77 is probably K-Jet or KE-Jet (my 75 Audi Fox was K-Jet). Couple funky idle drop down servos and lots of hoses -- all of which have to be completely sealed for it to run right. KE-Jet has a "frequency valve" to control the mixture in the double chamber fuel distributor, and they can be a pain. Essentially a modified fuel injector.
Once you get it all sorted out, it's great. Only trouble I had with my Fox in the fuel system was a bad injector causing lumpy idle and the fact that blowby would freeze in the venturi and flood it out in bitter cold weather. It was disconnected when I got it, and stayed that way after I figured that out. Had a fuel pump fail, otherwise very trouble free. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
