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Old 10-10-2009, 06:18 PM   #1 (permalink)
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Question Whats the torque setting's on brake lines?

I don't see it on the supension facts? I have the rear calipers bolts torqued to 25nm or 15 foot pounds. Oh,whats the torque for the speed bleeders too?front pin 35nm,rear pin 22nm,banjo line 24nm, bleeders 15nm as usual a lot of info is wrong on this site,being off 5 pounds of torque is unexceptable when dealing with brake parts.

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Old 10-11-2009, 07:36 AM   #2 (permalink)
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being 5lb/ft off on most fasteners isn't a big deal. If you look at most japanese and germain cars they give a range at which the fastener can be torqued to. There isn't one specific point where the bolt will come loose, then 10 ft/lb later it breaks off. Once you work on cars a while you come to realize that every mechanic does stuff by hand without a torque wrench all of the time on non-critical bolts. With experience you know where something should be to be secure and you can just crank it to that either by hand or with air tools.


Torque the speed bleeders to the same you'd do regular bleeder screws, 11 ft/lb.




Oh, and did you know that if you don't have a very good in/lb torque wrench then your ft/lb one won't be near accurate at low values.





And one last thing. I said I rounded to the nearest 5. That means it's off 2 or 3 ft/lb at most. Most torque wrenches aren't going to be spot on so the 2-3 ft/lb difference again makes no difference to the actual end result.
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Old 10-11-2009, 09:43 AM   #3 (permalink)
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Well,the torque setting to use should be the exact one's recommended by dodge. i would use the nm torque setting because it more accurate. You are going to be off unless the torque wrench is in top shape,so setting it the exact setting is important especially with brake parts-thats what i am working on, a banjo brake nut-if that isn't important i don't know what is and on brakes the caliper pins have to be set perfect or look on the threads and you will see a brake failure due to not setting the torque right-could have been the last thing He did wrong. I am working on a brake line that I stripped the threads on and are trying to fix that now. Went to the parts store they gave me total junk-a single compression tool when I should be using a double compression tool which fixs the line twice as strong,stupid of me asking a parts guy anything as usual I get extreme bad info-but that wasn't here. I would say being off a few nm on the caliper pins would be ok only if it was a bit tighter not looser! 160MPH with No Brakes LOL! Is 11 foot pounds the same as 15nm-I don't think so,it's 14.9nm. Why bother using a torque wrench without using the exact setting what ever the part is your working on-i suppose i have a higher standard than 99.999999% of people working on cars because i was taught to make anything better than it came 100% is not good enogh-it has to be 150% better i call that mechanical art and you only see that on race cars!

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Old 10-11-2009, 10:32 AM   #4 (permalink)
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I've worked with guys who actually RACE their cars (wheel to wheel) and they don't take a torque wrench to every bolt, including the brake parts. Again, PLEASE look up tq settings for almost anything else, including brake parts for other makes. There is not one single number but instead a range. The number stated is usually in the middle of that range because they know tq wrenches may be a little off. Only on tolerance critical parts would I go with the exact spec every single time. That means engines and setting up differentials mainly, but there are a few others in and around the car. Also, you can not get a torque wrench to every bolt on the car. If you're just pulling the caliper off you may only be able to get an open end wrench in there and in that case you just have to know how tight is good enough without worrying about stripping the threads.



btw, nm is not more accurate. it's just another unit of measure. You do the conversion and you see it's the same. Is 1 yard more accurate than 36 inches? what about 1.25yd and 45 inches? They are telling you the exact same thing just in a different way. check Newton Meters to Foot-Pounds Conversion Calculator to see for yourself. if you're worrying about 0.06 ft/lb difference and actually have tools to see that difference, then you're working on something way more important than your brakes, or any earth-bound vehicle.

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