Ccfish, Please dont hesitate to ask questions here. This is a fairly light topic here and little is archived on it. Meauring the lines is the proper method and ss lines are out there for more $$. We have the base line kits available with flex hoses.On the disc brakes you can cycle the front coupler with a pry bar inside to bleed, with a buddies assistance to release the bleed screw on the caliper cylinder when you press the master piston, then tighten the leed screw before you release it. Repeat the process from the shortest distance line first and bleed both lines twice. On a drum brake trailer you cause the safety cable to bleed by pulling it with something wrapped inside the cable for leverage like a handle. Same process on the wheel cylinders of releasing the cylinder when you have pressure on the cable and tightening the bleeder screw before (BEFORE) you release the cable. Drop a hose into a glass jar to see the line burp air. Once you have no air bleed the opposing side and repeat that process to remove that little bit of air that got pinned at the T fitting slightly past the junction. Air compresses and oil does not. DOT 3 brake fluid is used in all BCB trailers and DOT 5 (silicone added) can only be used if the fluid is all purged and flushed totally. New lines would allow this and if you rebuild all the cylinders draining and cleaning them you can go to DOT 5. Put a label on the coupler that it contains DOT 5 so no one ices the fluids accidentally. They do not mix together well. BCBLast edited by Bass Cat Boats on February 9th, 2014, 3:03 pm, edited 2 times in total.
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