Pagoda SL Group
W113 Pagoda SL Group => General Discussion => Topic started by: srisant on May 20, 2016, 03:33:11
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Hi, my fuel pump PES 6 KL 70/120 R11 is in bad shape and it is very difficult to get one. I have seen several pump for 250sl PES 6 KL 70 B 120 R18 works on 230sl with adjustment of fuel level? If not can any of you suggest a reliable place for me to get it fully rebuild or exchange? Many thanks
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First check to see if both pumps have their own oil supply or if the later one has the engine oil circulating through it. I believe the later pumps can be used if you have someone really good at setting up the mixture adjustments.
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The R18 pump does have the self contained oil supply with dipstick. As far as it working on a 230, it will "work" but you may run into problems with the air/fuel curve that is governed by the different mapping of the space cam.
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Used pumps are out there. I wouldn't put anything except the right part on it.
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I'm with Dan. The "Space Cam" is a 3 dimensional steel map of the fuel requirements that takes into account the anticipated load and speed of the engine. Putting a pump on with a different space cam in it opens up a lot or room for problems. If you consider that you already have a used pump and that the youngest of these pumps is 45 years old you will probably be on borrowed time anyway. you might be able to get by for a while but eventually you will be better off rebuilding what you have. Hans at H and R fuel injection or Gus at Pacific fuel injection are both names that seem to come up when rebuilding is needed.