3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Bleeding Brakes using MityVac

Thread Tools
 
Search this Thread
 
Old 08-08-04, 01:37 PM
  #1  
Im a tall midget.
Thread Starter
iTrader: (28)
 
Juan's Avatar
 
Join Date: Feb 2001
Location: So Cal, USA
Posts: 3,131
Likes: 0
Received 6 Likes on 5 Posts
Question Bleeding Brakes using MityVac

I tried using a MityVac to bleed my brakes and I keep getting a million little bubbles instead of a steady flow of brake fluid into the container. The tube on the brake bleeder is tight. I bled that one caliper the old school way and fluid came out like it should. Is there a trick to using this?
Old 08-08-04, 01:42 PM
  #2  
Eats, Sleeps, Dreams Rotary

iTrader: (4)
 
BigIslandSevens's Avatar
 
Join Date: Apr 2003
Location: Denver, NC
Posts: 3,531
Likes: 0
Received 0 Likes on 0 Posts
it is most likley the fitting of the hose over the nipple. Even though it looks tight they still leak. Or it could be coming around the threads if you backed the nipple out far enough..(too far)

It usually takes a steady 20 inches of vaccum for me to pull fluid to the right rear caliper on the cars. Fronts are quicker. But if the old school way works better for you go with it. But personally my mightyvac does the same thing and it works just fine. Maybe i am just used to it though after all these years

Also you may want to check the tube itself to make sure there are no pinholes in it. I have had that happen before. It will always leak air in then.

Last edited by BigIslandSevens; 08-08-04 at 01:44 PM.
Old 08-08-04, 07:01 PM
  #3  
Slower Traffic Keep Right

iTrader: (5)
 
poss's Avatar
 
Join Date: Apr 2002
Location: Albuquerque, NM
Posts: 2,192
Received 2 Likes on 2 Posts
I had a problem with air leaking around the bleeder screw threads. Thread sealant took care of the problem.
Old 08-08-04, 08:24 PM
  #4  
Racing Rotary Since 1983

iTrader: (6)
 
Howard Coleman's Avatar
 
Join Date: Oct 2001
Location: Hiawassee, Georgia
Posts: 6,097
Received 519 Likes on 289 Posts
ISU is correct. before bleeding, remove the bleeder screw and coat the threads w wheel bearing grease. no bubbles. no sweat. rock hard pedal.

howard coleman
Old 08-08-04, 11:25 PM
  #5  
Senior Member

 
luizajeff's Avatar
 
Join Date: Oct 2003
Location: Lynnwood, WA
Posts: 452
Likes: 0
Received 0 Likes on 0 Posts
I did it old school and ran a hose from the screw into a container of brake fluid, a few pumps to get the air our, tighten the screw, and rock hard for me. I didn't turn the screw more than 1/2 to 3/4 turn either.
Old 08-09-04, 11:21 AM
  #6  
Moderator

iTrader: (7)
 
dgeesaman's Avatar
 
Join Date: May 2002
Location: Fort Kickass
Posts: 12,302
Received 16 Likes on 15 Posts
I had the same experience with the Mityvac. However, I bought speedbleeders instead - but I will try the wheel bearing grease trick on my Maxima. I tried using teflon tape, but that got sucked in and leaking, nearly getting into the system. At least the grease will dissipate.

Dave
Old 08-09-04, 03:19 PM
  #7  
Im a tall midget.
Thread Starter
iTrader: (28)
 
Juan's Avatar
 
Join Date: Feb 2001
Location: So Cal, USA
Posts: 3,131
Likes: 0
Received 6 Likes on 5 Posts
Talking

Originally Posted by howard coleman
ISU is correct. before bleeding, remove the bleeder screw and coat the threads w wheel bearing grease. no bubbles. no sweat. rock hard pedal.

howard coleman
Thanks! I'll give that a shot.
Old 08-09-04, 03:58 PM
  #8  
RX-7 Bad Ass

iTrader: (55)
 
DaleClark's Avatar
 
Join Date: Jan 2002
Location: Pensacola, FL
Posts: 15,399
Received 2,438 Likes on 1,509 Posts
I'm a big fan of Speedbleeders - crack the nipple, hook up the hose, and pump away at the brakes. Simple and easy, and they're dirt cheap too.

But, I have seen some instances where you weren't getting ANYWHERE until you hooked up a vacuum pump to get things movin'. Those are really fun!

Dale
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
The1Sun
1st Generation Specific (1979-1985)
7
09-18-15 07:13 PM
The1Sun
New Member RX-7 Technical
5
09-15-15 04:45 PM
Frisky Arab
2nd Generation Specific (1986-1992)
5
09-04-15 06:17 PM



Quick Reply: Bleeding Brakes using MityVac



All times are GMT -5. The time now is 07:21 AM.