Notices
Brakes & Suspension 350Z stoppers, coils, shocks/dampers

? for those who replaced brakes with OEM Brembos

Thread Tools
 
Search this Thread
 
Old 03-22-2008, 04:07 PM
  #1  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Question ? for those who replaced brakes with OEM Brembos

This afternoon I replaced my stock brakes with some OEM Brembos. After the swap, I bled them and everything felt fine. Pedal was good and hard. Once I start the engine though, the brake pedal feels a lot softer than before. It seems like it has a lot more travel before the normal resistance is felt.

Has anybody else who did the swap noticed this?

I'm wondering if it has something to do with different brake boosters between the Track and non-track cars.
Old 03-22-2008, 04:13 PM
  #2  
SuperBlack350z
Registered User
iTrader: (59)
 
SuperBlack350z's Avatar
 
Join Date: Feb 2007
Location: Raleigh, North Carolina
Posts: 8,517
Likes: 0
Received 4 Likes on 4 Posts
Default

this was how mine felt when i used the OEM non brembo master cylinder. Right away after i installed my brembo master cylinder that i obtained from the dealer, the feeling felt normal again and the pedal was short.

Even though other people told me they are the same master cylinder or whatever. Not sure what it was.
Old 03-22-2008, 04:13 PM
  #3  
terrasmak
Super Moderator
MY350Z.COM
Premier MemberSuper Moderator
iTrader: (8)
 
terrasmak's Avatar
 
Join Date: Jan 2007
Location: Sin City
Posts: 28,781
Received 2,333 Likes on 1,681 Posts
Default

You still have air in the system. Probably at the master cylinder. I would bleed the lines at the master, to do this you need someone to push in the pedal as you crack the line loose. BTW if you look it up , they have the same part numbers between master cylinders.

Last edited by terrasmak; 03-22-2008 at 04:23 PM.
Old 03-22-2008, 04:54 PM
  #4  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Default

Originally Posted by SuperBlack350z
this was how mine felt when i used the OEM non brembo master cylinder. Right away after i installed my brembo master cylinder that i obtained from the dealer, the feeling felt normal again and the pedal was short.

Even though other people told me they are the same master cylinder or whatever. Not sure what it was.
The master cylinders are the same but the brake boosters are different.
Old 03-22-2008, 04:55 PM
  #5  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Default

Originally Posted by terrasmak
You still have air in the system. Probably at the master cylinder. I would bleed the lines at the master, to do this you need someone to push in the pedal as you crack the line loose.
I don't see how I could have gotten air all the way back to the MC though. I bled almost a whole quart through the system on just the front brakes. The pedal is good and firm during the bleed.
Old 03-22-2008, 04:55 PM
  #6  
SpoilsofWar
Registered User
iTrader: (39)
 
SpoilsofWar's Avatar
 
Join Date: Jul 2006
Location: Way North, New York
Posts: 2,359
Likes: 0
Received 1 Like on 1 Post
Default

Took me a few rounds of bleeding to get my pedal firm when I installed my AP bbk. I broke down and bought a motive pressure bleeder, and it made the job cake, firm on the first try.

It was doing the same thing to me, firm when the car was off, but soft when engine was running. No idea why.
Old 03-22-2008, 05:15 PM
  #7  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Default

I know somebody with a power bleeder. I may have to recruit him to help with that. I'll wait till after I get the rears swapped out - that's going to be another adventure. I pounded on one of them but it did budge. I tried soaking the studs with WD 40 - we'll see tomorrow if that does any good.
Old 03-22-2008, 05:37 PM
  #8  
SpoilsofWar
Registered User
iTrader: (39)
 
SpoilsofWar's Avatar
 
Join Date: Jul 2006
Location: Way North, New York
Posts: 2,359
Likes: 0
Received 1 Like on 1 Post
Default

PB blaster is your friend, works much better then wd40. Spray them with that, give it a couple hours, then go at them.
Old 03-22-2008, 05:43 PM
  #9  
Ahsmo
Imakecopies
iTrader: (13)
 
Ahsmo's Avatar
 
Join Date: May 2004
Location: Charleston, SC
Posts: 2,330
Likes: 0
Received 0 Likes on 0 Posts
Default

I did initially. It was a pain! I paid an additional 20 dollars on top of my alignment for a shop to power bleed them. After that everything was great. Peace of mind is a great thing
Old 03-22-2008, 05:52 PM
  #10  
terrasmak
Super Moderator
MY350Z.COM
Premier MemberSuper Moderator
iTrader: (8)
 
terrasmak's Avatar
 
Join Date: Jan 2007
Location: Sin City
Posts: 28,781
Received 2,333 Likes on 1,681 Posts
Default

