[Crossle]

Didnt know where to post this as it might be electrical it might not!

My Water Temp gauge is causing me some issues. When I first got the car a few months ago it did sort of work 80% of the time but it bounced around a bit from cold before settling and sometimes would sit at zero for a while before coming back in to life. Then it changed to flicking up to 3/4 straight away from cold start, then drops to half for a few minutes of driving (when the engine clearly isnt anywhere near that warm yet) before falling to zero where it stays. I think the general pattern is that when its hot it does nothing at all, when its stone cold it reads but not correctly.

I changed the sender which didnt sort it. I was then told that a common fault is that the pins on the back of the gauge corrode and the gauge doesnt pick up the signal. So again I've tried this, had all the clocks out last night, sanded the nuts and the washers down that attach to the back of the clock, sanded the base plate connections down,put it all back on, still no joy, tried diffident configurations of putting two washers on the back, no washers, two nuts, again no luck and nothing has changed.

Any idea's what this problem could be? I am thinking that I might just buy a whole new gauge cluster because the digital clock and the mileage counter is not working on the current one anyway. I had a look on ebay however and I am not sure what sort of variation there was in the clusters, by eye they look the same but are the points on the back all the same. Would a V6 Coupe Cluster (for example) fit my B3 2.3 Coupe?