Notices
964 Forum 1989-1994
Sponsored by:
Sponsored by:

Brakes locking up

Thread Tools
 
Search this Thread
 
Old 05-14-2010, 03:56 PM
  #16  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Default

Well... lines that came in are the same lenght as the one in the car...
Old 05-14-2010, 11:51 PM
  #17  
Marc Shaw
Super Duper Moderator
Lifetime Rennlist
Member
 
Marc Shaw's Avatar
 
Join Date: Nov 2004
Location: YQU
Posts: 7,774
Likes: 0
Received 15 Likes on 13 Posts
Default

I can try and carefully measure the length of mine and get pictures if it would help.

Marc
Old 05-15-2010, 08:22 PM
  #18  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Cool

Originally Posted by Marc Shaw
I can try and carefully measure the length of mine and get pictures if it would help.

Marc
Marc, if it is not too much trouble... I need to do a few test that Bill suggested. But it would be great to see what your setup looks like.









Man, what a mess! Tomorrow morning is "Get that **** out of the way" Day... Need to put away all the FIAT spare parts....



Old 05-23-2010, 07:24 PM
  #19  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Default

Well... first test without tires and nothing locks up... second test with wheels in the air and no lock up...

I am going to replace the boots and the A-arm bushings and raise the car a little to see if that is the problem... When I installed the suspension it ended up lower than it was before, maybe that is the problem. I have been meaning to raise it a little anyway. Will report back.
Old 05-24-2010, 06:15 AM
  #20  
ttAmerica RoadsterAWD
Three Wheelin'
 
ttAmerica RoadsterAWD's Avatar
 
Join Date: Jan 2005
Location: Eagle, ID
Posts: 1,433
Likes: 0
Received 3 Likes on 3 Posts
Default

Hi Jaime!
When you turn your steering wheel all the way, do the brakes actually lock up-like do they make your car skid or does it just slow it down? Your second picture above shows some tire rub (I think) on the wheel well (draw a horizontal line from top of your caliper til you hit the well in front). Smear some white tooth paste evenly on that spot, put your wheels back on, lower your car and drive to reproduce symptom. Then put her back up, take off the tire and see if your tire has scraped the tooth paste off...

Are you sure its the front lockup up and not the back? Maybe you can go to a grassy field and go about 10mph and quickly turn while a friend observes to see the behavior of both front and back wheels....maybe record it on tape and show it here for us to see?

If your brakes actually lock up.... well, I'd have to think about it some more.....

Jaime

Last edited by ttAmerica RoadsterAWD; 05-24-2010 at 06:51 AM.
Old 05-29-2010, 12:16 PM
  #21  
Indycam
Nordschleife Master
 
Indycam's Avatar
 
Join Date: Sep 2004
Location: not in HRM
Posts: 5,061
Likes: 0
Received 2 Likes on 2 Posts
Default

Any news on the locking up brakes ?
Old 05-29-2010, 11:24 PM
  #22  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Cool

Originally Posted by Indycam
Any news on the locking up brakes ?
Oh! Look! A Squirrel! Checking shift linkage...

Oh! Look! A Squirrel! Replacing A-arms bushings...

Oh! Look! A Squirrel! Paint the interior of the FIAT with POR15...

Oh! Look! A Squirrel! Take family to the movies...

So nope... nothing yet... new lines are the same so returned those to Pelican Parts in part exchange for engine mounts...

Raising the front of the car to rule out if the problem is because the car is sitting too low.
Old 05-30-2010, 12:16 AM
  #23  
Marc Shaw
Super Duper Moderator
Lifetime Rennlist
Member
 
Marc Shaw's Avatar
 
Join Date: Nov 2004
Location: YQU
Posts: 7,774
Likes: 0
Received 15 Likes on 13 Posts
Default

Originally Posted by Wachuko
Marc, if it is not too much trouble... I need to do a few test that Bill suggested. But it would be great to see what your setup looks like.
Sorry Jaime - I am out of town at the moment but still plant to do this for you when I get home.

Marc
Old 05-30-2010, 10:46 AM
  #24  
Indycam
Nordschleife Master
 
Indycam's Avatar
 
Join Date: Sep 2004
Location: not in HRM
Posts: 5,061
Likes: 0
Received 2 Likes on 2 Posts
Default

"Paint the interior of the FIAT with POR15..."
Uh ?

If you get your car back on the ground , does cracking open a bleeder unlock the locked up brake ?
Old 05-30-2010, 10:59 AM
  #25  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Cool

Originally Posted by Indycam
"Paint the interior of the FIAT with POR15..."
Uh ?
My Second FIAT - The Runner



Doing that inside as well before I install a new carpet set.

Originally Posted by Indycam
If you get your car back on the ground , does cracking open a bleeder unlock the locked up brake ?
I will check today. What would this prove?
Old 05-30-2010, 11:04 AM
  #26  
Indycam
Nordschleife Master
 
Indycam's Avatar
 
Join Date: Sep 2004
Location: not in HRM
Posts: 5,061
Likes: 0
Received 2 Likes on 2 Posts
Default

If you crack open a bleeder and the brake unlocks then the locking is hydraulic and vice versa
Old 05-30-2010, 03:13 PM
  #27  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Default

More and more I think it is related to ride height... when I took the car out of the lift and drove it out it felt fine... took it for a drive and as soon as the suspension settle down it started acting the same but to a less degree... I will raise it a little bit more to see if that solved the problem once and for all...
Old 05-30-2010, 08:18 PM
  #28  
Indycam
Nordschleife Master
 
Indycam's Avatar
 
Join Date: Sep 2004
Location: not in HRM
Posts: 5,061
Likes: 0
Received 2 Likes on 2 Posts
Default

So you think the wheels were touching ?
Old 05-30-2010, 08:28 PM
  #29  
Wachuko
Professor of Pending Projects
Rennlist Member
Thread Starter
 
Wachuko's Avatar
 
Join Date: Nov 2001
Location: Orlando, FL
Posts: 9,891
Received 21 Likes on 21 Posts
Default

Originally Posted by Indycam
So you think the wheels were touching ?
I tried doing what you suggested, but it is very difficult to do by myself. The other suggestions of doing the testing with the suspension loaded is also not easy to do... I will have to wait until my father-in-law is back to test those suggestions.

I am not sure if it is that the wheels are touching, but the car felt normal before the suspension settled... that is why I think it might me height related. It is an easy test that I can do quickly and drop again if that is not the problem.
Old 05-31-2010, 09:52 AM
  #30  
Bill Verburg
Addict
Rennlist Member

 
Bill Verburg's Avatar
 
Join Date: May 2001
Posts: 12,311
Received 533 Likes on 369 Posts
Default

Is it possible that the steering or sway-bar is interfering w/ the brake linkage at the vac can/mc?


Quick Reply: Brakes locking up



All times are GMT -3. The time now is 08:25 AM.