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Thread: Wide L SWB brake caliper piston problems

  1. 03-01-2020, 05:59 PM #11
    Jerry L
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    [QUOTE=davep;1050640]It really depends on how stuck the pistons are, and thus the air pressure required to move them. You were very lucky. When they are good and stuck, the air pressure is high, and so will be the muzzle velocity! Hydraulic pressure is far superior in this regard.

    I am with Dave on this, another method to get the hydraulic pressure is to replace the bleeder screw with a zirc fitting and use your grease gun to pump them out when they are stuck, when really stuck you can let them soak under pressure for a day or two. A simple system that we all have in the garage.

    Best Regards
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  2. 03-01-2020, 09:54 PM #12
    91167coupe
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    Thanks Jerry!
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  3. 03-03-2020, 03:52 PM #13
    66S
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    My grease gun extension pipe screws right into the brake line opening and large type bleeder holes, no need for a coupler and grease fitting.
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  4. 03-04-2020, 07:39 AM #14
    davep
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    Yes, the grease gun fitting tends to be the same 10mm by 1.0 pitch as the brake line fitting and the bleeder & cross-over lines on the aluminum calipers.
    Getting the grease out of the caliper afterward may be difficult, and I am pretty sure the grease will not be brake fluid compatible.
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