MTFCA Forum

Hi Russ Thanks again for your reply. I managed to swap the hair springs. In fact I became so confident that I removed and replaced it several times to fine adjust the speedo's performance. Your point about setting the hair spring 'zero' load to be very light, was the key to problem. I found the perf...

Hi Russ

Thanks for your note

I am daunted by the job of handling such delicate and small items.

Are there guidelines on how to change the hairspring?

Jeff

Hi Russ Thanks for your reply. Your comment about the spring gave me an idea. My working speedo is made of a body, frame, mechanism and magnetic cylinder from one speedo, but the speed drum and hair spring mechanism are from another speedo. So maybe the hair spring and magnet are not matched because...

I live in Melbourne, Australia and have a lovely 1914 Speedster. I have fitted a Stewart Model 100 speedo and swivel and gears (60 / 16 teeth) on the front wheel. I have serviced both the speedo and the swivel using the MTFCA book Speedometers as a resource. The speed drum rotates freely and smoothl...

Thanks for the replies

Very interesting

I have this exhaust attachment which seems to be for a whistle but I cant find any information about it. There is a foot control activator on the floor. The embossing on the back of the unit looks like Cooper, but may not be. I suspect that the whistle itself is missing. Does anybody know what it is?

a second image

Thanks for the comments about sealing my RAJO head.

Thought you might like to see the unusual oil delivery mechanism and the seal I created from a rubber extrusion.