BenzWorld Junior Member
Date registered: Jul 2012
Vehicle: 1969 Mercedes-Benz W108 280SE
Location: Johannesburg South Africa
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Hi. Congratulations on your car. I bought a W108 280SE about a month ago. It also stood for a long time, 6 years. Regarding the fuel injection pump, they are very reliable and seem to hold up to the test of time quite well and seem to fail only when fiddled with. We're talking mega bucks replacing the injector pump and they are hard to come by. Its a complicated piece of machinery and everything is finely tuned so don't bargain on your local mechanic fixing it, let alone yourself. Mine was only pumping fuel out of 4 of the 6 outlets leading to the pressure pipes that run to the engine block. I proceeded to phone Bosch and I ended up with a very bad experience with a huge fight over the phone, seeing as I'm only 20 some of the "older" guys don't have time for the "unexperienced problematic youth of today". Anyways he must have had a bad day or what so ever, I decided to open the pump up and have a look at it myself seeing as "nobody wanted to touch the pump or offer me any advice". Took me quite a while to remove it from the car and it was quite messy. Cleaned it up first, A MUST DO, and removed the plate on the side to reveal the "plungers(correction)" and cleaned everything there. Oiled the "plungers" and closed it up. Sent a little bit of compressed air, VERY LOW COMPRESSION, and it seemed to clean itself out. Works like a charm, all 6 outlets "spurt" petrol out by simply turning the system by hand and adding small amounts of CLEAN fuel in the inlet. So my point is, sorry for the long story, what is the problem regarding the injection pump?