Torque wrench calibration
Discussion
A moot point, which I'd like a mechanical engineer to comment on regarding engines. Years ago I acquired a tasty torque wrench. Absolutely massive( almost a metre long) but the bottom end made it great for all car use. One day in my day job,i was fitting a telephone system to a local car parts supplier. HEAVEN- a petrol head working in a car parts place. I was on a coffee break when I spotted a similar one in their range and asked the parts manager about them. Apparently in early days this firm had bought in some stock, and couldn't calibrate / guarantee calibration so that Trading Standards could have hit them hard. So dump them they had to ,till they acquired a calibration kit. Me- I think like they did. Torque wrench- i only use it on cylinder heads, where I want all bolts to be equal . I know the theory- I was trained as an electronics & Comms engineer, where 12v means 12, not 11.9999 or 12.1. Then I found better paid work as a Rail Signal engineer and in spare moments I did the calibration run. There were torque wrenches / meters eyc etc. But I never saw a torque wrench come back with any adjustment ,and this kit was to ISO 9000 ETC. So i'd suggest that when a bolt is given a torque rating , it's limits are within limits. In the old days we built strobes to check timing. Components were normally within 5% or 10%, these days possibly 2%. But replace a resistor in your meter and it was very low percentage tolerances. I'd suggest that this car parts supplier could calibrate, but it's a long haul from up Narth.
Gassing Station | North East | Top of Page | What's New | My Stuff