removing stuck flare or tubing nuts



removing stuck flare or tubing nuts

Postby grumpyvette » October 6th, 2010, 9:22 am

IF youve ever rounded off a flare nut,Image

on a master cylinder, brake caliper,transmission or radiator and you want to prevent it from happening again, theres a simple procedure for getting them loose that works about 90% of the time

IN THE FUTURE WHEN DEALING WITH FLARE NUTS, IF THEY ARE NOT EASILY TURNED, STOP AND FOLLOW THIS PROCEDURE

(1) spray with (this stuff penetrates very quickly and tends to free up stuck threads )
Image
http://www.freealloil.com/

(2) heat briefly with propane torch, being careful not to damage anything, (this expands the metal)placing a bit of water droplets about an inch or two out on the metal tubing and watching for it to evaporate gives you a guide on heat levels, and a stop heating point.
Image


(3) spray with

Image
(this stuff penetrates very quickly on the hot threads and tends to free up stuck threads and cool the nut and surrounding area contracting and breaking loose the metal surface contacts )

http://www.freealloil.com/

(4) wait 5 minutes MINIMUM and RE-SPRAY with
http://www.freealloil.com/

(5)spray for a minimum of 5-6 seconds with
http://www.loctitefreezeandrelease.com/
Image
http://www.amazon.com/Loctite-Freeze-Re ... B001VXU474
this RAPIDLY contracts the flare nut and it tends to turn easily now that its got lubricant on the threads and its cooled/frozen enough to contract to a smaller diameter, breaking the thread contact grip surface.

and immediately


(6) USE THE CORRECT WRENCH, a tubing or flare nut wrench has far more grip and contact area than a standard open end wrench so its less likely to round off the hex edges


http://www.csnstores.com/asp/show_detai ... ku=IHI1184


Image

before RE-INSTALLING COAT THE THREADS WITH ANTI-SEIZE PASTE, as it tends to prevent future problems
Image


BTW should you need to replace a rounded off flare nut,
youll need a flare tool (they come in 37 and 45 degree styles so look carefully)
http://www.summitracing.com/parts/OTC-6503/
Image


a tubing cutter
http://www.summitracing.com/parts/SUM-900500/
Image



and a new flare nut, of the correct type and size

Image

http://www.summitracing.com/parts/SUM-220215/?rtype=10


read this thread
viewtopic.php?f=55&t=1030&p=1973&hilit=+flare#p1973
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

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