Replacing the Rubber seal around the front brake piston on a Triumph TR4

>How do you replace the rubber seal around the piston on the front brakes of a TR4?  There are no tools for do this that I know of and they are difficult to fiddle into place.

I made a little tool:
I found a tube about 56mm in diameter, shortend it to 1/2" and pushed the tube into the rubber gasket so that only the outside lip is on the tube.   Now it is easy to fit the inner side of the rubber to the caliper. After that just put in the the piston, that is easy done by hand. Now remove the tube, push the outer part into the groove - that's it.

Done in 5 minutes/seal.

Marx

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