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Machining Referance Material
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<blockquote data-quote="Tazza" data-source="post: 12644" data-attributes="member: 82"><p>Hey Luthor, these are kinda beefy bushings actually, not the split ones like i have on my 743s. You are rite that the housing is sort of thin, but easily enough to machine a bit more to make the hole round and parallel again. I can then install bronze or nylon again. Honing is an option, but it would be very slow for someone to do, there is quite a lot of wear for some reason.</p><p>Essentially my idea was a boring bar to fit in the chuck of the lathe. Building it with a pilot to hold it parallel. Using my tail stock to hold the end of the housing flat (the pilot will help here too) then using the tail stock to advance the housing into the boring bar to cut the metal while holding the housing against the tail stock as a stop. I just hope it can hold the housing steady enough while its cutting. Even if it tie it back to the tail stock for stability. Both housings have the same wear on the outer sides, the part closest to the main frame. The inner part isn't worn anywhere near as bad.</p><p>Just another job to do i guess. I just need this weather to clear up so i can finish pulling the machine down to paint and get it moving a bit! its bees sitting for almost 6 months. All i have done is got the engine running and the pump cleaned and i flattened the swash plates while inside. The engine still needs a coat of paint and a pile of hoses!</p></blockquote><p></p>
[QUOTE="Tazza, post: 12644, member: 82"] Hey Luthor, these are kinda beefy bushings actually, not the split ones like i have on my 743s. You are rite that the housing is sort of thin, but easily enough to machine a bit more to make the hole round and parallel again. I can then install bronze or nylon again. Honing is an option, but it would be very slow for someone to do, there is quite a lot of wear for some reason. Essentially my idea was a boring bar to fit in the chuck of the lathe. Building it with a pilot to hold it parallel. Using my tail stock to hold the end of the housing flat (the pilot will help here too) then using the tail stock to advance the housing into the boring bar to cut the metal while holding the housing against the tail stock as a stop. I just hope it can hold the housing steady enough while its cutting. Even if it tie it back to the tail stock for stability. Both housings have the same wear on the outer sides, the part closest to the main frame. The inner part isn't worn anywhere near as bad. Just another job to do i guess. I just need this weather to clear up so i can finish pulling the machine down to paint and get it moving a bit! its bees sitting for almost 6 months. All i have done is got the engine running and the pump cleaned and i flattened the swash plates while inside. The engine still needs a coat of paint and a pile of hoses! [/QUOTE]
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