Rennlist - Porsche Discussion Forums

Notices
924/931/944/951/968 Forum Porsche 924, 924S, 931, 944, 944S, 944S2, 951, and 968 discussion, how-to guides, and technical help. (1976-1995)
Sponsored by:
Sponsored by:

Coolant System Capacity

Thread Tools
 
Search this Thread
 
Old 06-28-2010, 09:09 PM
  #16  
CPR
Race Director
 
CPR's Avatar
 
Join Date: Jul 2008
Location: Yorktown, Virginia
Posts: 11,218
Likes: 0
Received 3 Likes on 3 Posts
Default
I run distilled water and never have had an issue.

What would be I lubricating anyway?
CPR is offline  
Reply Like
Old 06-28-2010, 11:55 PM
  #17  
944Ross
Rennlist Member
 
944Ross's Avatar
 
Join Date: Dec 2008
Location: NM (ABQ)
Posts: 2,238
Likes: 0
Received 7 Likes on 7 Posts
Default
Originally Posted by JohnKoaWood
....
WTF is wrong with this place these days.... I will now NOT post ANY answers for anyone, no matter how idiotic the initial responses have been!

I will only lurk, and laugh, and feel smug in the knowledge that I know how to use google, or open a user manual, or open a FSM...
John, I hope you won't lay back, your advice always comes from a perspective of experience with many miles on 944's. Much more valuable than mere opinions.
944Ross is offline  
Reply Like
Old 07-05-2010, 01:13 PM
  #18  
Chris White
Addict
Rennlist Member
Rennlist Small
Business Sponsor
 
Chris White's Avatar
 
Join Date: Jul 2001
Location: Marietta, NY
Posts: 7,505
Likes: 0
Received 36 Likes on 27 Posts
Default
Originally Posted by CPR
I run distilled water and never have had an issue.

What would be I lubricating anyway?
Waterpump.
Chris White is offline  
Reply Like
Old 07-05-2010, 03:36 PM
  #19  
944Ross
Rennlist Member
 
944Ross's Avatar
 
Join Date: Dec 2008
Location: NM (ABQ)
Posts: 2,238
Likes: 0
Received 7 Likes on 7 Posts
Default
Originally Posted by Chris White
Waterpump.
Strictly speaking, the only thing it can lubricate is the sealing surfaces of the WP shaft seals. If water ever got to the actual WP bearings, the pump would be toast. Nowadays the seals are made of self-lubricating plastics (TFE-based) so I don't know how crucial having a lubricant in the water is. The 944 WP's I have torn apart used these type of seal surfaces.
944Ross is offline  
Reply Like
Old 07-05-2010, 04:33 PM
  #20  
Chris White
Addict
Rennlist Member
Rennlist Small
Business Sponsor
 
Chris White's Avatar
 
Join Date: Jul 2001
Location: Marietta, NY
Posts: 7,505
Likes: 0
Received 36 Likes on 27 Posts
Default
Originally Posted by 944Ross
Strictly speaking, the only thing it can lubricate is the sealing surfaces of the WP shaft seals. If water ever got to the actual WP bearings, the pump would be toast. Nowadays the seals are made of self-lubricating plastics (TFE-based) so I don't know how crucial having a lubricant in the water is. The 944 WP's I have torn apart used these type of seal surfaces.
Yes, and if you want your sealing surfaces to continue to seal a little lubrication is a nice thing. Remember that the coolant (or just plain water) is under pressure and will get to the start of the sealing surface. As that corrodes and wears the water will get a little further in, slowly but surely it will get past the seal as the sealing surface wears. No lubrication makes the wear happen faster.
Chris White is offline  
Reply Like
Tags
Back to Subforum
924/931/944/951/968 Forum
View Next Unread
What did I do wrong? - TB/BB/WP Change




Advanced Search
Quick Reply: Coolant System Capacity


Reply Closed Thread Share
Forum Jump

All times are GMT -3. The time now is 05:17 PM.