[ajahearn]

I recently had two days at Laguna and on the 2nd day I noticed a little white runoff from the bleeder valve which I assume is brake fluid. Obviously tightening is likely to make the situation worse. Any suggestions? No signs before or after my track days. Thanks in advance.

 

[ajahearn]

I should have noted this was one of the rear calipers.

 

[imstimpy]

It is my belief that fluid is trapped in the port within the bleeder valve as well as in the threads between the bleeder valve and the caliper. I use a small syringe to extract the fluid inside the valve and I installed Speed Bleeder thread sealant on the threads. Not an issue the last two track events following a bleed.

I wrote more about it in my track journal:

imstimpy's 981 S Track Build Journal - Rennlist - Porsche Discussion Forums

987 - 981 Forum - imstimpy's 981 S Track Build Journal - Table of Contents Summary of Modifications (scroll below) Introduction (https://rennlist.com/forums/987-981-forum/1137472-imstimpy-s-981-s-track-build-journal.html#post15756793) Wheels and Tires...

rennlist.com

 

[Schroedinger]

I had one of my rear caliper bleeders work loose at a track day last weekend. I lost almost the whole load of brake fluid from the master cylinder, it sprayed all over the wheel. I lost brakes and the warning indicator came on before I realized what was happening; fortunately was able to stay out of the gravel pit. Is this a known issue with these cars?

 

[ledbette]

I had one of my rear caliper bleeders work loose at a track day last weekend.

Did you torque per spec or wing it? I'll admit, I usually wing it.

 

[Schroedinger]

Did you torque per spec or wing it? I'll admit, I usually wing it.

Winged it, like I usually do for brake bleeders. Is there somewhere online that lists out various torque specs for these cars? Haven't found anything.

 

[ledbette]

According to the service manual, the bleeder valve torque is 14 Nm/10.5 ft-lb. Somewhere on this site is a link to the service manual. I've downloaded several different versions of if over the years.

 

[ajahearn]

Somewhere else I read the bleeder valves was <9 ft lbs but thanks ledbette as I found exactly the info you were referencing. Pg 3318 of the manual I have for a Boxster 2013 says 14 Nm (10.5 ft. lbs.)