"Flyboy is FAA certified insane" (flyboy396)
11/08/2016 at 12:11 • Filed to: Help
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"Flyboy is FAA certified insane" (flyboy396)
11/08/2016 at 12:11 • Filed to: Help | 1
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If the little rubber boot on the plunger end has a tear, will the system leak really badly into the cabin? Because I think that’s what is happening to the 7-series.
Urambo Tauro
> Flyboy is FAA certified insane
11/08/2016 at 12:22 |
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That’s just a dust boot. If the unit itself is leaking, then yes, some fluid could pass through the torn boot and make a mess. But the boot isn’t supposed to hold hydraulic pressure. (Hell, it wouldn’t stand a chance.)
GasolineLollipop191
> Urambo Tauro
11/08/2016 at 12:27 |
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If its a small tear you can clean it and superglue the rubber back together.
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Flyboy is FAA certified insane
> Urambo Tauro
11/08/2016 at 12:48 |
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Thanks for the info, I’m assuming there’s a seal under there that broke. Guess I’ll order a new master cylinder, they’re only about $50.
ITA97, now with more Jag @ opposite-lock.com
> GasolineLollipop191
11/08/2016 at 12:56 |
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There should be no fluid getting past the U-seal on the piston of the master/slave cylinder. The boot is there only to keep debris away from the bore and damaging the piston seal. Any fluid inside the boot means a leaking cylinder that is ready for a rebuild or replacement.
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GasolineLollipop191
> ITA97, now with more Jag @ opposite-lock.com
11/08/2016 at 15:53 |
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Yes but a torn boot needs to be fixed either replacing boot or repairing it.
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ITA97, now with more Jag @ opposite-lock.com
> GasolineLollipop191
11/08/2016 at 16:26 |
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Replacing a torn boot on leaking cylinder would be an exercise in futility. If there is a fluid leak, the torn boot is irrelevant until the leak is addressed. A new boot on a leaking cylinder would do nothing more than contain the leaking fluid until enough builds up to pop the boot off and dump the leaked fluid all one time instead of it dripping out slowly. It would be like applying a band-aid to a shaving cut on the cheek when the carodit artery has been severed.
The rebuild kit will include a new boot, however there often isn’t a good reason to rebuild one anymore unless the cylinder is made out of unobtainium. Entire new cylinders are so cheap these days that it is hard to justify the labor to mess around with rebuilding the old part. Even as a DIY, the bore needs to be honed on a rebuild. I’d venture that many DIY guys don’t have a suitable hone set-up laying around, and buying one probably wipes out any savings.