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quote:Originally posted by gatorjawsHello, does anyone know what the numbers on the tag that is on the cold start valve mean. I have two units(on the bench not on the car) & one says 2/3 & the other one says 2/4?
quote:Originally posted by isofastHello GatorJaw the coldstart valve I took off of my parts car... ( a late 250SL ) is stamped Bosch EP/EV 2/4Also I found a brand new one along with many other NOS parts in the trunk. Also stamped EP/EV 2/4 I was thinking of keeping both for spare but I think I might ebay one if you need one let me know. They come up on ebay from time to time. A member of our local group Scott K. rebuilt his. Scott told me that the spring (about the size found in a ball point pen) that you see in the picture can get eaten up over time by the gasoline. His was so he just replaced the spring with one from the hardware store and his valve then worked. The spring pushes on a little ball check valve that makes a loud click when you fire your car up. Also sometimes the nozzle can get carbon on it and not fog fuel properly. Maybe someone knows but I think the Mercedes fuel injected sedans of the day have the same exact valve setup. A good boneyard pick part.Good luckBest Regards Ernie