The clock in my 1990 Mav keeps perfect time. However it only tells me when it thinks I need to know. In other words the read out goes on and off intermittently for no apparent reason. I suspect it likes being cooled because for the first 6 months after I had the Aircon fixed it worked non stop. It seems to like holidays too. When we go to the beach every Christmas it works most of the time. About a year ago I dismantled the dashboard to replace the heater core and noticed that the clock had a funny discolouration in one of the cells. Is it worth looking for a good one from the wreckers or are they all a bit zen?