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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Machining plated barrel-gasket surfaces
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[QUOTE="SFO, post: 158533, member: 21864"] [b]Old habits die hard...[/b] Eric, thanks for the heads-up. I am used to clipping the gasket surfaces in one chucking to create parallelism. Machining it true to assure squareness.(Like your mandrel) Upon assmbly I found the squish to be allready at .045" w/gasket. Didn't leave me room to fuss around but I spun it and checked the barrel with indicators and it looked good. I cut 40 grams out of the 97mm piston and pin. Before assembly I checked the cyl/piston clearance and came up with .0033" clearance. I misplaced the suggested clearance #'s for this set-up and am wondering if the piston closed up or grew via the lightening process. I think that three and a half sounds right for this bore, and am not worried. You sure got a staight hone job in it. Straight and round within .0002"! [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
Machining plated barrel-gasket surfaces
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