Did you take it apart as shown here?

http://www.peachparts.com/Wikka/W123FuelSender

Or did you just dip it in a tub of brake cleaner?

When I took mine apart I found there was loads of gunk in there that would in no way be shifted by brake cleaner through the little holes...

W123 300D Fuel tank sender question





But that is nothing compared with post #22 in the same thread!

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!