Greetings,

I have a quick question in relation to my gas gauge that recently stopped working. I *think* I've narrowed the problem down to the connection at the tank sending unit.

I popped the gas tank inspection cover off in the trunk of my '84 240 DL and played around with the wire going into the tank. The gas gauge went from not working to reading slightly. I'm assuming it's not reading more b/c the connection is dirty and there is thus resistance.

The wire has a white plastic plug/connector going into the top of the tank... can I pop this wire off to clean the contact/connection where it enters the top of the tank or will I risk breaking it? Is there a trick to remove it?
Is this wire solely for the gas gauge? (It's a carb B21 if that makes a difference).

Thanks,

Jaak

"can I pop this wire off to clean the contact/connection where it enters the top of the tank"
No. That plastic is an insulation ring around the post that goes through the sender cover and to which the sender float wire is soldered (on the gas side). If you pull it you'll break the seal around the post as well as damage the wire that is attached to the post on the inside.

"Is this wire solely for the gas gauge? (It's a carb B21 if that makes a difference)."
Yes. FI systems have an in-tank pump and so will have an additional wire.

Pulling the sender to have a better look at it, requires removing the bung nut. Try a flattened piece of 1/2" copper pipe (non-sparking) to rotate it using a hammer. You may have to do some soldering so it will need to be distanced from the gas.


--
1980 245 Canadian B21A with SU carb and M46 trans

Thanks for the info!

Cheers,

Jaak