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Happy 4th everyone!

During disassembly, I’ve noticed a small amount of hole-elongation on the drivers.  To mitigate this, I thought BB’s would be a long term solution.  In my ignorance I’m thinking “Ok, drill a slightly over-sized hole then press or solder bearings in place”.   I need at least eight bearings per side.  At two locations per side I’ll need to have three bearings on the same crank pin due to triple rod placement, are there bearings narrow enough to do this?  My motivation here is to prevent further deterioration of the crank pin holes on the drivers.  I don’t intend to run this engine a lot so maybe it’s not worth the effort which may be considerably above my current skill set.  Opinions, advice?

TIA,

Chris

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Don't do it.  If the slop gets too much, carefully enlarge the hole and solder in a short length of K&S brass tube.  Or just fill the elongated area with a layer of solder.  Consider a drop of oil on the pins now and then?

Ball bearings are wonderful in precision applications.  Model side rods are not a precision endeavor.  I use them only on worm shafts.

bob2 posted:

Don't do it.  If the slop gets too much, carefully enlarge the hole and solder in a short length of K&S brass tube.  Or just fill the elongated area with a layer of solder.  Consider a drop of oil on the pins now and then?

Ball bearings are wonderful in precision applications.  Model side rods are not a precision endeavor.  I use them only on worm shafts.

True, true!

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800-980-OGRR (6477)
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