Before disassembly. The condition is pristine, so we need to be careful not to get it dirty during cleaning.
The customer reported fluid seeping from the bleeder, so we checked it. No problems found.
The pin isn’t fully seated, but that’s not a problem.
We’re not fans of seal tape, so we checked.
Confirmed. I’ve never seen seeping unless something really unusual happens. What’s happening is that residual fluid gets pressurized when the cap is installed and comes out from the side.
So wrapping seal tape around the bleeder is pretty questionable in my opinion.
After tightening the bleeder, spray brake cleaner (preferably one that dissolves fluid) into the hole.
Then wrap a rag around it and blow air from the gun until nothing comes out anymore, and you won’t get any seeping.
Fluid changes are pretty tedious, you see.
It’s like the saying “I got poop on my pants, but… ⇒ that’s because you didn’t wipe thoroughly enough.”
When it’s anodized, the seal groove doesn’t corrode and bubble up as easily, which is helpful. Some contamination probably gets into the dust seal backing during caliper cleaning too.
After blowing it out with the air gun, use a heat gun to make sure you remove all moisture. I think that’s the way to go.
