Welcome to the North American Subaru Impreza Owners Club Tuesday October 21, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Service & Maintenance

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 07-21-2009, 03:27 PM   #1
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default Replacing calipers - block hose?

Hey, hoping to replace the rear calipers on my 02 soon. Am wondering if I need to do anything to prevent fluid loss after I disconnect the hoses. Most guides don't say anything, but one guide said to thread a bolt through and close it with a nut to stop fluid loss, and another shows to use a pair of vice-grips to clamp on the hose... doesn't seem advised on 8+ year old rubber to me...

Anyway, should I worry about it? Obviously I'll put a drain pan down and will be bleeding the brakes, but do I need to worry about the master cyl. drying out?

Thanks,

-tim
* Registered users of the site do not see these ads.
TimStevens is offline   Reply With Quote
Old 07-21-2009, 04:37 PM   #2
rick-l
Scooby Specialist
 
Member#: 33868
Join Date: Mar 2003
Location: Chesterfield, MO
Vehicle:
2003 wrx
srp

Default

I have never done this on my WRX but I think if you put a board against the seat and slide it into the brake pedal to push it down part way the fluid will not run out.

I wouldn't worry about the master cylinder drying out but I would worry about getting air into the ABS which I don't think is desirable.

Does anyone know the Motive Products adapter that fits a WRX so you don't have to use that universal adapter with the chain?
rick-l is offline   Reply With Quote
Old 07-21-2009, 04:45 PM   #3
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default

Wow, pushing the pedal in would keep the fluid from running? How so? I'd think that'd make it flow more.
TimStevens is offline   Reply With Quote
Old 07-21-2009, 04:55 PM   #4
rick-l
Scooby Specialist
 
Member#: 33868
Join Date: Mar 2003
Location: Chesterfield, MO
Vehicle:
2003 wrx
srp

Default

Quote:
Originally Posted by TimStevens View Post
Wow, pushing the pedal in would keep the fluid from running? How so? I'd think that'd make it flow more.
I think it moves the piston in front of the hole that it fills from the resevoir
rick-l is offline   Reply With Quote
Old 07-21-2009, 04:59 PM   #5
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default

Ahh, interesting...
TimStevens is offline   Reply With Quote
Old 07-21-2009, 05:56 PM   #6
TrickNipple
moon moon
Moderator
 
Member#: 86213
Join Date: May 2005
Chapter/Region: NWIC
Location: Wild wild Northwest
Default

I just replaced the calipers in my wifes obs and didn't lose much fluid. We just unhooked the brakelines. You will lose a little fluid but since you have to rebleed due to dry calipers it won't matter. We even accidently hit the brake pedal and didn't notice much fluid loss. You should be fine just unhooking the calipers.
TrickNipple is offline   Reply With Quote
Old 07-21-2009, 06:51 PM   #7
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default

Okay, thanks. Sounds like so long as I don't spend hours with the caliper disconnected I should be okay.
TimStevens is offline   Reply With Quote
Old 07-22-2009, 03:18 AM   #8
Charlie-III
Scooby Specialist
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: 07456, North NJ
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper Wagon

Default

Quote:
Originally Posted by TimStevens View Post
Okay, thanks. Sounds like so long as I don't spend hours with the caliper disconnected I should be okay.
Yep, just have the new caliper ready when you remove the line from the old caliper. You should only lose a few drops of fluid.

