1971 Fj 40. I had to replace my gas tank. Bought an aftermarket tank. Came with an aftermarket sending unit. Testing sending unit (before installing it) shows that when float is totally extended and gauge should read empty, the gauge shows still half full. Moving float up to about half makes the gauge show full. The OLD sending unit works perfectly. But, the old sending unit is slightly too big around the top of the neck (see photo) to fit into aftermarket tank. I could use dremel tool to widen the throat of the tank (about 1/32 inch) and it should fit, but would rather not do that. The aftermarket sending unit shows 120 ohms when fully extended and about 20 ohms when in "full" position. ANYWAY: Has anyone run into this issue? If so, what did you do? Any ideas? Would one of the "generic" sending units you can buy (with 180 ohms when in empty position work? Meaning, would a generic unit have the attachment holes lined up right?
any thoughts appreciated!
any thoughts appreciated!