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Old 12-16-2012, 04:36 PM   #140
Nailhead
Painting by numbers
 
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Joined: Apr 2003
Location: Glendo, WY- Pop. 230
Oddometer: 5,732
[QUOTE=TooFast;20262577]
Quote:
Originally Posted by Nailhead View Post
That may well be, but it still doesn't make an abundance of sense to me given that axle shafts aren't made of bearing steel.


Not that I like it, look how many bike/car/truck motors spin their overhead cams directly on their aluminum heads - no bearings other than an oil film...

always wondered about dry starts after oil changes, running low on oil, etc
A pressurized oil film, remember-- those cams aren't (shouldn't be) actually touching the metal of the bearing itself.

That axle shaft is subject to an unpressurized "catch-as-catch-can" splash oiling system in contrast.

Not a big confidence builder given what'll happen if that bearing fails.
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