Quote:
Originally Posted by iwrock
So the drive shaft bolted right up to the tailshaft on the trannie without problems?
Did you use the stock fan and clutch? W201 Steeringbox?
|
Good questions! No, the tailshaft on the trans needs to be swapped out for the smaller 90 mm flange that is used in the 722.4 (m103) trans. It is as far as I can tell a straight swap, as the rear end of the 722.3x and 722.4 are the same aside from the flange outer diameter and also the speedo gear vice spacer bearing in the 722.3. I can't speak for the geometry of the w124, but I basically put the motor and trans in, and bolted the rear trans mount to the original location using the OE bracket. Miraculously this placed the motor in the exact location that it needed to be in (for clearance in the engine bay and trans tunnel), and after setting 5/8" clearance over the front crossmember (above the oil pan), the motor angle was also correct and the driveshaft slips right onto the pin on the trans output end. Does that make any sense? Its hard to explain things in words w/o pics....
There is not enough room to use the engine driven fan or clutch assembly. I'm going to be using an electric pusher fan on the other side of the radiator which will hopefully be sufficient (crossing fingers).
Oh yeah, not sure if I mentioned this, but you absolutely have to swap out the front swaybar for the 500e angled bar so that the 116/117 oil pan will clear. As it is, you will probably only have about an inch or so of clearance there, though it should sit slightly below the swaybar in terms of elevation.
I am putting the final touches on the motor mount arms, and assuming the m103 mounts in the same way in the 124 as it does in the 201, I would be happy to share the design with you. That would definitely save you some trouble
edit: I see in your sig that you have already done the 500e swaybar mod, so you are already one step ahead!