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Awesome! Always have to look thru pages of tables to find a. Specific torque.View attachment 813079I posted this in another thread to answer a question if there are specific values that bolts are supposed to torqued too. The answer is yes, because what you are really doing from an engineering/physics standpoint is stretching the thread a predetermined amount. Not so important on various brackets and cab bolts, but all important when you're talking about engines, injector pumps, transmissions, seal housings, bearing housings, and suspension pieces. This chart has been taped to the inside of my toolbox lid for over 35 years. I hope my fellow soldiers will find it helpful. That's the spirit it was posted with.
Your a weslth of knowledge! Thank youTorque means more about horsepower than horsepower does.
Thank you Will! Just glanced over them and the top of my head exploded! I'm going to have to look at it again when I've had more rest. The metric stuff just gives me brain freeze every time.Both of those are awesome, Here is a PDF of the stuff I copied out of a manual and took to a friends house that the original Dirt Bag crew works on out junk of.
Great info sir! When i need the info wich is not often i can never find the conversion tables to save my fanny! Ty againBoth of those are awesome, Here is a PDF of the stuff I copied out of a manual and took to a friends house that the original Dirt Bag crew works on out junk of.
Dipstick,View attachment 813079I posted this in another thread to answer a question if there are specific values that bolts are supposed to torqued too. The answer is yes, because what you are really doing from an engineering/physics standpoint is stretching the thread a predetermined amount. Not so important on various brackets and cab bolts, but all important when you're talking about engines, injector pumps, transmissions, seal housings, bearing housings, and suspension pieces. This chart has been taped to the inside of my toolbox lid for over 35 years. I hope my fellow soldiers will find it helpful. That's the spirit it was posted with.
Pretty amazing Will...Print them, can't tell you how many times these have helped out. Beware though, SOME manufacturers have separate, other than these standard torques. Something that comes to mind is New Flyer busses. They USED to ship us busses with the axles removed. We....Cummins....would torque them to the "general" torque specs in our manuals. Well, turns out they weren't adequate. A component failed after a repair, they, the bus mfgr and the transit outlet, went after Cummins for the failed parts/pieces. We told them we always returned their vehicles with the part torqued to the generic spec. Turns out, the BUS OWNER was at fault because the mfgr stated that the fasteners removed were a 1 time use only. Just a word of caution
Yup. I can see some frame bolts and such being put on with an impact wrench. Many times professional truck mechanics are under a lot of pressure to get it done. I worry most about under torquing fasteners and having something come loose while operational and I hate the idea of stripping out threads in say a cylinder head due to over-tightening. That's when I pay really close attention to torque. I don't think I've ever used one and done bolts. I'm glad I started this thread. I greatly appreciate all of the knowledge and information that each of you shared with me and the others.
Now that's a scary thought! I'll have to ask my brothers about that. They're both mechanical engineers and design turbine engine parts. One works for Pratt & Whitney and the other for General Electric.I worked on turbine gen sets. Cost of engine, $255,000. EVERY bolt, nut and screw was supposed to be torqued IAW the TM.
I once saw a gen set destroy the engine, because someone under torqued, (Its close enough for government work!) a drive assembly, for the regenerator wheels. Cost of repair? $255,000.
Thanks Frank! I especially want to read screw thread design!some more...
The good thing about the D424A, 150 KW gen set was that the engine casing was cast iron. All the little widgets stayed inside. We had a 30 KW that had two yellow lines painted on it. Wasn't healthy to stand between the yellow lines.Now that's a scary thought! I'll have to ask my brothers about that. They're both mechanical engineers and design turbine engine parts. One works for Pratt & Whitney and the other for General Electric.