Thanks for all the positive comments
I was expecting more "Oh you can't do that to a Merc blah blah".
The whole swap is pretty easy. I have also got a '94 BMW 325i with a Toyota 1JZ-GTE (twin turbo Soarer engine), 280 BHP.
Richard, that is an interesting project there. Incidentally, a couple of years ago I nearly bought a series 3 Jag with the same engine I am putting in the W126. When I drove it, the engine just didn't 'suit the car'. I used to have a Jag S3 with the 5.3 V12 which was lovely, the Toyota engine was too vocal and high revving (IMO).
There will be some issues with odometer etc, I will have to use the rear assembly from Toyota with the original facia.
The RD28 diesel was a JDM (Japanese Domestic Market) engine, I think used in such beasts as the Nissan Laurel. Its a 6 pot non turbo, making as I said earlier about 10 BHP. Credit to Nissan for making a 6 cyl 2800cc engine than makes so little power. I think a turbocharged variant was used in the Nissan Terrano.
I will endeavor to keep this thread updated as things progress.
Regards,
INTJ.