Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Forums > Porsche Forums > Porsche 911 Technical Forum


Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
VMAX1's Avatar
 
Join Date: Sep 2005
Location: Georgia
Posts: 246
Garage
87 carrera- brake bleeding??

Is it possible to bleed the system without a pressured bleeder? I has used almost 2 quarts of fluid, using the family member style of bleeding. Pump up the brakes, some pressure about half pedal, open the rear cal. and the pedal stays, open the front cal. and the pedal goes to the floor? Is there a way to bleed the MC? Car has been sitting for 8 months and the system was drained. Any help appreciated...

Old 10-10-2005, 10:35 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
MBruns for President
 
JeremyD's Avatar
 
Join Date: Jun 2001
Location: St. Pete, FL
Posts: 15,007
Garage
May have a bad master cylinder. Sometimes pumping them can extend the seal and bang - you have air in the system.

Have you replaced hoses? Have you checked all the calipers for leaking?It's bad to drain a system and leave empty - easy to intrioduce corrosion.
__________________
Current Whip: - 2003 996 Twin Turbo - 39K miles - Lapis Blue/Grey
Past: 1974 IROC (3.6) , 1987 Cabriolet (3.4) , 1990 C2 Targa, 1989 S2
Old 10-10-2005, 10:47 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
Registered User
 
VMAX1's Avatar
 
Join Date: Sep 2005
Location: Georgia
Posts: 246
Garage
why would the pedal hold when I bleed the back? Fluid comes out strong. When I bleed the front the pedal will go to the floor. I have about half pedal.. Nice car. Looks like mine except the steering wheel is switched.
Old 10-10-2005, 12:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
Registered User
 
911mot's Avatar
 
Join Date: Sep 2004
Location: Watford UK
Posts: 828
Garage
Are you saying that when you open the rear bleed nipple and press the pedal, nothing happens. Pedal stays firm and no fluid comes out whichever side you try to bleed?
__________________
1984 3.2 Carrera

Impact Bumpers on track: http://www.youtube.com/watch?v=C4qbFNkdD2o
Old 10-10-2005, 01:16 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #4 (permalink)
Registered User
 
911mot's Avatar
 
Join Date: Sep 2004
Location: Watford UK
Posts: 828
Garage
Re-reading your first post it sound like youre not doing it quite right. Try this method:
Start from the caliper furthest away from the master cylinder
Top up reservoir.
Open bleed nipple on caliper.
Press pedal down as far as it will go and hold it there.
Close bleed nipple.
Release pedal.
Open nipple.
Press pedal down as far as it will go and hold it.
Close nipple.
Release pedal
..continue until you get a steady stream of fluid from the nipple as the pedal is pressed.
Keep a third eye on the fluid level in the reservoir.
If you can't get fluid pumping out master could be shot.

Alternatively If you have a clear plastic bottle and a length of tubing and don't want to make a mess you can bleed them this way:
Fit tubing over nipple, with the other end submersed in a small amount of new fluid in the bottle. Open the nipple and pump pedal until bubbles stop coming out. Close nipple and move onto next caliper.
Good luck
__________________
1984 3.2 Carrera

Impact Bumpers on track: http://www.youtube.com/watch?v=C4qbFNkdD2o
Old 10-10-2005, 01:32 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #5 (permalink)
Back in the saddle again
 
masraum's Avatar
 
Join Date: Oct 2001
Location: Houston, TX
Posts: 36,555
you should get fluid from the nipple if someone is pressing the pedal, if you don't then something is wrong in the system. The '87 should bleed the same as any other pre ABS type car.
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa SOLD 2004 - gone but not forgotten
Old 10-10-2005, 02:38 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #6 (permalink)
 
Registered
 
creaturecat's Avatar
 
Join Date: Mar 2004
Location: Vancouver bc
Posts: 4,377
gravity bleeding has worked well for me.
Old 10-10-2005, 02:41 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #7 (permalink)
Registered User
 
VMAX1's Avatar
 
Join Date: Sep 2005
Location: Georgia
Posts: 246
Garage
should I not pump the brakes to get pressure then open the valve? Open the valve then press brake down? Pump brake pedal then open back caliper, good stream of fluid-pedal stays up about half. Pump pedal open the front and pedal goes to floor?
Old 10-10-2005, 03:11 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)
Moderator
 
