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800 ft./lb torque wrench
- Thread starter azcromntic
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Fell off the back of a truck did it?
I don't think you can test a torque wrench with a bathroom scale. The big thing about torque wrenches is consistency. So if you have a bunch of bolts, like on a ring gear, you want them the same torque. Most torque wrenches will at least keep consistant, even if they are not calibrated. I have found that some torque specs are up to user discretion, Especially when aluminum is involved. We're not building spaces shuttles, i'm sure your wrench is fine for what you're doing with it.
I would want more accurate torque reading for aluminum, much easier to strip.Exactly. I've got a "general" torque spec listing on my garage wall and it usually gives a broad range. Like a 3/8 bolt would be 30 ~ 45 foot pounds. I would use the lower number for aluminum. Now if you know your specific torque spec and have a manual, that's different. Like on valve covers and the like, it's more impprtant they are all the same rather than at exact torque.
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I'm planning on doing a roll on paint job myself with rustoleum. Got some patching to do first.
I bought a 800 ft./lb torque wrench off Craigslist and I want to do a quick test to see if it is even close to accurate. Anybody have something to test it? I could do it myself if I had an accurate floor scale: I'm not sure the one in my bathroom is that accurate
Anybody have an accurate floor scale I could borrow?
Guy that sold it said he found it. It was in it's case. CDI brand. $50 is what I paid.
Did I get a good deal? If nothing else I have a nice breaker bar.
The club members can borrow it if they need it. I wanted one to do the crankshaft bolt and possibly pinion nut. Yeah, I know, I could have just rented one. But for $50 I can have my own (hopefully it isn't trashed).
Most tool trucks have a calibration scale on them. I know that the Snap-on trucks in the Springs do.
If you have a pull scale and a bathroom scale and a fixed point, you can calculate if it is close. Put 100 pounds of pull on a 3 foot bar and you have 300 foot pounds of torque. So you can pull on your torque wrench with the pull scale and have the fixed point swivel on your vice with an arm pushing on your bathroom scale and you have a rube goldberg looking invention that is not accurate but would give you a faint idea if it was working. If the wrench is 24 inches long (2 foot) you would have to push down on it with 400 ponds to generate 800 ft lbs of torque or 9600 inch pounds of torque.
- Joined
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- Colorado Springs, CO
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- www.mntoyx4.com
I haven't actually started. Big benefits I see are low (low low low low) cost, and the ability to do a section at a time. You also don't need a paint booth.