Wiggy,
 
I asked the question   1.  To determine if my findings were consistent with observations by other Capri owners.
                                2.  To remind drivers to know what information the needle on the gauge is conveying and when a response is required.
 
The temperature gauge and the fuel gauge are of the same electrical specification with only a different dial.
For the electrical minded the fuel gauge requires a sender resistance of 20 ohms to show half full and 10 ohms to show full.  The temperature gauge requires the same resistance values.  The fix is to find a temp sender that has a resistance of 20 ohms at 82 degree C and 10 ohms at 100 degree C.  
 
Regards
John
 

John, I have a dumb ass question... I have no electrical aptitude at all....
If you could find a perfect match sender unit for the gauge (20 ohms @ 82 degrees) should the gauge then read exactly in the middle, and into the red at 100 degree (10 ohms @ 100 degrees)? assuming my dash gauge was ok
M

Thanks John I knew it would be something we can all learn from. Cheers.