Does anybody know how to replace the small "O" rings in the Shaw fuel cap Part #457 Type III fuel caps? These came with the O and N bladders for my 1966 M20C. It looks like there are 2 pins holding the cap together as opposed to screwing the end off as many caps do. I have the O rings but can not figure out how to get the caps apart.
Thanks for any advice.
Wally Moran