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Front brake bleeding no pressure ???

6856 Views 12 Replies 7 Participants Last post by  LedFTed
I have a Honda RANCHER 2004 trx. I started out by just wanting to replace the front brake pads..well..2 days later I went ahead and bought a new master cylinder, and each of the front brake cylinders (2 for each front wheel)...I didn’t buy the rebuild kits cause it was almost the same price as the fully assembled part.. so after putting the new master cylinder on, and all 4 of the front cylinders, I started to bleed the lines.. I filled the master with fluid, pumped the handle several times, opened the bleeder valve on the wheel and let the bubbles come out. Did this many times on each front wheel until I saw no air bubbles coming out. The problem is there is no pressure on the front brakes unless I pump the lever about 10 times then the brakes work, I let go of the lever and again no pressure. I went back to bleed again, no air bubbles! No leaks that I can see on any of the lines. What did I miss? I am confused because all the parts are brand new OEM. Anyone have any ideas or tips? I’m stumped. I don’t think I have a clog in any of the lines or else I wouldn’t be getting fluid to come out the bleeder valve right?
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Adding to what's been said, be patient. Chances are, you do not have bad parts. Make sure the shoes are properly adjusted, then continue to methodically bleed the system.
A side note, not directly pertaining to your current condition- I would suggest replacing the brake lines with braided hoses, while you're working on the system. I had replaced the brake shoes on my 300FW (same brake setup as your Rancher). While they worked, the brakes were weak and spongy. I eventually purchased and installed the disc brake conversion- to find that the application of the front brakes were still spongy. Watching the original brake lines while applying the brake, I could see the hoses slightly swell. I was losing brake pressure through the hose swell. I replaced them with braided lines, and the application was rock hard. I am sure, that if I had replaced the hoses and stuck with the factory drums and shoes, I would have been satisfied with the factory braking (I don't regret the disc brakes, but my central issues was the hoses, not the drum brakes). Point is, it's worth the trouble and money to put braided lines on- you get all of the brake pressure to the cylinders.
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