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Old 07-17-2011, 01:26 PM
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Rear disc brakes leaking on my '66 Impala

I transferred the rear disc brake setup from a 10 bolt to a 12 bolt rear end which I installed on my 66 Impala. Upon trying to bleed the brakes the fluid just gushed out where the brake line connects to the caliper.

I noticed that there are what appears to be brass or copper (or alloy) washers. I re-installed the same ones, one above and below the fitting that is connected to the caliper and tightened them down pretty snugly, but they still leak.

The hose itself is not leaking. Do the leaks occur because these washers need to be replaced (ie one use only)? Any other possible cause? See photos.

Thanks

Dave



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Old 07-17-2011, 02:09 PM
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Get new brass washers
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Old 07-17-2011, 02:49 PM
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They're called "crush washers" and they should be replaced every time.
They are available in copper or aluminum, but I think copper is recommended for brakes.
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Old 07-17-2011, 04:31 PM
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Thanks gents. Had a feeling that's what it was.
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Old 07-17-2011, 04:40 PM
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I never change them. I always reuse the old ones. The replacement ones are usually of lower quality then the originals. make sure the washers and the surfaces are clean before assy and you wont have any leaks.
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