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Originally Posted by AndyA6
Well, took the top of the bleeder valve off.
First of all, these screws were not really tight, barely handtight.
Everything inside looked totally ok, no rips, dirt or any other damage. I cleaned everything and screwed the top back on.
Judging by the residue and the coolant leaking it seems to me that the top simply wasn't tight enough.
After a short drive it looks like all is ok but I will report back later.
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The bleeder valve comes in two parts. There's the part with the valve on it, and then there's a collar. The screws run through the cap and collar and "bite" into the tank. The collar has two o-rings that seal it to the tank. The're side seal, so screw torque doesn't effect their seal. When mine leaked, it only happened occasionally. If you take off the cap and tug and wiggle at the collar, you can get it off and replace the o-rings.
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