Ok, my odo was doa, so I bought a used instrument cluster from old Blighty, I'm in Canada. I swapped instrument clusters whole, no mods, and noticed the following strange things:
the high beam shows blue indicator when lights are on low beam, and then when on high beam the indicator light is off. The blinker lights are "on" on the dashboard, and then flash when active, otherwise working fine. Finally, the odometer read 6.8miles after a 9.0 miles trip. And the speedo seemed to under represent my speed. Never seemed to go past 40MPH, even though I swear I was doing 50plus. Hmmm, any ideas folks?? I'm thinking the sensor sender on the speedo circuit needs to be matched with the MPH instrument cluster? No idea actually,....
My next move was going to be to take the tach/odo off the british cluster, and insert it into my Canadian cluster...