93 honda civic dx 4dr

a friend of mine brought there car to me saying they wanted me to replace there brakes. there brakes are fine but there was no brake fluid in the Reservoir so then i found the leak. the leak seems to be coming from the inside of the hole. I don't know if there was a plug in there or if there is like a relief valve or something in there that went out. any input on how to stop it from leaking would be appreciated because i don't know if i need to replace the whole thing or some valve on the inside of this thing.

 

looks like the proportioning valve I would just replace it an rebleed the entire brake system

 

ok so the whole thing has to be replaced no internal replaceable parts then

 

It is servicable , but the cnances of you getting the kit to do it are slim to none, and there is always the chance you may get thw wrong springs etc and mess the whole braking balance.
Best to just get a new valve and replace it.
Buy a good 10mm brake line wrench too, you will need it.

 

thinks for the input fellas i jus went done to the junkyard and found one. yea taking hard brake lines off are a bitch i stripped most of mine on my teg.