You will need a shim on the very end of the arbor. The part that bottoms in the bore of the barrel.
Here is one way to help you understand what is going on.
To check the arbor slot, Place a standard buisness card in the gap. No wedge in barrel. push back the barrel against the cyl. This will be where the barrel needs to stay when the wedge is in place.
Then look again through the slot with no wedge in it. The back of the slot in the arbor should be just very slightly back from the back of the barrel slot. If it is ahead then you will need to file the back of the arbor slot towards the cyl. till it is. Try the wedge in the gun. (leave the card in the gap) This will tell you wether or not to file on the wedge. But dont file till you decide if you need a shim on the end of the arbor.
Then with the card out of the gap push the wedge back in. if the cyl gap closes and the card wont go in you will know that you have to shim the end of the arbor in the barrel hole.
this is my walker. you can see that the arbor slot is about even with the back of the barrel slot. I should take a couple passes with a file at the back of the arbor slot too.
Here is one way to help you understand what is going on.
To check the arbor slot, Place a standard buisness card in the gap. No wedge in barrel. push back the barrel against the cyl. This will be where the barrel needs to stay when the wedge is in place.
Then look again through the slot with no wedge in it. The back of the slot in the arbor should be just very slightly back from the back of the barrel slot. If it is ahead then you will need to file the back of the arbor slot towards the cyl. till it is. Try the wedge in the gun. (leave the card in the gap) This will tell you wether or not to file on the wedge. But dont file till you decide if you need a shim on the end of the arbor.
Then with the card out of the gap push the wedge back in. if the cyl gap closes and the card wont go in you will know that you have to shim the end of the arbor in the barrel hole.
this is my walker. you can see that the arbor slot is about even with the back of the barrel slot. I should take a couple passes with a file at the back of the arbor slot too.
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