Now would be a good time to do SS lines as well if the others are 8+ years old.
Charlie-III is offline   Reply With Quote
Old 07-22-2009, 09:20 AM   #9
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default

Tempting, I'm already spending enough on this brake job as it is

Did I mention as soon as I get done on the WRX I have to turn around do the brakes on my MR2. Ugh.
TimStevens is offline   Reply With Quote
Old 07-22-2009, 09:34 AM   #10
nate379
*** Banned ***
 
Member#: 217686
Join Date: Jul 2009
Chapter/Region: AKIC
Location: Palmer, AK
Vehicle:
03 WRX

Default

Brake fluid is cheap, just put a drain pan under it and let it drain a bit.
nate379 is offline   Reply With Quote
Old 07-22-2009, 09:53 AM   #11
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default

Oh I'm not worried about losing fluid, I'll go through a bottle bleeding all four corners anyway. I'm just worried about getting air deep in the system.
TimStevens is offline   Reply With Quote
Old 07-24-2009, 01:25 PM   #12
K Dub
Scooby Newbie
 
Member#: 210438
Join Date: May 2009
Chapter/Region: Tri-State
Location: Come at me, bro
Vehicle:
2012 Jeep
Wrangler Rubicon 4D

Default

Quote:
Originally Posted by TimStevens View Post
Oh I'm not worried about losing fluid, I'll go through a bottle bleeding all four corners anyway. I'm just worried about getting air deep in the system.
That is generally something to be worried about.

As others said, if you have the new caliper ready to go on and as you said, as long as you don't spend hours with them disco'ed, you'll be fine.

HTH.
K Dub is offline   Reply With Quote
Old 07-24-2009, 09:39 PM   #13
Horkus
Scooby Newbie
 
Member#: 112667
Join Date: Apr 2006
Chapter/Region: VIC
Location: Coquitlam
Vehicle:
2002 WRX wagon
WRB

Default

Just let it all out. You may as well just flush the complete brake system will fresh new fluid. It's not that expensive anyways. and you get improve pedal feel.
Horkus is offline   Reply With Quote
Old 07-25-2009, 01:30 AM   #14
Charlie-III
Scooby Specialist
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: 07456, North NJ
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper Wagon

Default

Quote:
Originally Posted by Horkus View Post
Just let it all out. You may as well just flush the complete brake system will fresh new fluid. It's not that expensive anyways. and you get improve pedal feel.
Flushing/bleeding is one thing, draining and then refilling is another. Unless, of course, you have a power bleeder.
Charlie-III is offline   Reply With Quote
Old 08-13-2009, 10:10 AM   #15
TimStevens
Scooby Specialist
 
Member#: 4817
Join Date: Mar 2001
Chapter/Region: NESIC
Location: Albanyish, NY
Vehicle:
2012 STI, '02 WRX
'91 MR2, '05 Speed Triple

Default

I did the deed last weekend, and it was indeed pretty easy. I was expecting a high-pressure surge of brake fluid for some reason, but it was just a little dribble. Plenty of time to clean off the mating surfaces of the brake line and put on the new caliper without losing too much fluid. Only real problem was stuck rear rotors (parking brake was off), but with a little help from Mr. Blow Torch and Mrs. 8lb Sledge they popped off.

Old:



New:



The reason I was replacing them is because I believed one side had seized.I was getting some awful noises and it wasn't cleaning the rotor off, so I thought that side had stuck on and wore the pad down. I had just checked the pad material when I swapped summer wheels on a few months ago and there was plenty left at that time, so that was my conclusion. Imagine my surprise when I found out that the braking material had actually separated from the backing plate and fallen out.



You can see what's left of the backing plate on the left, and the material that came falling out of the caliper on the far right (it was cracked in a few pieces). I'm pretty sure these are Hawk pads, which I won't be buying again for obvious reasons.
TimStevens is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Where to find replacement caliper bolts? Furious George Brakes, Steering & Suspension 6 02-05-2008 02:58 PM
Replacement Caliper Bracket and pins... 2k2 Brakes, Steering & Suspension 0 11-13-2006 02:08 PM
Replacement fuel line hose digitaltekniq Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 10 12-30-2003 04:27 PM
so does it make sense to replace the IC hoses the same time I install my downpipe? Big_Hitter Texas Impreza Club Forum -- TXIC 5 10-16-2002 01:16 PM
if larger diameter rotors, need to replace calipers? 96Lconversion Brakes, Steering & Suspension 8 02-27-2001 10:32 AM


All times are GMT -4. The time now is 10:21 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.