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Canadian Daves JustKDX
New rear brake line install help
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[QUOTE="pesky nz, post: 1409696, member: 120687"] At reassembly time I always use rubber grease on caliper seals because a lot of other lubricants react with the rubber seals and usually cause them to swell. Depending on the type of rear brake line used you can chech the master cylinder by clamping the brake hose near the bajo bolt on the master cylinder with normals pliers ( only works on soft rubber coated hoses not steel or kevlar braided lines). If the master cyl is good the pedal wil bleed is about three pumps and be hard, you can then open the bleed nipple on the caliper and chase the air out of the system by bleedinf through the pliers. Whats was the original reason for changing the brake line? did the brake work properly with the old line? Master cylinders do 2 things commonly one is leak internally causing a soft pedal that depresses slowly until it bottoms out, the other is when the rubber seals swell and block off the internal bleed hole and no longer allow fresh fluid into the system to make up for pad wear causing the pedal to work at an ever lower point until it stops working. also if you mix different types of brake fluid they can react and cause seals to swell [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
New rear brake line install help
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