Brakes, Steering, Suspension, Tires, & Wheels  
Sponsored by:
Sponsored by: Kumho

Pump, pump STOP! Pump, pump, STOP!

Thread Tools
 
Search this Thread
 
Old Oct 7, 2007 | 08:22 AM
  #1  
rhw's Avatar
rhw
Thread Starter
|
More Turbo
Joined: Nov 2004
Posts: 701
Likes: 0
From: colorado
Pump, pump STOP! Pump, pump, STOP!

I'm sure this is an obvious question but I really stink at brakes so I'm going to ask anyway! On my 71 Ranger, drums all around, the brakes are real wimpy the first two times you push the pedal down. If you pump it two to three times, they feel great. You really have to plan ahead before you stop in this one! What do you think doc? will she make it?
 
Reply
Old Oct 7, 2007 | 10:52 AM
  #2  
blue beast's Avatar
blue beast
Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
Have the rubber lines ever been replaced? Older rubber lines swell out when you get on the brakes, leading to a mushy pedal feel. Get a mity vac hand pump, when you bleed the brakes with it first pull all the old fluid out of the resovoir then refill it with fresh fluid that way you get fresh fluid to the wheel cylinders instead of a crappy mix of fresh and old!! Start at the right rear and pump that mity vac until you get fresh fluid into the bottle. then bleed the rest of the brakes!!
 
Reply
Old Oct 7, 2007 | 12:57 PM
  #3  
rebocardo's Avatar
rebocardo
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
You need to adjust the drums better. On my 71 F-100 first push would lock them up solid if you were crazy enough to do it. You can add brake adjusters to the front too. That helps.
 
Reply
Old Oct 7, 2007 | 12:59 PM
  #4  
lwfox002's Avatar
lwfox002
Elder User
Joined: Aug 2007
Posts: 846
Likes: 2
From: Paris, Arkansas
May need to rebuild the master cylinder.
 
Reply
Old Oct 7, 2007 | 04:00 PM
  #5  
77F250Custom4spd's Avatar
77F250Custom4spd
Senior User
Joined: Jul 2007
Posts: 112
Likes: 0
Have you tried bleeding them? Cause thats what normally happens when air gets in the system, you have to pump the pedal a couple times to make it stop.
 
Reply
Old Oct 7, 2007 | 04:43 PM
  #6  
kcb37's Avatar
kcb37
Senior User
Joined: Jun 2006
Posts: 493
Likes: 0
If the rubber lines are old replace them. As was already said they will swell and the pedal won't feel good. It also sound like you have air in the lines. Bleed all four of them after you put the rubber lines on and see how they feel.
 
Reply
Old Oct 8, 2007 | 12:27 AM
  #7  
rhw's Avatar
rhw
Thread Starter
|
More Turbo
Joined: Nov 2004
Posts: 701
Likes: 0
From: colorado
Thanks for all the advice!. I think I will get one of those pumps and flush out all the ond fluid, then bleed them and go from there. I'll let you know how it turns out, thanks again!
 
Reply
Old Oct 8, 2007 | 02:33 PM
  #8  
machin3's Avatar
machin3
Freshman User
Joined: May 2006
Posts: 27
Likes: 0
From: Clarksville,TN
Does the pedal very slowly travel to the floor after you pump it? If so , you have a leak somewhere. (If it's not visible it is an internal leak in the master cylinder.) If not, you have air in the hydraulic system. Get a friend and bleed the air out.
 
Reply
Old Oct 9, 2007 | 01:54 PM
  #9  
blue beast's Avatar
blue beast
Posting Guru
Joined: Nov 2004
Posts: 2,155
Likes: 1
From: sunny fla sometimes windy
If the metal lines are rusted, the hole could be small enough to let air in but not let any fluid out, So bleeding would cure the problem, but the problem would come back eventually since it will bring air in whenever it cooled down, as well as some humidity to contaminate it with water as well!!
 
Reply
Old Oct 12, 2007 | 12:17 AM
  #10  
ynevada's Avatar
ynevada
Senior User
Joined: Sep 2007
Posts: 328
Likes: 0
they are out of adjustment. plain and simple.
 
Reply




All times are GMT -5. The time now is 04:22 AM.