Fuel gauge again

[angus]

Thought I had problem sorted,sometimes the needle registers how much fuel I have other times empty even if I have fuel.I disconnected the tank and bridged the loom wires and needle only registers half way on gauge I think according to manual it should register full.Could the fault be in clocks end,if I take out the sender unit do I need new gasket to seal it and how do I test sender unit.Any help would be great.Conan

[Nessism]

The sender unit seal is a thick rubber gasket. Most likely it can be reused in a pinch but I'd replace it since it's a 35 year old rubber part that's exposed to gasoline.

The factory service manual has a troubleshooting guide for the fuel gauge, including a resistance chart for the sending unit. You may want to check it out.

[angus]

Does anybody know is it gasket 23 or 27 that I need to replace after testing sender unit.Also somebody mentioned a site where when you locate the part click on the number and it tells you what models it was used on does anybody know what site it is.Conan

[Nessism]

Part 23 is for the sending unit. 27 is for the sending unit cover (less important).

Partzilla has a nice parts fishe. You might have to sign up to see all the info though.