Hi
I'm the owner of a 404.1 UNIMOG with the 280se motor from a w116mercedes car. the motor with the fuel injection&double cam, yesengine no.:110985 1000012)
now there's been some modifications done to the inlet manifold to make it fit, and the injectors apparently are from a 450slc motor. i bought this from a friend of mine, a 4x4 mechanic, who said he'll finish the conversion for me.
now, at first the motor was starting, idling was ok, but it wouldn't pick up revs if throttle were opened. I had the fuel pump tested, and it delivers 5-8 bar of pressure which apparently is normal, so we cleaned all the injectors, after which it sounded better. it starts ok, picks up revs, but now the motor runs very unevenly. now all that's left seems to be the fuel distributor, and everyone i spoke to said NOT to open it.... and a new one is on the expensive side... my question is: can you give me info on these mechanical fuel distributors, how can we check/adjust it? (my mechanic mate's not into fuel injection systems...., he wants to put two SU carb's or a weber on) I'm keen on keeping the fuel injection system, since if it works, I reckon it will give better performance& fuel consumption. Afterall, a team of german dudes spent some good time sussing the system out, it works on a zillion mercs, and I don’t know of any double-overhead-cam 280 motor that ever had a carburettor-:would a carb even work?, if so, where does one put it ( besides the amount of space left in the enginebay after getting that motor into the mog....) to ensure all cylinders get equal amounts of fuel (and all that technical stuff the german dudes spend their time on...)
i'd appreciate some thoughts on carburettors vs fuel injection, and maybe some info/references on these fuel injection systems
Maybe a reference to someone in South Africa who could have a look at it for us?
Appreciated,
floris,
Gauteng, South Africa