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Any way to "guess" torque without a torque wrench?
Stock Problems/IssuesDiscussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Cooper (R50), Cabrio (R52), and Cooper S (R53) MINIs.
Any way to "guess" torque without a torque wrench?
I want to do my crank pulley, because I have to change the crank seal, so why not get a new pulley, right? My only concern is torquing the thing back down to 85 ft/lbs. My current torque wrench only goes up to 75. Is there any way to sort of "guess" where 85 ftlbs is, once I've torqued it up to 75? Like say 75+ an extra turn?
I wouldn't say buy a new one....but... borrow one? Torque specs are something you don't want to guess on. Especially on an important part of your engine. Trust me.... you don't want to lose your crank pulley!
Torque is force times lever arm, so if you had a good-sized breaker bar, a coffee can, a piece of rope or wire, and a large quantity of pennies, you could get as close to 85 lbs-ft of torque as most (uncalibrated) torque wrenches. ;-)
Torque is force times lever arm, so if you had a good-sized breaker bar, a coffee can, a piece of rope or wire, and a large quantity of pennies, you could get as close to 85 lbs-ft of torque as most (uncalibrated) torque wrenches. ;-)
Please do as suggested a buy a torque wrench with a higher setting. It'll pay off in the end because if you are doing a crank pulley, you obviously will be doing something else in the future that will use it. It's a great investment. If you don't, then at the least do like the Capt. Suggests and use Advance Auto Parts loan a tool. You'll get your money back provided you don't break the tool. Torque settings are very important, but more so on some than others. I wouldn't guess on somehing like a crank pulley unless my life depended on it.
...My current torque wrench only goes up to 75. Is there any way to sort of "guess" where 85 ftlbs is, once I've torqued it up to 75? Like say 75+ an extra turn?
...
Definitely not one extra turn. That would be way too much!
where 85 ftlbs is, once I've torqued it up to 75? Like say 75+ an extra turn?
You already have your answer, but think about what you just said above.
An extra turn (360 degrees to be exact) wouldnt that be way more than the extra 10 ft Lbs after the 75?
Now I'm just guessing at that figure and so are you..So I Wouldn't.
You'd be surprised on what a click type wrench set a 75 is actually pulling. It takes a alot of finesse to get 75 out of one. I calibrate torque wrenches all day long. If your talking about a click type with a twist handle they have a spring that is compressed , at the top of the scale there is some spring left but it will go coil bound if you went too much over scale.
You already have your answer, but think about what you just said above.
An extra turn (360 degrees to be exact) wouldnt that be way more than the extra 10 ft Lbs after the 75?
Now I'm just guessing at that figure and so are you..So I Wouldn't.
That completely depends on the threading of the bolt/screw.
To the OP, get a foot long wrench and something weighing 85lbs. That's as good a guess as any.
You'd be surprised on what a click type wrench set a 75 is actually pulling. It takes a alot of finesse to get 75 out of one. I calibrate torque wrenches all day long. If your talking about a click type with a twist handle they have a spring that is compressed , at the top of the scale there is some spring left but it will go coil bound if you went too much over scale.
Where can I get my torque wrench calibrated for less than the cost of a new one?