Do you fellows use a cylinder brake hone to cross-hatch the piston cylinder? I want to install a ARH kit in my HW35. Any and all advice is appreciated. I've never done this before. Thanks in advance.
Brake Cylinder Hone
- Thread starter Flintstone
- Start date
I've seen tutorial posts where a dowel with a slot cut cut lengthwise is used in a drill. A strip of sandpaper or emery cloth is slid into the slot and spun in the compression chamber and worked forward and rearward to crosshatch the inner walls. I don't recall what grit paper was used. I chose not to do this when I rebuilt my R9. Some google searching for rebuild how-to tutorials may help. Unfortunately, a lot of really good tutorial info was lost when Photobucket decided to charge for their image hosting. The Yellow forum switching platforms has also made some great info hard to find.
Good luck on your rebuild!
Good luck on your rebuild!
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For all the help on the web for rebuilding airguns very few have the exacting requirements and details needed to accomplish the task. No doubt old forums would have helped a lot. Watcha gonna do. Thanks for responding John.
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The stones on the hone are too rough- unless your compression chamber is rusted. Wrap a piece of Scotch Bright scrubbing pad around the hones. That's all you really need to polish up the interior. You'll likely need an extension to get it to reach far enough.
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The main reason you hone a cylinder is to break the glaze ( shine ) in the cylinder and create a cross hatch pattern where the seal can grab on to and seal. I have rebuilt hundreds of hydraulic cylinders, brake master cylinders and wheel cylinders But no airgun cylinders.
i used a wooden dowel rod on small diameter cylinders and put 2 hack saw blades in my saw and cut a slit down rod about 3 inches long take some 400 to 600 grit wet / dry sandpaper take half or hole sheet according to size of cylinder. Fold the paper up and slide in slot and wrap around rod and oil liberally with a light oil and run it in and out of cylinder to get cross hatch pattern.You can put a zip tie on the end of split on dowel so paper does not come off dowel. The more paper and tighter wound the paper the more pressure on cylinder. Use this information with your own good judgement. I wouldn’t want to be responsible for damage to any ones property MM
i used a wooden dowel rod on small diameter cylinders and put 2 hack saw blades in my saw and cut a slit down rod about 3 inches long take some 400 to 600 grit wet / dry sandpaper take half or hole sheet according to size of cylinder. Fold the paper up and slide in slot and wrap around rod and oil liberally with a light oil and run it in and out of cylinder to get cross hatch pattern.You can put a zip tie on the end of split on dowel so paper does not come off dowel. The more paper and tighter wound the paper the more pressure on cylinder. Use this information with your own good judgement. I wouldn’t want to be responsible for damage to any ones property MM
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