Fuel gauge sender

[Sen Mora]

My fuel gauge shows full all the time, problem is in the sender unit. I have the replacement unit (in the meantime I am and will continue manually log engine hours) but would like to know if in order to replace the sender I have also to open the clean out cover next to the sender? It is a 40 gal tank B41-2003 , one of nuts molded in the plastic is turning an idea how to fix that would also be appreciated.
Thank you.

[Sen Mora]

It looks like no one had to change the fuel tank sender. Hard to believe.

[tiger79]

You should be able to withdraw the sender through the sender hole.  I don't know how you'll fix an insecure nut.

[Noelio Abrunhosa]

hi. there is a likelywood you might have to replace the tank. if you succeed in removing the faulty nut without damaging the tank, you can use a captive nut. like this one

. good luck and keep us posted how you got on. to remove the sender drill out the screw,while hoovering to avoid swarf getting into tank.