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November 30, 2015, 05:54:32 pm

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Author Topic: Should I replace the wheel bearings?  (Read 2298 times)


  • Grand Gearhead
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Re: Should I replace the wheel bearings?
« Reply #15 on: June 10, 2013, 11:43:34 pm »
Oddly, the service manual don't give a torque value for the brake plate anchor nut or the large Hex Jam nut.

The large Castle nut that the cotter pin is supposed to be torqued to 70 N/M (52 ft/lbs).  That is a lot of torque.

The anchor nut that is ahead of the axle and holds the brake backing plate to the swing arm is a 12mm nut so a conservative torque value would be about 20-25 ft/lbs

The hex jam nut that goes between the castle nut and the swing arm could have a high torque if it was made of good steel but because it is a lock nut with reduced thickness I suggest keeping the torque to around 35-40 ft/lbs.

All of these values over 35 ft/lbs are probably tighter than a person using a open end wrench (spanner) would want to use so the two nuts on the axle should be tightened up "good and tight".
2011 G5 Deluxe
1999 Miata 10th Anniversary


  • Grand Gearhead
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Re: Should I replace the wheel bearings?
« Reply #16 on: June 11, 2013, 09:47:59 am »
The workshop manual says, "Retighten the castle nut fully such that the split pin hole is aligned.

Good thing they use a spacers on both sides and a cotter pin just in case. ;D
Oh Magoo you done it again