Jump to content

Fuel sending unit question

Recommended Posts

I bought a 1988 - 23 gal tank from a JY. I have a '87 SWB. Can I switch everything (pump, sending unit, vents) to a new 18 gal tank?


Pump, yes. Vents, yes. Sending unit? It's a different part number, probably just the float arm difference. Might require some creative fabrication since you are going to a shallower tank, or a simple arm/float swap between the two. Should be obvious when the two sending units are side-by-side. Saw Jim's post - I don't think the the tank depths and float arm swings are the same.

Link to comment
Share on other sites

Not to say they haven't been swapped at some point in the past, but in looking for a sending unit that wasn't rusted through causing a leak, I have found short arm ones in all three sizes tanks with no rhyme or reason to what was in what. The only long arm sending unit I have (out of four I own and another three I left in the junk yard because they were toast plus one for a 2.8V6 that didn't have a provision for the fuel pump) is the one in the 23 gallon tank that originally came on my 87 Pioneer.


I did found that the short arms units will read full when the tank is anywhere above 3/4. Possibly because the arm can't go up any higher.


I used the best looking unit I had (which still had a pin hole rusted through, fixed the broken return line (Wildman has a read up somewhere on here), coated the inside and outside of the cover with seal-all to fix the leak and swapped my long arm sender over to it.

Link to comment
Share on other sites

Your right Don. I knew better. I'm just going to blame it on a mental lapse due to being at the puter late at night instead of in bed. Got all 3 tanks and was going to line them up and measure and take pics but got sidetracked with a sick horse. Maybe tomorrow. Had to have the horse put down. Vet couldn't do anything for her.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Create New...