Brakes won't bleed out all the way. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

jarend · 10-28-2009, 12:28 PM

Ok. So I recently put on some q45 calipers and rotors up front on my 91 hatchback and new oem rotors and pads in the rear. Me and a buddy have been trying to bleed the brakes now for almost a week. There were no holes anywhere in the brake lines. So we assumed it was the brake master cylinder. Got the new one in and when we tried to bleed all the air out again, after about 3 hours, brakes were just still real soft.. We've bled with the abs on and off seeeeeeeeeveral times. went out and bought a brake bleeder kit even. Just seein if anyones gone through this already. Any help would be great. Thanks.

kingxcore · 10-28-2009, 12:32 PM

are you bleeding the cylinder first?

also are you starting in the rear passenger and working back around?

jarend · 10-28-2009, 12:38 PM

yea, bled it out twice actually, haha, thought we might have messed up on that but nope. and yea, honestly probably gone through bleeding them at LEAST 10 times.

kingxcore · 10-28-2009, 12:49 PM

hmm are you sure there isnt a leak somewhere. if all the bleeder valves are closed, you have a new master, and there are no leaks in theory it shouldnt lose pressure.

jarend · 10-28-2009, 12:57 PM

arrrrrrrgh. thats what im saying. guess ill just give it another go today. someone told me they had a problem with their abs s13 as well. said they ended up puttin 2 gallons of brake fluid through it before it finally got all the air out and stiffened up.. must be a little pocket of air hiding. sigh. Thanks though King. Much appreciated.

Jared0934 · 10-28-2009, 07:35 PM

well, do you have 2 gallons of brake fluid? ;-) my 93 hatch bled the brakes out pretty clean, i had a air bubble in the lines glad I noticed it and fixed it quick >_<

wickedjester · 10-29-2009, 01:52 PM

Make shure the calipers are on the right sides. If the bleeders arnt on the top the air will stay trapped in the calipers.

projectRDM · 10-29-2009, 04:54 PM

Quote:

Originally Posted by jarend

arrrrrrrgh. thats what im saying. guess ill just give it another go today. someone told me they had a problem with their abs s13 as well. said they ended up puttin 2 gallons of brake fluid through it before it finally got all the air out and stiffened up.. must be a little pocket of air hiding. sigh. Thanks though King. Much appreciated.

Is your car an ABS model? You mention it here but didn't originally. If so, that's your problem.

Unplug the ABS actuator under the hood. Now bleed as you would normally.

10-28-2009, 12:28 PM	#1
jarend Leaky Injector Join Date: Aug 2009 Location: San Diego Posts: 68 Trader Rating: (2)	Brakes won't bleed out all the way. Ok. So I recently put on some q45 calipers and rotors up front on my 91 hatchback and new oem rotors and pads in the rear. Me and a buddy have been trying to bleed the brakes now for almost a week. There were no holes anywhere in the brake lines. So we assumed it was the brake master cylinder. Got the new one in and when we tried to bleed all the air out again, after about 3 hours, brakes were just still real soft.. We've bled with the abs on and off seeeeeeeeeveral times. went out and bought a brake bleeder kit even. Just seein if anyones gone through this already. Any help would be great. Thanks.

10-29-2009, 01:52 PM	#7
wickedjester Zilvia Junkie Join Date: Jan 2008 Location: escondido Age: 21 Posts: 500 Trader Rating: (4)	Make shure the calipers are on the right sides. If the bleeders arnt on the top the air will stay trapped in the calipers. __________________ ur car door says protect and serve but on the street its harass and disturb

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10-28-2009, 12:32 PM	#2
kingxcore BANNED Join Date: Oct 2009 Location: raleigh nc Age: 19 Posts: 18 Trader Rating: (0)	are you bleeding the cylinder first? also are you starting in the rear passenger and working back around?

10-28-2009, 12:38 PM	#3
jarend Leaky Injector Join Date: Aug 2009 Location: San Diego Posts: 68 Trader Rating: (2)	yea, bled it out twice actually, haha, thought we might have messed up on that but nope. and yea, honestly probably gone through bleeding them at LEAST 10 times.

10-28-2009, 12:49 PM	#4
kingxcore BANNED Join Date: Oct 2009 Location: raleigh nc Age: 19 Posts: 18 Trader Rating: (0)	hmm are you sure there isnt a leak somewhere. if all the bleeder valves are closed, you have a new master, and there are no leaks in theory it shouldnt lose pressure.

10-28-2009, 12:57 PM	#5
jarend Leaky Injector Join Date: Aug 2009 Location: San Diego Posts: 68 Trader Rating: (2)	arrrrrrrgh. thats what im saying. guess ill just give it another go today. someone told me they had a problem with their abs s13 as well. said they ended up puttin 2 gallons of brake fluid through it before it finally got all the air out and stiffened up.. must be a little pocket of air hiding. sigh. Thanks though King. Much appreciated.

10-28-2009, 07:35 PM	#6
Jared0934 Join Date: Feb 2009 Location: Okinawa, Japan Age: 20 Posts: 27 Trader Rating: (0)	well, do you have 2 gallons of brake fluid? ;-) my 93 hatch bled the brakes out pretty clean, i had a air bubble in the lines glad I noticed it and fixed it quick >_<