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Re: 9N oil pump bushing
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Oilite is made with oil encapsuled into bronze. It is made to be self lubing.
The bushing material you should go for is silicon bronze. The silicon content gives it great wear qualities.
The method of installing and then reaming in a mill sounds problematic to setup square and centered.
If you use a single setup (don't unchuch and rechuck) with a lathe to machine both the inner and outer surfaces, the outside of the bush will be perfectly concentric to the inner bore. If the pump housing was manufactured correctly you should have no problems.
Mount a bar with the full length of the bushing plus 3/8 inch outside the chuck. Drill, bore, ream deeper than necessary, testing for fit. Then finish the outside, chamfer etc. and part off.
If you purchase a bushing with a tight center hole, a lathe is still the easiest way to ream the center, before installing the bushing. hth
This post was edited by russb wa at 21:41:58 02/01/13 2 times.
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