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Brakes Pulsing, Again. At a Loss 900 1993

posted by  spook on  Sun Nov 7 00:20 CST 2004
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last visit: Fri Oct 24 08:06 CST 2014
[RELATED]

Dear hip82,

May this find you well. The proper torque for lugnuts is 63 pound feet (85 nM). My source for this is the Volvo pocket data booklet - Cars 700,850,900 (1991-1996), p. 126.

You seem to be over-tightening the lugnuts (i.e., tightening them to 65-80 pound feet). This can lead to warped rotors, especially if the torque is not evenly applied.

Try torquing the lugnuts in stages. start at 40 pound feet, then go to 50 pound feet, then to 63 pound feet.

Further, do so, as suggested in other posts, by tightening the nuts in opposing "pairs" (after tightening a nut to the first stage of tightness, go to the nut most nearly opposite it, and tighten that one to the first stage of tightness), etc.

Hope this helps.

Yours faithfully,

spook






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