Rennlist - Porsche Discussion Forums

Notices
Porsche Cup Cars
Sponsored by:
Race Cars For You

Air jacks leaking

   
Old 07-09-2018, 03:57 AM
  #1  
spiller
RL Community Team
Rennlist Member
Thread Starter
 
spiller's Avatar
 
Join Date: Dec 2012
Location: Adelaide, Australia
Posts: 2,520
Received 329 Likes on 200 Posts
Default Air jacks leaking
Seems to be my week for starting threads. I just went to raise my 996 cup using the air jacks to swap wheels and there is a hissing sound coming from the front jack which gets louder as I allow more nitrogen into the system through the regulator. I cannot hear any leaks from the lines but when I put my hand under under the car in the vicinity of the jacking piston, I can feel air (not high pressure). If I remove the wand from the car, the car slowly drops the ground on its own before releasing the pressure, meaning the system is not holding pressure.

I last used it about a month ago and it worked perfectly. The car has since been to a shop for replacement of 80% of it’s cooling hoses and a center radiator.

Any ideas? I was under the impression that the jacking system was maintenance free.
spiller is offline  
Reply Like
Old 07-09-2018, 04:40 AM
  #2  
Rickard 993 Turbo
Rennlist Member
 
Rickard 993 Turbo's Avatar
 
Join Date: Dec 2005
Location: Sweden/Stockholm
Posts: 1,843
Likes: 0
Received 2 Likes on 2 Posts
Default
No no no

If you do it right they should be sent for service each year
Rickard 993 Turbo is offline  
Reply Like
Old 07-09-2018, 06:04 AM
  #3  
spiller
RL Community Team
Rennlist Member
Thread Starter
 
spiller's Avatar
 
Join Date: Dec 2012
Location: Adelaide, Australia
Posts: 2,520
Received 329 Likes on 200 Posts
Default
Originally Posted by Rickard 993 Turbo
No no no

If you do it right they should be sent for service each year
I was only referencing what I read in the 996 cup technical manual.
spiller is offline  
Reply Like
Old 07-09-2018, 06:44 AM
  #4  
Rickard 993 Turbo
Rennlist Member
 
Rickard 993 Turbo's Avatar
 
Join Date: Dec 2005
Location: Sweden/Stockholm
Posts: 1,843
Likes: 0
Received 2 Likes on 2 Posts
Default

Manual says
Rickard 993 Turbo is offline  
Reply Like
Old 07-09-2018, 07:35 AM
  #5  
spiller
RL Community Team
Rennlist Member
Thread Starter
 
spiller's Avatar
 
Join Date: Dec 2012
Location: Adelaide, Australia
Posts: 2,520
Received 329 Likes on 200 Posts
Default
Originally Posted by Rickard 993 Turbo

Manual says
I’ll have to re-read the 996 manual as I don’t remember ever coming across that. Regardless, it appears I have an issue. What is involved in servicing them?
spiller is offline  
Reply Like
Old 07-09-2018, 10:32 AM
  #6  
Rickard 993 Turbo
Rennlist Member
 
Rickard 993 Turbo's Avatar
 
Join Date: Dec 2005
Location: Sweden/Stockholm
Posts: 1,843
Likes: 0
Received 2 Likes on 2 Posts
Default
For me here in sweden i have sent
mine to krontec or sobek for service. Maybe you have someone in USA that service them
Rickard 993 Turbo is offline  
Reply Like
Old 07-09-2018, 01:01 PM
  #7  
stujelly
Rennlist Member
 
stujelly's Avatar
 
Join Date: Dec 2009
Location: Bakersfield, CA
Posts: 2,854
Received 53 Likes on 41 Posts
Default
cup car solutions here in the states is the one that can service air jacks.

I had the front air jack in our brand new cayman clubsport fail in the 6 hour we ran at sebring

No reason no warning, car had about 100 miles on it and probably 5 cycles.

Just bought a new one from porsche at the track and installed.

