Hey Tom, Yes they are the evil & dreaded Zeniths.
I know there is a proper tool to measure the amount of fuel that gets squirted out. Anybody knows if I can get / make one? Looks like the way the are adjusted is by bending the leaver up & down http://jaimekop.com/CarbManual/Page06-07/Fig3.jpeg correct? or are they moving it lef to right ? Thanks George -------------- Original message -------------- It sounds like your carburetor acceleration circuit is not pumping enough volume. These are the Zenith carbs, right? IIRC, they have an acceleration pump. Make sure the pump is delivering a proper volume of fuel. I think the pumps can be adjusted. It has been a long time since I worked on these carburetors: I had a '67 230 with dual Zeniths about 10 years ago. Thomas E. Potter Telephone: (713) 215-2877 Fax: (713) 215-2551 Mobile: (832) 794-0536 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Tuesday, September 13, 2005 9:43 AM To: benz Subject: [MBZ] Choke sputter bunny hop Hi all, I'm still tring to dial in the carburetors on my 72 250 M130 W114 (I need to put this in a signature or something). I noticed that starting from a stop, under light acceleration everything is OK. On the highway acceleration is effortless and seams endless, but sometimes, starting off from either a stop or rolling slowly, if I acclerate a little hard, the engine starts to sputter. I can usualy fix it by hitting the kick down button located under the accelerator pedal. This morning I did find that the forward choke was a little sticky. I'm going to spray it with some silicone lube this afternoon to see if it fixes it, unless someone has a better alternative. Could this be causing it? anything else? Also Just as an FYI, the "emmission" portion of the vehicle was fried so I have routed the forward vacuum connection to the advance on the distributor. Any help would be greatly appriciated. George
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