Squishy brakes
Thread Starter
|
New User
Joined: Jun 2018
Posts: 18
Likes: 0
Squishy brakes
everyone helped me with my last problem so I’m hoping someone can point me in the right direction with my squishy brakes. We did a disk convertion in the front with new lines and good calipers. Rear drums are new and adjusted. Probably went through a gallon of brake fluid bleeding it and still squishy. Any ideas?
Lead Gopher
Joined: Aug 2012
Posts: 10,071
Likes: 1,626
From: Seattle
Did you bench bleed the master cylinder? If not that can cause it.
Here's a Wikihow on it.
https://www.wikihow.com/Bleed-a-Master-Cylinder
Chad
Here's a Wikihow on it.
https://www.wikihow.com/Bleed-a-Master-Cylinder
Chad
Lead Gopher
Joined: Aug 2012
Posts: 10,071
Likes: 1,626
From: Seattle
Incidentally, that article mentions how a mechanic would use a vacuum bleeder. Those or a pressure pot can sure help.
I like my pressure pot but they are not cheap. You might be able to rent one or the other, too.
Chad
I like my pressure pot but they are not cheap. You might be able to rent one or the other, too.
Chad
Logistics Pro
Joined: May 2015
Posts: 4,474
Likes: 974
From: Tri Cities, TN
What differential/proportioning valve did you use? The stock Ford ones have a bleeder valve on them that must be pulled out or pushed in, in order to get fluid to flow to the front brakes. You will still get fluid but you may never get all the air out unless that metering valve is held open.
Thread Starter
|
New User
Joined: Jun 2018
Posts: 18
Likes: 0
So I did bench bleed the master but didn’t realize I had to mess with the proportioning valve. The convertion used 78 f100 parts. I’ll try that. How can I tell if I have a bad valve?
Trending Topics
Logistics Pro
Joined: May 2015
Posts: 4,474
Likes: 974
From: Tri Cities, TN
Brake bleeding
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Mountain Pass
Joined: Nov 2013
Posts: 208
Likes: 9
From: Mason City, IL
Check out the rod length on the power booster. It might not be long enough to go all the way into the master cylinder. Especially if your power booster is aftermarket. That was my issue after doing disc/drum total replacement from drum/drum. I did all new to include lines, calipers rotors, etc.
Thread
Thread Starter
Forum
Replies
Last Post
Holehawgg
1948 - 1956 F1, F100 & Larger F-Series Trucks
9
Jan 6, 2015 01:17 PM
shameless
1973 - 1979 F-100 & Larger F-Series Trucks
5
Oct 1, 2011 03:25 PM
Green Streak
Brakes, Steering, Suspension, Tires, & Wheels
1
Apr 17, 2010 11:43 AM
Dan-79F350
1973 - 1979 F-100 & Larger F-Series Trucks
5
May 17, 2000 03:19 PM