The old one will go to jack at cup car solutions for service
stujelly is offline  
Reply Like

Trending Topics

Old 07-09-2018, 01:39 PM
  #8  
Viperbob1
Nordschleife Master
 
Viperbob1's Avatar
 
Join Date: May 2002
Location: Tampa, FL
Posts: 8,672
Likes: 0
Received 11 Likes on 8 Posts
Default
http://cupcarsolutions.com/ Sometimes they can be rebuilt instead of buying new. On the 996s though you will find that water accumulates internally in the rear 2 shocks causing corrosion ( leaving air wand interface up and washing car or raining will also let water in. Plus just water from the compressed air). Many times these will need to be replaced due to this.
Viperbob1 is offline  
Reply Like
Old 07-09-2018, 11:12 PM
  #9  
spiller
RL Community Team
Rennlist Member
Thread Starter
 
spiller's Avatar
 
Join Date: Dec 2012
Location: Adelaide, Australia
Posts: 2,520
Received 329 Likes on 200 Posts
Default
Thanks for the info guys. I'll take a look at cup car solutions. They don't have an email listed on the webpage, are they on rennlist?
spiller is offline  
Reply Like
Old 07-10-2018, 01:39 PM
  #10  
Viperbob1
Nordschleife Master
 
Viperbob1's Avatar
 
Join Date: May 2002
Location: Tampa, FL
Posts: 8,672
Likes: 0
Received 11 Likes on 8 Posts
Default
No they aren't on Rennlist.
Viperbob1 is offline  
Reply Like
Old 07-10-2018, 04:24 PM
  #11  
Ed@Demonspeed
Basic Sponsor
Rennlist
Site Sponsor
 
Ed@Demonspeed's Avatar
 
Join Date: Oct 2016
Posts: 1,289
Received 161 Likes on 118 Posts
Default
They are best reached by phone.

Thanks

Ed
__________________
https://demonspeed.com/
Engineered Race and Track Products for your Porsche

https://www.goodaero.com/
Race Designed Aerodynamics

https://racingtirewarmers.com/
Win more races with tire warmers

Great products for racers by racers

ed@demonspeed.com

Demon Speed Motorsports is a proud sponsor of PCA and the Club Racing Program









Ed@Demonspeed is offline  
Reply Like
Old 07-10-2018, 10:03 PM
  #12  
stujelly
Rennlist Member
 
stujelly's Avatar
 
Join Date: Dec 2009
Location: Bakersfield, CA
Posts: 2,854
Received 53 Likes on 41 Posts
Default
Ask for jack. No joke

If you need a new air jack, he can replace one cheaper than PMNA
stujelly is offline  
Reply Like
Old 07-11-2018, 09:03 AM
  #13  
AHRacing
Intermediate
 
AHRacing's Avatar
 
Join Date: Jan 2018
Location: Melbourne Australia
Posts: 36
Received 2 Likes on 2 Posts
Default
Originally Posted by spiller
Seems to be my week for starting threads. I just went to raise my 996 cup using the air jacks to swap wheels and there is a hissing sound coming from the front jack which gets louder as I allow more nitrogen into the system through the regulator. I cannot hear any leaks from the lines but when I put my hand under under the car in the vicinity of the jacking piston, I can feel air (not high pressure). If I remove the wand from the car, the car slowly drops the ground on its own before releasing the pressure, meaning the system is not holding pressure.

I last used it about a month ago and it worked perfectly. The car has since been to a shop for replacement of 80% of it’s cooling hoses and a center radiator.

Any ideas? I was under the impression that the jacking system was maintenance free.
Back when we were racing them in Carrera Cup i had Derek Van Zelm remake the jacking piston for me. I am not sure where he is now. I would imagine that someone in Adelaide like K&A should be able to service or make a part to fix the problem.
AHRacing is offline  
Reply Like
Old 07-13-2018, 05:38 AM
  #14  
spiller
RL Community Team
Rennlist Member
Thread Starter
 
spiller's Avatar
 
Join Date: Dec 2012
Location: Adelaide, Australia
Posts: 2,520
Received 329 Likes on 200 Posts
Default
Originally Posted by AHRacing
Back when we were racing them in Carrera Cup i had Derek Van Zelm remake the jacking piston for me. I am not sure where he is now. I would imagine that someone in Adelaide like K&A should be able to service or make a part to fix the problem.
Thanks Andy. I found a Sobek dealer in NSW who said he can do it but didn’t even think of K&A. I’ll give them a call
spiller is offline  
Reply Like
The following users liked this post:
Williamsf1 (04-24-2022)
Back to Subforum
Porsche Cup Cars
View Next Unread
OEM 991 GT3 Cup Decklid For Sale


Thread Tools
Search this Thread
Search this Thread:

Advanced Search

Advanced Search
Quick Reply: Air jacks leaking


Reply Closed Thread Share
Forum Jump

All times are GMT -3. The time now is 06:25 AM.