The fuel gauge on our 1989 Nimbus 2600 has been playing up lately and I suspect the (VDO) sender to be at fault (probably the float sticking). Lifted the cockpit sole at the weekend to get at the tank and I'm not sure how to take the sender out to inspect it. Logic says remove the five screws and just pull it out, but I can't see how I'll be able to negotiate the float mechanism through what seems quite a small hole ! Also not sure if they are screws - or bolts with nuts on the inside of the tank. Failing that it looks as though I may have to remove the whole inspection panel surrounding it. VDO have given me details of the updated sender as mine is now obsolete. Any help or guidance would be greatly appreciated.