John Larkin
Member
I recently installed a used Australian km/hour speedometer in my RHD UK specification 1974 Rover P6B automatic. Today I discovered that the odometer is OVER-reading distance by 16.8% and the speedometer is UNDER-reading speed by 14.4% (i.e. 0.856 of actual distance). There is a relationship between these two errors:- +16.8% = 1.168 times actual distance, and 0.861 = 1/1.168.
I have always thought that if your speedo over-reads then your odometer also over-reads by the same amount, and vice-versa for under-reading. My two errors seem to be inverse ratios.
I'm flummoxed!
Has anybody got an explanation? PLEASE!!!
John Larkin
I have always thought that if your speedo over-reads then your odometer also over-reads by the same amount, and vice-versa for under-reading. My two errors seem to be inverse ratios.
I'm flummoxed!
Has anybody got an explanation? PLEASE!!!
John Larkin