I am changing out the master cylinder on my 94Q. There are 3 lines coming out of the brake fluid reservoir, 2 go to the master cylinder, so where does the 3rd one go? It is larger than the other two.
I don't think you are talking about the clutch master cylinder fluid supply hose which attaches to the brake fluid reservoir and goes through a hole in real steel firewall and attaches to clutch master cylinder under the dash. There is not steel line that hose attaches to either.The clutch reservoir hose goes to the front of the false firewall - no need to remove that. The hose is a bout a foot long until it reaches the steel pipe that runs behind the engine, in front of the false fire wall, near the rule lines.