Tim D. Posted September 20, 2019 Report Share Posted September 20, 2019 Ok. So I have a nut i need to torque to 200ftlbs. My wrench only goes to 100. I weigh close to 200 lbs. If I set my breaker bar connected to the nut parallel to the ground and balance on it at 1 ft from the nut and it doesn't move does that equate to 200 ftlbs? Tim Quote Link to post Share on other sites
Waldi Posted September 20, 2019 Report Share Posted September 20, 2019 Yes Tim, or it is more... but if you tighten this way it would be ok, but not as accurate as a torque wrench. I will not go overboard about speed of torquing and accuracy effects, for most of our TR applications this method suffices. Do not use the torque wrench for this though. Waldi Quote Link to post Share on other sites
ed_h Posted September 20, 2019 Report Share Posted September 20, 2019 You can also get or make torque multipliers for torque wrenches. They are just extensions. Doubling the length doubles the torque for the same force at the handle end. Ed Quote Link to post Share on other sites
Motorsport Mickey Posted September 20, 2019 Report Share Posted September 20, 2019 Tim, If you follow that method you will overeach that 200lb setting... I’ve seen you Lol. Mick Richards Quote Link to post Share on other sites
JochemsTR Posted September 20, 2019 Report Share Posted September 20, 2019 Just out of curiosity, I believe I had almost every nut and bolt in my hand....which nut requires 200 ftlbs? Jochem Quote Link to post Share on other sites
Waldi Posted September 20, 2019 Report Share Posted September 20, 2019 Good observation Jochem! Maybe on a petrol head? Cheers, Waldi Quote Link to post Share on other sites
Z320 Posted September 20, 2019 Report Share Posted September 20, 2019 (edited) Rear axle units? "Frank" owns Goodparts units and they had to be tighten with 300 Nm. Edited September 20, 2019 by Z320 Quote Link to post Share on other sites
Z320 Posted September 20, 2019 Report Share Posted September 20, 2019 Back home the manual tells 200 Nm Quote Link to post Share on other sites
Tim D. Posted September 20, 2019 Author Report Share Posted September 20, 2019 Cv axles nuts. Cheers Tim Quote Link to post Share on other sites
JochemsTR Posted September 21, 2019 Report Share Posted September 21, 2019 (edited) 7 hours ago, Tim D. said: Cv axles nuts. Yes, thats what I thought. In that case I would rather apply an exact and controlled torque and not experimenting with geometry and physics. Maybe a shop in your area has such a torque wrench? Jochem Edited September 21, 2019 by JochemsTR Quote Link to post Share on other sites
harrytr5 Posted September 21, 2019 Report Share Posted September 21, 2019 Halfords £90 Regards Harry TR5 Nutter Quote Link to post Share on other sites
Waldi Posted September 21, 2019 Report Share Posted September 21, 2019 200 Nm is not that much. My 1/2” Gedore does that, it was around 100 euro in an offer. Waldi Quote Link to post Share on other sites
Motorsport Mickey Posted September 21, 2019 Report Share Posted September 21, 2019 32 minutes ago, harrytr5 said: Halfords £90 Regards Harry TR5 Nutter ^ +1 that's where I got mine. And if the CV driveshaft nuts are CDD units from memory they are 240 lb ft. Mick Richards Quote Link to post Share on other sites
Tim D. Posted September 21, 2019 Author Report Share Posted September 21, 2019 Fair enough. Just wondered whether my definition of torque was correct. I'll sort a more analytical method. Quote Link to post Share on other sites
John Morrison Posted September 21, 2019 Report Share Posted September 21, 2019 Your local friendly commercial vehicle garage, they have massive torque wrenches, maybe for a pint, if it's just a final tightening you need? John Quote Link to post Share on other sites
JochemsTR Posted September 21, 2019 Report Share Posted September 21, 2019 13 hours ago, Tim D. said: If I set my breaker bar connected to the nut parallel to the ground and balance on it at 1 ft from the nut and it doesn't move does that equate to 200 ftlbs? 45 minutes ago, Tim D. said: Just wondered whether my definition of torque was correct. Yes, your definition is correct. Jochem Quote Link to post Share on other sites
Z320 Posted September 21, 2019 Report Share Posted September 21, 2019 That brings an old joke back in my mind: How to torque 300 Nm with only a 200 Nm wrench? First torque the nut with 100 Nm, next an hour later with 200 Nm, so you get 300 Nm. Or how to make a 20 mm drill with only a 13 mm drilling machine? Any idea? Quote Link to post Share on other sites
Motorsport Mickey Posted September 21, 2019 Report Share Posted September 21, 2019 Or how to make a 20 mm drill with only a 13 mm drilling machine? More seriously you can make a drill bit make a hole seriously over the overall dia of the drill bit, by grinding the drill lands ( the cutting edge ) VERY one sided. The drill will cut in an eccentric motion but still produce a hole many times the drill outside dimension. Mick Richards Quote Link to post Share on other sites
Tim D. Posted September 21, 2019 Author Report Share Posted September 21, 2019 Got the local garage to tighten em up. Tim Quote Link to post Share on other sites
Z320 Posted September 21, 2019 Report Share Posted September 21, 2019 9 hours ago, Motorsport Mickey said: Or how to make a 20 mm drill with only a 13 mm drilling machine? More seriously you can make a drill bit make a hole seriously over the overall dia of the drill bit, by grinding the drill lands ( the cutting edge ) VERY one sided. The drill will cut in an eccentric motion but still produce a hole many times the drill outside dimension. Mick Richards Mick, you beat me with that! Great! Marco Quote Link to post Share on other sites
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