Lug nut torque

[Kenneth Foit]

Does anyone have the lug nut torque for a B2-HHMA131? It is a 1950 2-ton COE with dual wheels. The front tires are 8.25x20's and the rear duals are 9.00x20's.

Ken, Indy

[Bob_Koch]

Looked in the B-2 Shop manual and a Motor's repair manual. Couldn't find it in either one. I thought this would be easy.

[greg g]

Well if push comes to shove, and you can not find the factory spec, you can always revert to the spec for the fastener. I bleieve there is a max torque rating for every bolt and nut combo ever made.

Here is a calculator you can plug your fastener information into and get a value for different applications,

http://www.efunda.com/designstandards/screws/calc_bolt_torque.cfm#Answer

[Kenneth Foit]

Thanks for the calculator.

My air compressor and all my air tools were stolen. Unfortunately I have $500 deductible insurance and naturally the tools stolen were estimated at about $575. Sigh. My air impact wrench was a 3/4" drive 750 ft# model that is no longer available. I guess a 500 ft# model will be a substitute. Looks like I may have been hammering those old Budd lug nuts too tight.

As an aside, I have access to a 1" drive 1200 ft# inpact wrench. Is there a way to limit the torque on this tool? There is a 3 speed switch but I don't think that limits the torque.

Ken, Indy

[Merle Coggins]

Restricting the air flow to the tool will reduce it's effective torque. That's how most torque regulators work that are built into the impact gun.

Also, if you can't find the correct torque for you lug nuts, you can always use German Torque... Get them Geuttentiet

[Kenneth Foit]

Looks like it is the German method for me. That's a great one, Merle. I'll remember that. :0)

Ken, Indy

[Big50Dodge]

Does anyone have the lug nut torque for a B2-HHMA131? It is a 1950 2-ton COE with dual wheels. The front tires are 8.25x20's and the rear duals are 9.00x20's.

Ken, Indy

Hey Ken,

I have a similar truck ( B-2-FA) with the 20's and duals. I seem to recall reading somewhere that the lugs get torqued to about 230 ft lbs. This sticks in my mind because it was the same as the motor size. Darned if I can't find the reference to it now though. Should I run accross it again, I'll post the reference. Till then..... take it as you will.

I do know that if you take a 3/4 ratchet, add a 4 foot (+/-) length of pipe, and stand on the end of it, you can break free very rusted lugs bolts and bend the 3/4 ratchet while doing so. I recommend this for the outer lug only.

Keith