Bill Verburg's Avatar
 
Join Date: Dec 2000
Posts: 24,293
Garage
Problem w/ pumping the brakes is that the seals are pushed beyond their usual range, damage can easily result.
__________________
Bill Verburg
'76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone)
| Pelican Home |Rennlist Wheels |Rennlist Brakes |
Old 10-10-2005, 03:17 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #9 (permalink)
Registered User
 
911mot's Avatar
 
Join Date: Sep 2004
Location: Watford UK
Posts: 828
Garage
Quote:
Originally posted by VMAX1
should I not pump the brakes to get pressure then open the valve? Open the valve then press brake down? Pump brake pedal then open back caliper, good stream of fluid-pedal stays up about half. Pump pedal open the front and pedal goes to floor?
That sounds normal and it's due to the split circuit braking system.
What's the pedal travel like in normal use?
__________________
1984 3.2 Carrera

Impact Bumpers on track: http://www.youtube.com/watch?v=C4qbFNkdD2o

Last edited by 911mot; 10-10-2005 at 03:22 PM..
Old 10-10-2005, 03:20 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #10 (permalink)
Registered User
 
VMAX1's Avatar
 
Join Date: Sep 2005
Location: Georgia
Posts: 246
Garage
brake bleeding

half pedal is all I can get.
Old 10-10-2005, 03:57 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #11 (permalink)
Registered User
 
VMAX1's Avatar
 
Join Date: Sep 2005
Location: Georgia
Posts: 246
Garage
Don't really know about normal use-have'nt drove it
Old 10-10-2005, 03:58 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)
 
Moderator
 
Don Plumley's Avatar
 
Join Date: Jun 2001
Location: Geyserville, CA
Posts: 6,920
Garage
Yes, you can bleed a Carerra brake system without a pressure bleeder. It is more convenient, but not a requirement.

However, as Bill pointed out, the downside is large - excess pedal travel may damage internal seals. Not sure how much rebuilding an MC costs, but a great pressure bleeder (Motive) is only about $45.

So in deference to 911MOT, I respectfully disagree with his instruction to "Press pedal down as far as it will go and hold it there"

As it seems you are in a RHD car, the order would be LR, RR, LF, RF.

But something smells like a problem in your MC.

Good Luck!

Don
__________________
Don Plumley
M235i
memories: 87 911, 96 993, 13 Cayenne
Old 10-10-2005, 05:42 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #13 (permalink)
MBruns for President
 
JeremyD's Avatar
 
Join Date: Jun 2001
Location: St. Pete, FL
Posts: 15,007
Garage
On any 911 it would be passenger side rear, driver's side rear, passenger front, then driver's front.
__________________
Current Whip: - 2003 996 Twin Turbo - 39K miles - Lapis Blue/Grey
Past: 1974 IROC (3.6) , 1987 Cabriolet (3.4) , 1990 C2 Targa, 1989 S2
Old 10-10-2005, 07:02 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #14 (permalink)
Registered User
 
Join Date: Oct 2003
Location: UK, Cheltenham
Posts: 358
I'd go with the pressure bleeder.

Extending the pedal travel to bleed manually on my 88 without a pressure bleeder meant I had to replace the master cyclinder.

The pressure bleeder is cheaper and makes the job a doddle.
__________________
"Racing is Life. Anything that happens before, or after, is just waiting"

1988 Carrera 3.2 Sport Coupe - my mistress
2009 BMW E60 saloon - the work horse
2012 BMW F11 touring - the dog bus!
Old 10-11-2005, 11:47 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #15 (permalink)
Registered User
 
Guavanecta's Avatar
 
Join Date: Dec 2003
Location: Edgewater, NJ
Posts: 362
Two words: SPEED BLEEDERS.

Makes this a 15 minute job.

__________________
Ted
94 Street Coupe
88 Track Coupe
76 Honda CB750F SuperSport
Old 10-12-2005, 06:44 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #16 (permalink)
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 07:30 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2020 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.