The other car

March 9, 2008

Some people expressed interest in my other car, a ’71 280S (W108) that has gotten a OM617 and five-speed manual transplanted into. Here’s a few relevant pictures, they are not of the best quality but it’s quite hard to take decent pictures down in the engine compartment.
I bought the car this way, and haven’t done the conversion myself.

First, a overview
W108 overview pic

Close-up of the engine, two pictures. This is a OM617.910 (“240D 3.0”, NA), that was installed in W115 75-76-models. It has a more rounded intake manifold, as seen, and the oil filter housing is located differently than later OM617’s. Note that original air filter housing has been used, and radiator/oil cooler are also original.
W108 front view
w108 engine side view

Passenger side engine mounting arm, this is probably the W115-arm that was included with the engine. The rubber piece is very similar to those in W123, maybe it’s from one.
w108 engine mounting passenger side

Drivers side, appears also be the arm from W115, and rubber from god knows where.
w108 engine mounting drivers side

Two interior shots, one of the shifter (from a W123?) and one of the gorilla knob.
w108 interior shifter
w108 gorilla knob

Some of the pictures hints quite a lot of rust. Yes there are rust on visible spots, but the whole underbody is very clean and newly welded where needed. Also the interior is horrible, it’s missing pieces and seats are torn, I’m going to get a whole interior from a spare parts car and swap that in, whenever time permits.

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Done: Oil cooler

May 20, 2007

oil cooler mounted
Got myself an oil cooler! A friend has a for-parts-W108 sitting in his barn, he said go ahead an pick whatever you want so I did.. His oil cooler now sits in the front of my car (that is, after cleaning it, picking out two spiders and giving it a light coat of black paint). Also got myself some hydraulic hoses (again from AMAB Hydraul as were the earlier ones) to connect the cooler to the oil filter.
Here’s the result.


Hot and cool

April 22, 2007

This is what’s been up lately..

  • Radiator and all hoses are mounted
  • Exhaust system completed
  • Oil filter mounting completed
  • Shift stick linkage completed
  • Let’s begin with the radiator

    It was a fairly easy job. I used a standard Behr-radiator that came along with the 300D-engine. Has an transmission oil cooler in the bottom. The Behr is a bit narrower than the original ’68 radiator so I created simple mountings that holds it firmly in place, shown here:
    Radiator mountings

    Here’s the completed assembly with all the hoses connected. The transmission cooler lines are connected but not shown in the picture. Note how well the heater water connection connects up:
    Radiator assembly

    Then the exhaust system

    The front part came also along with the engine and fitted surprisingly well. Okay there wasn’t much marginals between the steering linkage but it did go in. Everything after the foremost part was the old pipe from the W110.
    Here’s the front part
    Exhaust front part

    And a shot from underneath, some cutting and welding hade to be done for the W123 and W110-parts to talk to each other:
    Exhaust underneath

    The oil filter relocation is also done

    Here’s the completed oil filter plate adaptor
    Oil plate adaptor complete
    (Thanks to Conny for some fabulous welding!)
    The small pipe in the bottom is for the oil pressure line. This normally comes out of the filter housing but not anymore on this engine..

    A closeup of the installation
    Oil plate adaptor installed

    And an overview (a bit messy picture)
    Oil plate overview

    Finally a word about the shift stick linkage

    A pretty straight forward job, there was a clear path from the shifter levers down to the transmission, so all I did was make up an appropriate lengt rod with connectors at each end. Missed to take a picture of this and it’s useless to shoot one now, but if you ever find yourself doing this same job you’ll find the job a piece of cake.

    Other things

    I have to relocate the battery to somewhere else, this is what I had in mind. Inspired by the later models.
    Battery new location?
    It’s the rusty plate with traces of blue in the picture. Fits in to that space, just have to fabricate something that attaches it to the chassis. This is a job for another day though.

    That’s all for now.