Leaky or normal?

[Slow Loris]

So I’m bench bleeding a new master cylinder…seems to have gone fine but then I took out the fittings and the front brake circuit is dripping quite a bit of fluid, just sitting there on the vice, no fittings attached and no pushrod.
 

Never had one do this. Is that…wrong or normal? 280z m/c so disc/drum residual valves internally (I think) if that’s part of this? 

[ggzilla]

The residual valve is only on the drum part of the M/C

 

I think it is normal for the leaking. I put plugs in the outlets, then install in the car, hook up the lines, and final bleed at each wheel cylinders

[Slow Loris]

Okay, good to know thanks. Seemed weird just from the one circuit only too. It sure seems to do everything else it’s supposed to, squirting out brake fluid and all. Very limited experience but have put probably 3 or 4 different ones on this truck now for various reasons and never remember one dripping like this before. Maybe that explains why I keep replacing them! 

[Slow Loris]

Put er in, seems to work great.

 

Next brake leak question…

 

After driving, a teeny tiny amount of brake fluid showing up on lower rump of calipers (both sides in front). I can only imagine it’s coming from the bleeder screw based on where it’s at. 
 

 

 Note there is no fluid in this photo, but this is where it shows up. A little smear up in the top of the yellow area and a drop forming on the lower surface of the rounded edge down there. It’s weird I can’t ever see it really emanating all the way from the bleeder (or the banjo/hose area) just in the yellow area. I dunno if something else could be flinging fluid on it?? 
 

I’ll get a pic next time I see it. 
 

Anyway, if it’s the bleeders, and they are tight…replace the dang things I guess? 

[datzenmike]

Two ways to go here. It will likely just go away on it's own or it will get worse and you'll know for sure what is causing it.

[Slow Loris]

Both useful options. Well I’ll keep crawlin under there and lookin.

[datzenmike]

Only till the source is obvious. I would presume the bleder but you never know.

[Slow Loris]

Yeah it looks like there’s a tiny drop oozing out the threads of the bleeder. Was trying to find the right balance of tight but not thread-stripping tight. Will go a little tighter. 

[ggzilla]

You might want to remove the bleeder and inspect it, maybe there is a nick in the threads or something. Or in the end of the bleeder where it seals with the fluid passage

 

It doesn't take much torque to install the bleeder. But after they been on for years, they might be real tight to come off again

[Slow Loris]

I shoulda done it before I installed the calipers— these are a reman set, fresh off the shelf. But…I didn’t check. 
 

Yeah, ok, I’ll take it out and inspect.