JohnD Posted September 8, 2023 Report Share Posted September 8, 2023 Tipidave, Yes, you could do that and have a look-up table so that you could guess what the wrench was clicking at, OR you could get it recalibrated. Look online for someone near you, who can offer the work to ISO 6789. ( ISO 6789.2017 is a later, more expensive standard!). However it'll cost about £50, so a new wrench might be a better option. John Link to comment Share on other sites More sharing options...
Colin Lindsay Posted September 10, 2023 Report Share Posted September 10, 2023 1 Link to comment Share on other sites More sharing options...
DVD3500 Posted September 11, 2023 Report Share Posted September 11, 2023 Missing a 4th: Bolt sheers=too much torque Link to comment Share on other sites More sharing options...
JohnD Posted September 11, 2023 Report Share Posted September 11, 2023 Actually, that joke is about right! "Hand tight", using only the muscles in your forearm, is 10-12 ft-lbs. (NB sump flange bolts!) Your upper arm muscles, biceps, triceps, can exert about twice that, and using the shoulder muscles that are even larger and connect to your spine, about four times. After that, it's multiplying their power by a longer lever. For instance, Triumph rear wheel bearing but 120ft-lbs (from memory, don't quote me!) or Ford Grenada stub axle nuts, 350ft-lbs! John Link to comment Share on other sites More sharing options...
Pete Lewis Posted September 11, 2023 Report Share Posted September 11, 2023 remember most production torque figures were introduced to get non skilled operators to achieve with tooling a consistent and safe assembly on a production environment donald duck and king kong have very diferent ideas of hand tight on production it gave a repeatable operation some quality , Pete Link to comment Share on other sites More sharing options...
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