Notices
Motor Sports If you like rallying, road racing, autoxing, or track events, then this is the spot for you.

Tiny bubbles; should I be concerned?

Thread Tools
 
Search this Thread
 
Old Aug 22, 2020 | 01:00 PM
  #1  
kaj's Avatar
kaj
Thread Starter
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,632
Likes: 824
From: Fresno, CA
Tiny bubbles; should I be concerned?

What up guys? I'll get right to it:

This is the only caliper that does this. I'm assuming it's just air getting sucked around the tubing or the bleeder. None of the other calipers do this. Should I be concerned?
calipers were mostly dry when I put them on and this side brake line lost a little bit more fluid than the other.


https://youtu.be/n4KnMMtxR4Y
Reply
Old Aug 22, 2020 | 02:38 PM
  #2  
yip's Avatar
yip
Evolving Member
15 Year Member
Photogenic
Photoriffic
Liked
iTrader: (1)
 
Joined: Mar 2011
Posts: 326
Likes: 35
From: SoCal
Looks like air coming around the bleeder. What method do you use to bleed?

BTW, I loathe bleeding brakes. Just swapped out my calipers on my Golf R and it took 3 full bleeds to get all the air out
Reply
Old Aug 22, 2020 | 02:57 PM
  #3  
Balrok's Avatar
Evolved Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (15)
 
Joined: Jun 2006
Posts: 4,167
Likes: 210
From: North GA
I use the motive bleeder - pump it to 15psi and do at least 3 wheels before having to add fluid usually. But when I don't have a good seal on the hose it tends to suck eraser sized bubbles. I'll normally get those tiny *** bubbles on the first crack after a weekend, bleed for a bit and close. I don't really check for open/close/open/close. If you're good on fresh fluid making it's way there then I'd replace the screw, they're cheap enough.
Reply
Old Aug 22, 2020 | 03:21 PM
  #4  
kaj's Avatar
kaj
Thread Starter
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,632
Likes: 824
From: Fresno, CA
All new fluid and front calipers. I use a motive bleeder at 8psi because anything near/over 10psi starts splitting the old hoses. I had my engine bay sprayed, fixed it, then filled up my camber plate/strut tower area with about 8oz of fluid, which ran down onto the shock.....the upright....etc, when it burst again.
it was so fun.

I did notice the bleeders on the caliper sit a bit more loose than the others, while open. I'm 99% sure that was it.

I take my stuff to the track anyway, so fingers crossed!

Lastly, looks like the X calipers already have SS pistons, so no need to upgrade?
Reply
Old Aug 22, 2020 | 03:29 PM
  #5  
LetsGetThisDone's Avatar
EvoM Guru
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Oct 2013
Posts: 15,973
Likes: 1,629
From: Las Vegas
X calipers do not come with SS pistons. They're aluminum just like 8/9
Reply
Old Aug 22, 2020 | 03:35 PM
  #6  
kaj's Avatar
kaj
Thread Starter
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,632
Likes: 824
From: Fresno, CA
Originally Posted by letsgetthisdone
X calipers do not come with SS pistons. They're aluminum just like 8/9
​​​​​​they sure look shiny. Chrome plated?


Reply
Old Aug 23, 2020 | 02:00 AM
  #7  
LetsGetThisDone's Avatar
EvoM Guru
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Oct 2013
Posts: 15,973
Likes: 1,629
From: Las Vegas
Originally Posted by kaj
​​​​​​they sure look shiny. Chrome plated?

If they're stainless, they're not factory.
Reply
Old Aug 23, 2020 | 10:12 AM
  #8  
kaj's Avatar
kaj
Thread Starter
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,632
Likes: 824
From: Fresno, CA
Originally Posted by letsgetthisdone
If they're stainless, they're not factory.
They came from eBay, so no history. Weird thing is, they sent me two passenger-side calipers, so you would assume from different cars.
Reply
Old Aug 24, 2020 | 11:28 AM
  #9  
kyoo's Avatar
Evolved Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (29)
 
Joined: May 2006
Posts: 10,828
Likes: 281
From: US
it will take a number of bleeds to get all those out. i've bled my brakes 1,000 times, several times with new calipers
Reply
Old Aug 24, 2020 | 11:40 AM
  #10  
RazorLab's Avatar
EvoM Guru
20 Year Member
Liked
Loved
Community Favorite
iTrader: (8)
 
Joined: Aug 2003
Posts: 14,092
Likes: 1,090
From: Mid-Hudson, NY
Originally Posted by kaj
All new fluid and front calipers. I use a motive bleeder at 8psi because anything near/over 10psi starts splitting the old hoses. I had my engine bay sprayed, fixed it, then filled up my camber plate/strut tower area with about 8oz of fluid, which ran down onto the shock.....the upright....etc, when it burst again.
it was so fun.
Old hoses on what? The motive? They cost like $10 to replace.

How you can get any good bleeding from 8psi, I have no idea.
Reply
Old Aug 24, 2020 | 01:11 PM
  #11  
kaj's Avatar
kaj
Thread Starter
EvoM Community Team Leader
20 Year Member
Liked
Loved
Community Favorite
iTrader: (60)
 
Joined: Mar 2006
Posts: 13,632
Likes: 824
From: Fresno, CA
Originally Posted by razorlab
Old hoses on what? The motive? They cost like $10 to replace.

How you can get any good bleeding from 8psi, I have no idea.
Yes, but I needed my brakes done before new hoses would get here. The brakes bled just fine at 8psi. No complaints.
Reply
Old Aug 24, 2020 | 01:31 PM
  #12  
Biggiesacks's Avatar
EvoM Community Team Leader
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 5,690
Likes: 708
From: West Coast
The guys at lancerregister are pushing gravity bleed, compared to that 8psi is pretty serious.
Reply
Old Aug 24, 2020 | 07:05 PM
  #13  
kyoo's Avatar
Evolved Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (29)
 
Joined: May 2006
Posts: 10,828
Likes: 281
From: US
Originally Posted by Biggiesacks
The guys at lancerregister are pushing gravity bleed, compared to that 8psi is pretty serious.
what is gravity bleed?
Reply
Old Aug 24, 2020 | 07:32 PM
  #14  
Biggiesacks's Avatar
EvoM Community Team Leader
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2005
Posts: 5,690
Likes: 708
From: West Coast
You just fill up the master, open up a bleeder and gravity moves fluid from the higher reservoir out through the lower open bleeder. They say it's about 10 minutes per nipple.
Reply
Old Aug 24, 2020 | 07:49 PM
  #15  
kyoo's Avatar
Evolved Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (29)
 
Joined: May 2006
Posts: 10,828
Likes: 281
From: US
Originally Posted by Biggiesacks
You just fill up the master, open up a bleeder and gravity moves fluid from the higher reservoir out through the lower open bleeder. They say it's about 10 minutes per nipple.
ah that's how i "bleed" a new caliper i install anyway. once it starts coming out i put the motiv on though
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kon575
Lancer Tires, Wheels, Brakes & Suspension - Sponsored by The Tire Rack
7
Jul 6, 2011 09:01 AM
Bigl4201
Evo Tires / Wheels / Brakes / Suspension
15
Jan 27, 2011 10:10 PM
AngryEvo8
Evo Tires / Wheels / Brakes / Suspension
7
Jul 5, 2009 08:00 PM
LetsGo82nd
Evo Tires / Wheels / Brakes / Suspension
9
Feb 19, 2009 08:10 AM
truDriver
Evo How To Requests / Questions / Tips
6
Jul 3, 2007 06:15 AM




All times are GMT -7. The time now is 01:13 AM.