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Thread: Rear wheel bearing replacement
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Brad
Rotorhead
Posts: 1672
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posted December 13, 2010 12:21 PM |
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Rear wheel bearing replacement
There is a threaded nut that holds the rear wheel bearings on. FSM says to use a MAZDA spanner tool part # 49 0603 621A to unthread it but I can't find that tool for sale anywhere.
What have you used unthread the rear wheel bearing nut? A brass drift and hammer would do it but I prefer not to go that route if possible.
Anyone ever make a tool out of flat steel bar and some bolts grinded to proper shape?
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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repumax
Redlining
Posts: 427
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posted December 14, 2010 01:28 PM |
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Hey Brad,
The nuts are just a retainer nut. The bearings are pressed on the axle so a shop would have to remove and replace them.
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1974 Mazda Repu
1986 Yamaha RZ 500
1988 Yamaha YSR 50
1991 Suzuki RGV 250
1992 Yamaha TZR 250 SP
1996 Aprilia RS 250
2003 Ford F-450 6.0 Diesel
2004 Mazda RX8
2006 Yamaha Banshee
2014 18' Eclipse Toy Hauler
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Brad
Rotorhead
Posts: 1672
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posted December 15, 2010 02:15 PM |
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Brad
Rotorhead
Posts: 1672
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posted February 16, 2011 12:05 PM |
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I completed the task. Each axle took two hours not including taking it to a shop to have the bearing pressed on for $15 each. I tried holding the axle in a vise but it just rotated while trying to loosen the nut. So I forked out the dough for the factory axle holder, and the factory tool to remove the nut. Also bought a heavy duty puller to remove the bearing (not pictured). Lots of cleaning before oiling the bearing, blue loctite gel on the threads then crank the nut on.
Rear axle bearing, retaining nut and lock tab
New Timken Bearing pressed on and oiled. I'd use grease next time instead as the oil drips out when installing into the axle tube.
Tools of the trade:
Axle holder in the vise:
Axle bolted to holder via lug nuts:
I'd be willing to do this for other people too since I now have the tools and technique down. Just contact me directly.
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-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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Hunter
Hauling
Posts: 178
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posted February 16, 2011 02:22 PM |
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Brad,
Thanks for the post. Price of the tools ? from the dealer ?
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Brad
Rotorhead
Posts: 1672
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posted February 18, 2011 10:27 AM |
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Hi Bruce. The axle holder and wrench were $208 shipped. Bought them from Mazda's SST division which is part of Snap-On.
Not including the heavy duty puller for $85 to get the bearing holder and bearing off...
I already had the 3/4" breaker bar and 5' pipe for the wrench.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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Hunter
Hauling
Posts: 178
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posted February 19, 2011 04:38 AM |
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Thanks for posting the pics. Never had to do the job thank goodness.
Think I will try and round up the following:
U Joint press: 49 0259 460A
Coil spring holders: 49 0223 641 and 640A
Spanner for axle shaft lock nut: 49 0603 622A
Companion flange holding tool: 49 0259 710A
The fixture that holds the axle (you provided a pic) is not shown in the manual, not even mentioned ... unless it is the
Attachment for rear axle stand: 49 0164 562 B
Brad, as I am sure you already know the lame factory repair manual does not show the tool or job that you just performed. Of course it also leaves out the most difficult job ... the front A arm bushing replacement.
thanks again for the excellent post.
Bruce Toski
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