Expert: Carl Brandt - 4/30/2004

Question
Sorry, I realize this is not your line of questioning but I'm at my wits end.  Here's the problem.  I replaced the original carb with another carb from a 70's jeep.  This was done when I was in a fix a few years back and my jeep hasn't ran good since.  I just purchaced and received a new weber carb for my jeep and everything is screwed up because all the tubes and stuff for my original carb arre no longer there or are probably plugged into the wrong place.  For instancce, my jeep bible showes the float bowl tube going from the carb and into the charcol canister.  The problem is the line coming from the gas tank vent was plugged into the old float bowl.  I now see that's probably bot right.  Anyway, I guess I need some direction on hom to make things right other than the jeep bible which is sort of confusing.  Any help would be much appreciated.  I have an 84 jeep cj-7 with a 258 six cylinder.

Answer
Mike,

This is a tough one, unless I could be there to help trace out the missing vacuum lines.
The first thing that I would suggest that you purchase a repair manual (around $20) for your
model Jeep.  These manuals give step by step instructions on most repairs, along with diagrams of smog controls, such as some of the vacuum lines.  These manuals can come in handy for future trouble shooting.  They can be purchased at most auto parts stores.  Depending on what you want to do, either set it back up to stock, or run a different carburetor will determine how many vacuum lines and hookups you will need to retrace.  When you modify with, other than stock components, you need to check all of the other engine functions such as the timing.
The next thing to check out, would be to see if you can find a 4x4 club in your area, preferably one that specializes in Jeeps.  Usually members have run into similar problems, and are more than willing to help out on projects like this.  

  Carl