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Old 05-05-2020, 11:48 PM
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andrewwynn andrewwynn is offline
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Location: Racine, WI
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Control Arm Ball Joint Replacement

Freeze old to remove could help also.

Steel changes size 1% per 100°F approximately so heat the outer part to 250F or so and cool the inner part to -15°F (use R134a aka canned duster).

I've measured 0.003" (0.08mm) difference in my front bearings.

Don't make the goof of freezing rear bearings on X5: oops they are bolt on but press over the hub: cold makes them tighter.

I made a kit from an R134a can valve and a shop air duster to apply cold to things. Originally so I could freeze a water pipe to change a valve downstream. I've done that a couple times.

I've used dry ice to cool a hub to remove from my front bearing but now I just needed up my bearing press to 31T capability no longer need to use heat and cold.
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)

Last edited by andrewwynn; 05-05-2020 at 11:55 PM.
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