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how to ensure torque on a nut

4getr34

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Jun 13, 2011
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NY
Wrench n00b here, I need to replace my calipers and will require detaching/reattaching the brake hose. factory recommends ~13ft lb of torque on this nut. what tool would i need to ensure this setting? any tips appreciated.
 
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wafrederick

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I do it by feel too and there is another thing I do.I don't use the new washers with the new calipers,they don't seal and leak getting thrown in the garbage can.I reuse the old washers and no leaks.
 

Moose-LandTran

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I don't use the new washers with the new calipers,they don't seal and leak getting thrown in the garbage can.I reuse the old washers and no leaks.

Wow..

Talk about *** backwards. I always replace copper or aluminium washers, never had a new one leak. Once tried to reuse copper washers on a Mercedes-Benz fuel filter assembly and it pissed fuel like there was no tomorrow. And that's at a much lower pressure than a braking system. New set of 5 copper washers and it was fine.

DSC00371.jpg


I'm glad you don't work on cars within a 3,500-mile radius of me..
 

Freeborn John

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I've annealed old copper washers and used them again if I've really been in a corner, never on brakes though. It worked OK, but it's a bodge.
 

wafrederick

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I did reuse the copper washers on a 2001 Ford Explorer Sport trac,never leaked at all.Had to replace the right front brake caliper during a front brake job on this vehicle yesterday because the slides on the caliper bracket were froze up badly.A replacement caliper bracket does not come with new slides from the auto parts stores.The new washers don't seal very well at all.
 

stopdroplol

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I've never replaced the banjo washers on my brakes and I've never had a problem. I keep track and put them on the same side they come off though.
 

peter_x

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Hicksville, NY
If you use a torque wrench with a flare nut wrench, the angle between the wrenches will matter. They have to be perpendicular so the nut gets tightened to the same torque as indicated on the torque wrench.
 

treasureseeker

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Michigan
I have heard guys say to use the old washers, not the new ones.
I usually use the new ones, don't think I ever had a problem.
But I bet I am tightening more that ~13ft lb of torque.
Thanks,
Tony

The first mom and pop garage I worked at had a lot of rules like that. I think reusing the copper washers came from problems with the cheap ones that came with aftermarket calipers. I have had some loose fitting copper washers that didn’t center in the relief and were held from seating properly but just needed a correction.

They also never changed inside the carburetor fuel filters with a tune up siting, past problems. I was young and didn’t know any better. I have reused copper washers without any problem. I just tighten them a little more than new ones.
 
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4getr34

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Jun 13, 2011
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NY
Torque wrench and flare nut crowfoot wrench.

Truth be told, you can do it by feel. If you're capable of replacing calipers correctly you should be ok tightening brake lines. :)

yeap thats right, i looked up some sites explaining the physics. hairy stuff!
 

nate379

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:lol_hitti

I have reused the old ones when I didn't have new ones, sometimes ok, sometimes they leak, but if I have new ones I replace.

When I worked in a shop we would get in deep **** for not replacing them, even on oil pans.

I do it by feel too and there is another thing I do.I don't use the new washers with the new calipers,they don't seal and leak getting thrown in the garbage can.I reuse the old washers and no leaks.
 

GoBlue

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Under a car...swearing
Around me...most all of the shops refuse the new washers and use the old ones...its how i was taught...I have never had an old one leak but have had plenty of new ones leak when old ones couldnt be reused for whatever reason. As for my employees...i hire quality techs and tell each of them that the job is theirs and attached to their name. Do what they feel is best and deal with the consequences good or bad. I have not been let down often. A lot of good techs with a lot of experience have their own ways of doing things...as long as the job is done well and the customer is happy...im happy. Obvious problems are another story...but pros dont make obvious mistakes often.
 

Stick

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I do it by feel too and there is another thing I do.I don't use the new washers with the new calipers,they don't seal and leak getting thrown in the garbage can.I reuse the old washers and no leaks.

Wow.

Just when I thought my opinion of you couldn't get any lower, you post **** like that.

New washers, torqued to spec (with a torque wrench, not by feel), and I haven't had a leak in over 10 years. I have re-annealed them on occasion, but along with re-using copper washers, it's not a habit I like to get into.
 

ajchien

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Los Angeles, stuck on the 60 freeway.
Ok, Im a shadetree that needs to be schooled on this....

Does 13 ft lbs seems awfully loose to make sure a copper washer is sealing. Should it be higher like 25-35 ft lbs? I'm just extrapolating limited experience with oil drain bolt washers. Doesn't it take about 25-35 ft lbs to make a indentation into the washer to seal tightly?
 

Skin

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Feb 24, 2010
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Boston
Ok, Im a shadetree that needs to be schooled on this....

Does 13 ft lbs seems awfully loose to make sure a copper washer is sealing.

no, and personally i use an in-lb torque wrench for that set to 160.
 

GoodoleBoy

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Mar 2, 2008
Messages
252
Ive reused, bought new, even flattened out used washers, never had a leak..I usually flatten out the used ones if they been reapplied more than once..But I prefer to buy new if I am at a parts store and remember to get some..If your working on a weekend or only have one car, reusing is about the only option if you dont have new ones already.
 
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