Question about 1992 GMC Sierra C3500

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Flare nut wrench size?

Trying to replace a metal brake line to the rear brakes and I don't know what size flare nut wrench to use.
I have SAE 9/16, 1/2, 7/16 and 3/8 wrenches. None of these fit my 1994 Pontiac Grand AM brake lines.

Thanks

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Try metric size. a flare wrench is an closed end wrench with a little **** in big enough to to slide over the line and then around the bolt its grabs mor of the bolt than a regular wrench

Posted on Dec 13, 2008

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How to replace a brake master cylinder


U need what is called a flare wrench I have rounded nuts before and the flare wrench took them off in most cases. The wrench can be found at most auto parts stores I find autozone to be the best

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Are all the flare nuts "double flare" onthe brake lines-must replace them all because of rust---- any bubble flares


sorry only double flared and fittings are allowed on brake lines, not only for security but also by law, a flaring tool is not that expensive and neither are brake lines, what costs the most is the labor time to make and install lines

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How do you change the rear brake line that goes between each wheel, the brake line that is metal..


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Where can i find a manual on how to replace the brake line on a 02 chevy s10 xtreme?


I'm not aware of a particular Manual that specifically addresses Brake Line for your Specific Vehicle.
However I have replaced several "complete" and "partial" Brake Lines in my years of experience.
Specific/Pre-Contured Brake Lines for your Truck are available at most auto parts stores. Calt them for availability and prices.
However these are somewhat expensive. YOU CAN 'MAKE' YOUR OWN LINES!
Also available at these auto parts stores are two (2) tools you can buy.
1) A Brake Line Bending/Shaping Tool.
2) A Brake Line Cutting/Flaring Tool.
These tools are very easy (and fun) to use.
The auto parts stores carry "Straight" "Bulk" Brake Lines in different sizes (lenght and diameter). They also carry Brake Line "male" and "female" Brake Line Connectors. Make sure you purchase the correct diameter size Brake Line and the correct Connectors to fit these Brake Lines.
If the original Brake Line that you are replacing has viable (usable) sections and/or connectors you can use, then use them.
Take the old Brake Line off using a flare wrench.
Check your Brake Line Connectors to see if they will properly connect to your remain system.
Measure this piece with a material measuring tape (don't tell momma!). Measure the straight Brake Line and using the Brake Line Cutting Tool, cut the straight bulk Brake Line. Using the old Brake Line as a reference: use the Brake Line Bending Tool to shape the straight bulk Brake Line into the desired shape, matching as close as possible to the original Brake Line.
BEFORE USING THE BRAKE LINE FLARING TOOL:
Place the proper "male" or "female" connectors onto the line, FACING the proper directions.
Using the Brake Line Flaring Tool: Flare the ends of the Brake Line.
Connect the "new" Brake Line using the flare wrench.
Make sure you Bleed the entire Brake System.
Let me know if this helped, or if you have any additional information or questions. Feel free to contact me at FixYa.com!
ps: Make sure you clean, roll-up and put away that material measuring tape!!

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Have you removed the Brake Line? If not: this must be removed in order to remove the cylinder. Use a flare-nut wrench. If you have removed the Brake Lines and Bolts, tap lightly with rubber mallet to loosen.

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How to change a wheel cylender on the rear driversid e


raise rear of vechicle support it on jack stands.block front wheels.remove wheel -brake drum-then brake shoes.use flare nut wrench to remove brake line from wheel cylinder.then remove wheel cylinder mounting bolts .then remove wheel cylinder.put new wheel cylinder in .do every thing visa versa bleed brakes when done.

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I need advice on installation of proportioning valves in 04 santa


this is simpler than i thought.you just remove the plastic air filter housing,in order to have room to work.to remove,loosen the hoses going in and outof the filter housing.next,open and remove the top of the housing,then remove the air filter.at the bottom of the bottom half of the filter housing are 3 bolts,remove these,and the bottom section will slide right out of the hose.using an 11 mm flare nut wrench,gently loosen the brake line from the bottom of the front proportioning valve.it is essential to be careful with this step,as the nut will strip easily.i cannot stress enough the importance of the flare wrench,as it has better contact with the head.next,take either an adjustable wrench,or a deep socket 22mm ratchet head,and loosen the valve.on removal,repeat these steps with the rear brake line and valve,then place the new valve,turning just until tight(overtightening can damage the valve).replace the brake line nut at the bottom of the new valve.repeat this on the front valve.after this is through bleed your brakes as you normally would when change the brake pads.have plenty of brake fluid available,as it will almost all drain out during replacement of valves.have a drip pan on the ground under the master cylinder before removal of any brake components.

Mar 28, 2009 | 2004 Hyundai Santa Fe

1 Answer

My rear wheel brakeline on durango 1998 blew


Depends on your mechanic ablilites. Steel brake line is basically 0.188 inch diameter line, and the metric 6mm line dia is very closely same.
Dodge uses ISO bubble flare , and not the American standard double flare at the end of the steel tube line. This ISO bubble flare on the steel line then fits into its mate female end which is the rubber hose connector end.
So, easiest way to get rid of the ISO bubble flare and change to American double flare end is:
Some automotive stores such as Parts Plus Auto Stores carry the brass brakeline adapter which has one end being the male end that fits nicely into the rubber hose with its ISO bubble female fitting, while the other end of the brass line adapter is the female end which has the double flare so you can then insert the steel line replacement with standard double flare into this end of the adapter.
Steel line , bungy brake line or equivalent is fine, and has the brake line nuts already on it, and is flared for you too. If you want to stay with ISO bubble line fittings you can get that in bungy brake line lengths too but it is less common for some stores to carry, and that is why the conversion brake line fitting adapter mentioned is so easy a way to change from ISO bubble flare to a double flare for easier use of all steel line being standard American double flared brake line. The brake lines come in straight lengths, 2ft 4ft, and 6ft, so you can use them to fit your necessary total length by connecting them with tubing couplers which the steel tube lines brake line nut gets threaded into.
My same year Durango had its rear line blow thru last year, due to the rusting of the steel brake line. I just got done last week, doing a entire steel line replacement myself. It was a medium sized effort for sure. You should check the other lines for the entire brake system to see if you need to replace more than just that section which failed for you, as my lines showed heavy corrosion at many other locations in the brake line system.
It is easy to double flare brake line tubing , and Sears sells its craftsman brand of brake line double flare tool kit for that purpose at about 60 bucks if I recall it right.
One thing you should do when doing your own double flaring, is to use a dial caliper to measure the diameter of the flare at its widest flared end, to insure you are within the required diameter of flare to insure proper sealing when you tighten down the tube flare nuts. I recall the flare diameter is supposed to be 0.272 inches , plus or minus 0.006 inches ( so range of dial caliper measuring of that formed flare should be between 0.266 inch and 0.278 inch) to insure the right diameter of flare for good sealing.
You can also get steel galvanized tubing line in coils of 20ft and more, with a bunch of brake line nuts ( all this is standard american brake line nuts, for double flared line fitting) from Inline Tube company; www.inlinetube.com.
Check out the great tech info from FEDHILL website, www.fedhillusa.com
Good luck, I did it so you can do it and feel satisfied and safe for the family with solid and sound steel line that is much better than chancing an accident via leaving the rusted line in place.

Aug 02, 2008 | 1998 Dodge Durango

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