dry brake line
Thread Starter
Advanced
Joined: Jul 2009
Posts: 94
Likes: 1
dry brake line
So the front passenger side caliper on my 78 started leaking. Last weekend when I was determining if the caliper cylinders were sleeved I could not get the brake hose detached from the brake line, and I was out of time but wanted to get my order in for new calipers or an oring kit as there were some sales at ecklers. So I cut the brake hose so I could get the caliper off for inspection, and I idiotically didn't clamp off the hose so the fluid drained out of that line. I looked this morning and there was still about a 1/4" of fluid in the master cylinder so I did add some just to keep it from running totally dry.
Anyway, how much of an issue have I caused myself? I'd like to flush all the old fluid out of the system anyway, but obviously there's probably quite a bit of air in the lines now.
Anyway, how much of an issue have I caused myself? I'd like to flush all the old fluid out of the system anyway, but obviously there's probably quite a bit of air in the lines now.
Race Director
Joined: Jul 2004
Posts: 12,676
Likes: 329
From: Scottsdale Arizona
If it had, you might have had to unbolt the MC and prime it. As it is, it should have no impact as you have to bleed the brakes when replacing the caliper anyways.
You might want to either crimp or fold over the cut brake line to reduce fluid loss while waiting for the parts. Also, put some PB Blaster on the brake line connection.
You might want to either crimp or fold over the cut brake line to reduce fluid loss while waiting for the parts. Also, put some PB Blaster on the brake line connection.
Last edited by CA-Legal-Vette; Jun 1, 2019 at 11:20 AM.
Melting Slicks
Joined: Jun 2011
Posts: 3,114
Likes: 592
So the front passenger side caliper on my 78 started leaking. Last weekend when I was determining if the caliper cylinders were sleeved I could not get the brake hose detached from the brake line, and I was out of time but wanted to get my order in for new calipers or an oring kit as there were some sales at ecklers. So I cut the brake hose so I could get the caliper off for inspection, and I idiotically didn't clamp off the hose so the fluid drained out of that line. I looked this morning and there was still about a 1/4" of fluid in the master cylinder so I did add some just to keep it from running totally dry.
Anyway, how much of an issue have I caused myself? I'd like to flush all the old fluid out of the system anyway, but obviously there's probably quite a bit of air in the lines now.
Anyway, how much of an issue have I caused myself? I'd like to flush all the old fluid out of the system anyway, but obviously there's probably quite a bit of air in the lines now.
Then do this
https://www.corvetteforum.com/forums...-cylinder.html
Once the MC is again free of air press the brake pads in forcing the caliper pistons into the caliper bore. Shim / clamp in place and pressure bleed with 20-25 PSI at the MC.
Then do a complete brake fluid flush on the other calipers. To reduce the amount of fluid required start with the longest brake lines to the shortest brake line.
