See my profile, Other CJ 5/7 answers in the forums.
Had '79 CJ 5 in 1983 (2nd of 7) Still have 6 and 7 All have been my primary drivers---never had a car!
Can assist you with all CJ problems---I know my crap!
Will send you a "PM" (private message) very soon! It will maybe help you with other stuff!
I HAVE THE 1979 AMC SERVICE MANUAL---IT IS THE BEST MANUAL I HAVE! BREAKS ALL INVOLVED DOWN INTO MOLECULES--ON A 2nd GRADER LEVEL!
To answer your question---straight out of the manual
FUEL SENDING UNIT RESISTANCE CJ :
Are you putting in a larger tank. Make sure you check up and down of the float, with top and bottom of tank.
On a fully adjustable unit, I hook the "Flange" on a table and measure up and down with a tape measure. Then I "Tweak" the pivot to exact center, and adjust the float out or in to get exact travel.
If this is a OEM type, bending the arm, can only get you close. Not exact.
Either way, I "jumper wire" over to the tank wires and TEST FULLY for operating the gauge---before I install it in the tank.
Remember the gauge moves slow---you may have to test Empty--1/4--1/2--3/4/--Full letting gauge react for 3-5 minutes, at levels, to get an accurate reading.
Saturday, June 19th, 2010 AT 11:12 PM