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Old 03-15-2015, 08:23 PM
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Brake wheel cylinder question

Got a question about brake wheel cylinder here. While I was serving my drum brake on my 06 TJ, I took the rubber parts off the wheel cylinder as well as the piston to clean them out. When I was pushing the inside of the cylinder( I think I was pushing the seal and the spring), some brake fluid leak out. Is that normal? I didn't see any fluid outside of the rubber before I took it off. I am sure it wasn't leaking before and it only happened when I push the cylinder without pistons in it. Someone may say replace them anyway, the thing is I already assembled everything and got new shoes and drum on it. I wish I can save the trouble to go through them again if my situation is normal enough. Can anyone help?

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Old 03-15-2015, 08:54 PM   #2
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If you hold your foot on the brake pedal is it firm and not going down? This would tell you if it is leaking now that you have reassembled.

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Old 03-16-2015, 08:58 PM   #3
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Quote:
Originally Posted by REAL View Post
Got a question about brake wheel cylinder here. While I was serving my drum brake on my 06 TJ, I took the rubber parts off the wheel cylinder as well as the piston to clean them out. When I was pushing the inside of the cylinder( I think I was pushing the seal and the spring), some brake fluid leak out. Is that normal? I didn't see any fluid outside of the rubber before I took it off. I am sure it wasn't leaking before and it only happened when I push the cylinder without pistons in it. Someone may say replace them anyway, the thing is I already assembled everything and got new shoes and drum on it. I wish I can save the trouble to go through them again if my situation is normal enough. Can anyone help?
if you pull the rubber boot back at the 6 o clock position and it's wet with Brake fluid the wheel cyl is bad...
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