 rear bearing replacement - week 3, getting a broken bearing out of the trailing arm |
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| PRS914-6 |
 Dec 7 2006, 08:50 PM
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#21
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Excellence Magazine Project 914 3.6  Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None   |
I would not use the brute force method. BFH is not the answer here. From your post, it seems you only have the outer race remaining and nothing to beat on. The cure is simple, I've done it many times with wheel bearing races.
Get a welder from someone. A small MIG is best but an arce welder (buzz box) works fine too. Make several seperate full circle passes with the welder in the inside on the race. Let it cool. It will shrink and you will probably be able to push out by hand or with a gentle tap on the welds. This method has never failed!. I also remove my front wheel bearing races like this to avoid beating on them. You can usually make one pass on them, aim the hub down and the race will fall out! Have fun |
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| bd1308 |
Dec 7 2006, 11:09 PM
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#22
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
wouldnt a nice hot propane torch do the same thing?
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| PRS914-6 |
Dec 7 2006, 11:23 PM
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#23
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None |
QUOTE(bd1308 @ Dec 7 2006, 09:09 PM)  wouldnt a nice hot propane torch do the same thing? Nope.....Why this works is this......When you weld something the new metal shrinks when it cools. When you weld a circle in the race, the entire race will shrink when it cools. If you just use heat, it expands and when it cools, it's the same size. Welding the inside circle is the key. |
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| bd1308 |
Dec 8 2006, 12:34 AM
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#24
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Sir Post-a-lot Group: Members Posts: 8,020 Joined: 24-January 05 From: Louisville,KY Member No.: 3,501 |
true, thats why you gotta watch panels for shrinkage when they cool and cause warping.
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| FB914 |
Dec 8 2006, 07:14 AM
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#25
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74 alaska blue 2.0 Group: Members Posts: 63 Joined: 1-March 05 From: Philly Member No.: 3,689 |
Looks like I'll be learning to weld
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