speedometer rebuild?

Had to work Sat.
But got a few hours in today.
Pulled out all the gauges.
I'm thinking I will replace all the guages except the speedometer.
Wanted to open it up and check it out oil it or whatever.

But it looks like the way its assembled is they crimped the chrome bezel around it???
is there anyway to get it apart? I think I might ruin it if I take that off.

I never drove it so cant say for sure but I think from fooling with it that it works.

Woundering if maybe I should just leave it alone?

 

you are right, uncrimping the bezel is the only way to open it. just do it carefully and the rest is fairly simple. there are 2 screws in the back of the housing that hold the guts of the speedometer into the case, take them out once the bezel is off and you can get to the rest of the parts. HTH