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I recently adapted a four speed Series E gearbox to my 1937 Sports which has proved very successful. It certainly gives more flexibility at traffic lights where often as not you have to move off at 2 mph and with a three speed box have to decide whether to double the clutch or stop to obtain 1^st gear. With four speeds the second gear will enable you to crawl along at low speeds not having to engage 1^st gear.

However I struck a problem not envisaged when the sports went back on the road. The speedo was reading 20mph faster. Following along in a recent Morris run the needle was going off the clock, so looking at getting the speedo recalibrated I was quoted $200.

After some thought I wondered what the difference was between the Morris 8 and the Series E speedo, even though one was twice the size. Borrowing one of each from the parts shed which were broken, and removing them from their casings I found they were exactly the same unit.

Even the calibrations were the same and in line with the E having a longer needle. On the strength of this I was able to screw the early dial on to the E mechanism, shorten the dial needle and reassemble into the early casing.

For less than $20 which was the cost of a good E speedo, the vehicle now reads correct again.

Wasn't I lucky to strike a later speedo with the same mileage as my original!

I thought this might save someone else spending money needlessly.
 

Cheers

John Henderson.