Brake Fluid Leak
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I have a moderate break fluid leak coming from the right rear outside bleeder valve on my '89 S2. I am planning on bleeding the breaks and putting the current fluid back in. The breaks were recently bled by a Porsche mechanic in prep of a drivers ed event that never happened due to rain. I am hoping that they just must not have tightened the screw enough. Does anyone have any other thougths on what could cause a leak in the bleeder valve? (PS - I am just starting to due my own work on the car and this will be my first break bleed.)
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Replacement bleed screws are available from Paragon Products and others. The tightening torque spec on these screws is actually quite low (6-9 ft. lbs. according to factory manual). The calipers are aluminum, so risk of stripping threads is present.
What makes you think it's leaking? It's common to get a little bit of fluid coming out from under the rubber cap after bleeding. Brake fluid has a tendency to get everywhere it can.
Also, for a couple of dollars more it's well worth getting in the habit of only putting new fluid in. If it's just a partial bleed to quickly switch the screw out, then I agree it's okay to kinda just re-use a small bit of fluid.
What makes you think it's leaking? It's common to get a little bit of fluid coming out from under the rubber cap after bleeding. Brake fluid has a tendency to get everywhere it can.
Also, for a couple of dollars more it's well worth getting in the habit of only putting new fluid in. If it's just a partial bleed to quickly switch the screw out, then I agree it's okay to kinda just re-use a small bit of fluid.
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Almost forgot... If you're going to get in the habit of bleeding often, the Motive Power Bleeder is the hot set-up. If it's just an occasional thing, perhaps someone in the area can loan theirs to you.
No commercial interest, just a happy customer, blah blah blah.
No commercial interest, just a happy customer, blah blah blah.
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Thanks Dave. I think the leak is a little more than just the normal drip. I have seen a couple of small puddles under the right rear and have had to add fluid (idiot light came on) twice.
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I would take it back to the mechanic that did the work previously and ask him about it. Also, reusing the old fluid is not advisable, fresh fluid is a couple of bucks annyway. I agree with Dave, Motive Power Bleeder is the only way to bleed brakes, makes it so much easier and faster.
Cheers
Rob
Sydney Australia
Cheers
Rob
Sydney Australia