Gas cap key barrel question

[Armaguidon13]

Please help me to determine if it's the good key and barrel for a R100RS 1977 gas cap (I've bought this part many years ago on Ebay)
The other question is how to pull out the old barrel that I've got without key in my gas cap ?





I've a lot work to give a new life to this 77

[Jean]

Bike looks really NICE!!
The pictures of your gas cap/key and barrel didn't load.
Maybe you could cut off some picture, not of the item, and try again?
I have changed the barrel (we call it the lock-cylinder) from one cap to another.
You have to take the insides of the cap apart to do it. You must be careful to not destroy the metal "can" part.
IT IS POSSIBLE.

[Armaguidon13]

Thanks, but pics are better than reality !

Pic link for lock-cylinder

http://i29.servimg.com/u/f29/13/49/91/17/img_1410.jpg

http://i29.servimg.com/u/f29/13/49/91/17/img_1411.jpg

the gas cap is a simple /7

http://i29.servimg.com/u/f29/13/49/91/17/img_1413.jpg


But the question is how I put in parts the gas cap to change the lock-cylinder ?
On an other gas cap, I've bent the upper lip of gas cap, locked the mecanism with a screw and put all that again.

Any other method ?

[SteveD]

Mick, the cap is a press fit. It'll pull apart.

http://www.largiader.com/articles/gascap/

[Jean]

Thank you Steve. I've not learned how to put pictures in the forum.
I also don't have the parts separated as you do.
Mine was long ago put back together!!

[Armaguidon13]

Thanks for the pic, link and information