Thursday, May 17, 2012

DIY - Basic Metal Brake Line Bending & Replacement

This is just a basic metal brake line replacement DIY to help you in case your brake line , fuel line or A/C line break by the nut and it needs a full replacement . They do not sell these lines preshape unless through dealership if manufacture specification call for it or else they come straight . Always remember to measure your line and purchase a slight longer because of bending shrinks the size .                     


All you need is a mini bending tube tool but they do sell other ones . Make sure you bring your line with the ends because there are different sizes and there is no real way to search your vehicles in a auto parts store , The lines are sold as individuals .









In this case it was the brake line to the rubber line and the wheel cylinder . Once you remove the brake line cap it off so it stops leaking and that air doesn't settle in and create moister , because brake fluid should not be expose to air because it will contaminate it and ruin the inside of your brake system .






There are many ways you can use this tool , Even the inside circle can be use to bend around tight corners .


You can do two ways of bending your lines you can try to copy the exact line while its out or in my case I decided to free hand it and  make it where it better suited me . Because sometimes if you re modify it you can put it where its not rubbing in anything or out of the way so when you come back to repair something its not in your way . What I did was I copied the first bend coming from the tightest area where the wheel cylinder is .




I screwed in the wheel cylinder side and by eye I made a mental route of how I would like the brake line to follow . I would put the wheel cylinder side on take it off to bend put it back and take it off to re bend . You can bend with the one side connected but if you have time and are not in a rush its better to do it right cause the objective is not to kink the line you have to have even flow by bending .


Make sure before you put the line back on that you blow air through the line to remove any dirt before you finally tighten it down . Once you completed the brake line you must bleed the line until all the air comes out and you must do a full recycle of fluid because the air can be near the proportional valve . Then if you want might as well bleed the whole system .

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