you can swap the tailhousings on the trannies, I think they're the same too.


1984 300D 225K
1985 300D Donor body
1985 300D Turbo 165K. Totaled. Donor Engine. It runs!!!
1980 300SD 311K My New Baby.
1979 BMW 633csi 62K+++? Dead odo
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