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Water pump bolts 900 1997

posted by  Dave Stevens on  Mon May 9 23:57 CST 2022
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last visit: Sun Jan 1 02:36 CST 2012
[RELATED]

The Volvo torque spec for the water pump fasteners is a nominal 20 nm, approx 15 ft-lbs, which is by no means excessive or anywhere near the yield point. Any bolt that snaps at 16 ft-lbs was likely badly fatigued from previous over-torquing or your torque wrench was incorrectly set or badly out of adjustment. New nuts and a bolt are often supplied with new water pumps, which does suggest these fasteners can be a problem area, but I've never hesitated to re-use the original Volvo hardware, especially as I know who the preceding mechanic was (either me or the factory).
--
Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now






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