Originally Posted by DavesZ#3
I don't see how I could have gotten air all the way back to the MC though. I bled almost a whole quart through the system on just the front brakes. The pedal is good and firm during the bleed.
They like to trap air at that spot. Pressure bleed or cracking the lines loose will get it out.
Old 03-22-2008, 08:04 PM
  #11  
SuperBlack350z
Registered User
iTrader: (59)
 
SuperBlack350z's Avatar
 
Join Date: Feb 2007
Location: Raleigh, North Carolina
Posts: 8,517
Likes: 0
Received 4 Likes on 4 Posts
Default

Originally Posted by SpoilsofWar
PB blaster is your friend, works much better then wd40. Spray them with that, give it a couple hours, then go at them.
+1 Wd40 does nothing. PB blaster is much better. I haven't found any bolt that PB blaster won't open.
Old 03-22-2008, 08:13 PM
  #12  
ZU L8R
Viper Sellout
iTrader: (84)
 
ZU L8R's Avatar
 
Join Date: Aug 2003
Location: Orlando, Fl
Posts: 6,871
Likes: 0
Received 3 Likes on 2 Posts
Default

You did both bleeders on each caliper right?
Old 03-23-2008, 04:41 AM
  #13  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Default

Originally Posted by ZU L8R
You did both bleeders on each caliper right?
Yes, about three or four times on each.
Old 04-01-2008, 07:16 PM
  #14  
jgray
New Member
 
jgray's Avatar
 
Join Date: Aug 2004
Location: Colorado Springs, CO
Posts: 415
Likes: 0
Received 0 Likes on 0 Posts
Default

I have and 04 Base and installed a used set of OEM Brembos (from a G35) and new braided brake lines - the pedal is much softer than I would like. I bleed the system often, before and after track days. I've never used a power bleeder since I've read that they don't work well, but I'm willing to try. Another consideration is a master cylinder brace. Stillen makes such a brace, but I'm having difficulty justifying the $140 investment for such a relatively simple item. If I do get the brace, I'll post a review.

Joel
Old 04-02-2008, 02:32 AM
  #15  
dhwang80
Registered User
iTrader: (13)
 
dhwang80's Avatar
 
Join Date: Oct 2006
Location: richmond, ky
Posts: 593
Likes: 0
Received 0 Likes on 0 Posts
Default

looks like i need to order the brembo master cylinder to remedy this soft pedal issue.
Old 04-02-2008, 03:25 AM
  #16  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Default

No you don't. I pressure bled my brakes the past Friday and the pedal feel got significantly better. Drove the car all weekend in an autocross and the brakes worked fine considering that I haven't had time to bed them in.
Old 04-02-2008, 04:33 AM
  #17  
SOLO-350Z
'12 TL SH-AWD
iTrader: (26)
 
SOLO-350Z's Avatar
 
Join Date: Feb 2004
Location: Alamo
Posts: 6,348
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by DavesZ#3
Yes, about three or four times on each.

That isn't enough. I have had to do bleeds and it takes like 10 times to really get all the fluid through well.
Old 04-02-2008, 09:53 AM
  #18  
DavesZ#3
350Z-holic
Thread Starter
iTrader: (26)
 
DavesZ#3's Avatar
 
Join Date: Jul 2003
Location: Louisiana
Posts: 15,887
Likes: 0
Received 23 Likes on 18 Posts
Default

Originally Posted by SOLO-350Z
That isn't enough. I have had to do bleeds and it takes like 10 times to really get all the fluid through well.
I did as others recommended and got a pressure bleeder. That the device that forces brake fluid into the master cylinder under pressure. You go around to each brake and bleed them as normal without ever having to get in the car and touch the brake pedal. Works like a dream
Old 04-02-2008, 10:39 AM
  #19  
SOLO-350Z
'12 TL SH-AWD
iTrader: (26)
 
SOLO-350Z's Avatar
 
Join Date: Feb 2004
Location: Alamo
Posts: 6,348
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by DavesZ#3
I did as others recommended and got a pressure bleeder. That the device that forces brake fluid into the master cylinder under pressure. You go around to each brake and bleed them as normal without ever having to get in the car and touch the brake pedal. Works like a dream

Yea I really need to get one of those. I always have to get someone to do the brakes for me. :P

Where did you get one from and how much?
Old 04-02-2008, 01:05 PM
  #20  
dhwang80
Registered User
iTrader: (13)
 
dhwang80's Avatar
 
Join Date: Oct 2006
Location: richmond, ky
Posts: 593
Likes: 0
Received 0 Likes on 0 Posts
Default

do you run the risk of forcing air through the fluid with those?


Quick Reply: ? for those who replaced brakes with OEM Brembos



All times are GMT -8. The time now is 03:35 PM.