Find the little steel ball bearings that act as check valves. (I think they are at the bottom of the pump bores). Tap them lightly with a flat-end punch, to seat them. When you re-install the pump plungers, run your fingertip around the bottom of them to flare them out, then ease them into the bores so as not to fold them up. Joe Savard, Aged Test Driver Chrysler Carburetor Lab In a message dated 7/22/2012 12:43:14 P.M. Eastern Daylight Time, daryl1086@xxxxxxxxxxx writes: I've just finished rebuilding both carburators on my 1961 300-G. The acceleration pumps just dribble a little fuel when pumping the throttle and the car boggs when stepping on the accelerator. The pump plungers seem to be too small for the pump bore. I have adjusted the plunger stroke for as much stroke as possible. Does anyone have any solution or tell me what I did wrong. Thanks for the help. [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/