Notices
997 GT2/GT3 Forum 2005-2012
Sponsored by:
Sponsored by: Porsche North Houston

Brake Pedal Went soft

Thread Tools
 
Search this Thread
 
Old 03-18-2012, 05:51 AM
  #16  
BBMGT3
Addict
Lifetime Rennlist
Member
 
BBMGT3's Avatar
 
Join Date: Mar 2011
Posts: 1,233
Received 4 Likes on 3 Posts
Default

Originally Posted by taffin
just got a quote from the local race shop.

they quoted me on PRF660, which form a quick web search reveals it as AP Racing which makes sense as they sell AP stuff.

Is it ok to use this? I have read certain fluid damage the seals on the GT3??
I am using it. Its fine so far. Not sure about the seals - I am running SS lines so wouldn't know. My pedal started a bit soft but now has gotten a lot harder. Not really sure.
Old 03-18-2012, 07:10 AM
  #17  
taffin
Instructor
Thread Starter
 
taffin's Avatar
 
Join Date: Dec 2009
Location: South Africa
Posts: 120
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by bmardini
I am using it. Its fine so far. Not sure about the seals - I am running SS lines so wouldn't know. My pedal started a bit soft but now has gotten a lot harder. Not really sure.
going to MSW this week
Old 03-18-2012, 09:46 AM
  #18  
scott40
Rennlist Member
 
scott40's Avatar
 
Join Date: Oct 2009
Location: OH
Posts: 1,924
Received 99 Likes on 50 Posts
Default

Originally Posted by Alan C.
If you use a Motiv be sure that you keep track of how much fluid is in the brake reservoir. If not you may introduce air into the system and it will then be a pain to get it out. Some people put fluid into the Motive tank and some just fill the brake reservoir to the top and pressurize with the Motiv.

Something that I found useful is to use a turkey baster to extract the current fluid in the brake reservoir to the minimum fluid level mark on the reservoir and discard it. I then extract the remainder into the bottle I use for catching the fluid when I flush. Once that fluid is in the bottle I draw a line around the fluid level. I then fill the brake reservoir to the top and attach the Motiv empty. When the drain bottle hits the marked line I stop and refill the brake reservoir. It should be nearly impossible to ever introduce air into your system following this procedure. When you stop there will be the amount of fluid from the min line to the top of the reservoir in the brake reservoir.

Sorry if this is a bit wordy.
Alan
Do you need to add more to the reservoir after that? What order do you use on the calipers?
Old 03-18-2012, 11:27 AM
  #19  
NorthVan
Three Wheelin'
 
NorthVan's Avatar
 
Join Date: Jul 2006
Location: North Vancouver, Canada
Posts: 1,771
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by scott40
Alan
Do you need to add more to the reservoir after that? What order do you use on the calipers?
I just add about 1.25 litres of new fluid to the Motiv, then I push through about .25 litres to each corner. I have a used juice container that has been marked of at .25 litres, .5, .75, and 1. I start with he passengers rear, hen drivers rear, passenger front and then driver front.



Quick Reply: Brake Pedal Went soft



All times are GMT -3. The time now is 07:27 PM.