Well, direct nut shot.

Last year, I painted my whole engine bay. And yesterday, while working on my car, I realised I have a break fluid leak. There is break fluid EVERYWHERE on the driver side of the ebgine bay. Not a lot, but a fine fine layer on the support beam , on the master cylinder and on the bottom of break booster. Now, theres no need to tell you what that did to the paint job...or what it'll do if I wippe it off...
The wrecked paint job is my first problem.
My bigger problem is, I CANT FIND THE LEAK! Its like a super ninja leak that cant be detected. I mean, I lost half my break fluid over the last 6 months only...Since I put in my new master cylinder. And the break fluid has spreaded like as if the car was oil treated....see what I am saying?

How would I find that leak? Screew in the brake lines tighter, wippe the fluid off, try to repaint (with everything in the way) and call it a day? Can it leak from the reservoir? Its the only freaking thing I didn't do myself on the car (replace the master cylinder) so I dont know what could have been screwed up...

Spec.

 

add UV dye to it and check it daily with a blacklight

 

It takes a Ninja to hunt a Ninja.

 

Did you get new MC with tank on top or did you get new MC and put tank on from old MC?

If you put tank on, chances are, you didn't get good seal. All the ones I've seen that were changed, leaked. What a pita! Get some hose clamps big enough to go around the tank and MC and clamp it down and see what you get. It slowed my leak down enough to only get the seal below the tank moist.

 

My brake fluid leaks from the seal where the resivor is, don't think it could spray though my engine bay on the driver side is covered kinda like you described.