Hub nut

bigp

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Sorry to be a pain chaps, but could someone tell me what size the hubnut is on a W202 front hub??

Should the hub just slide off the splines with a bit of persuasion??

Cheers.
 

television

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You just undo the clamp and and the wheel bearing nut undoes with ease and the hub pulls off
 

wireman

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Your fingers should be sufficient to turn the nut. The hub contains a pair of taper roller bearings, once the nut is removed and the washer behind it the hub will just slide off.

Keep it all very clean, grit will do no end of harm especialy between the nut/washer and bearing face where it will allow the hub adjustment to vary. Ensure that there is no muck on the seal surface and its journal before you reassemble.

On reassembly the hub should be adjusted to give an almost negligible end float of 0.001 to 0.002mm, thats about one tenth of a human hair. I have been told that if you can just about rotate the washer it will be as near as makes no odds, if you can't it is too tight.

Nip up the clamp screw to take all the slack out of the threads before you make the final setting, clamp it just so much that you can only just turn the nut with your fingers.
Once you are happy with the adjustment tighten the clamp and check again for end float.

Its either 22 or 24mm, but you should not need a spanner. The allen key for the pinch bolt/clamp screw is 5mm.
 
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bigp

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Thank you very much for the detailed answers guys.

Much appreciated.
 


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