I see sets of 4 keys advertised that fit all model T's. How can 4 keys cover them all? How can one key fit more than one switch?
Most of the variation in keys is in the location of the groove. There are only four variations of the shape of the teeth in the key.
The master keys are so thin they have no groove, so one key for each of the four teeth configurations covers all of the possible combinations.
Thanks Mark. This is one of the things that make me wonder how you know that info. Not questioning, you understand, just asking.
Tommy, I've been fooling with Model T's for 52 years and I still learn new things from the forum and elsewhere.
You learn stuff by reading thru all the old posts from all previous years.
So VERY, VERY true !
The master keys tell you what numbers they fit. I believe each master key fits five different numbers. The numbers are stamped on each key.
Back around 1952 I inherited a large number of Model T keys from my grandfather who had a fleet of TT trucks for his furniture factory. I didn't have a T at the time but I had a Model A. I put a different floor in the bottom of the turtle back on the A and instead of rivets, I used small bolts and nuts. I used the Model T keys for washers! So if someone finds an early January 1929 Model A with red steering wheel and parking brake in front of the gearshift with a pinch handle similar to a T handle with cloth top around the back window down to the belt line, with a 1930 rumble seat jerry rigged to fit with the floor of the rumble seat fastened down with small bolts and Model T keys, you might have found a small fortune in original keys. I sold the A about August 1953 in Montrose, Ca near Glendale.
Yeah. But none of the master keys fit my '14 runabout :o(....;o)