Should there be pressure in coolant system?
04-14-08, 07:37 AM
#1
Senior Member
Thread Starter
Join Date: Sep 2006
Location: Tbilisi
Posts: 393
Likes: 0
Received 0 Likes
on
0 Posts
Should there be pressure in coolant system?
I'm curious, should there be pressure in coolant system when the engine is hot? i cant see bubles during cold start at all but when i start the car with cap removed, coolant level is rising slowly.
04-14-08, 07:42 AM
#2
Senior Member
Join Date: Dec 2004
Location: The Netherlands
Posts: 251
Likes: 0
Received 0 Likes
on
0 Posts
04-14-08, 08:08 AM
#4
Team Benjos Captain
iTrader: (2)
Join Date: Aug 2005
Location: Greenwood/Hartsville, SC.
Posts: 2,720
Likes: 0
Received 1 Like
on
1 Post
Haha, yes, that's normal. As the coolant gets hotter it expands. If you're not getting burnt off coolant in the exhaust or losing a lot of coolant on a regular basis, I wouldn't worry about the coolant system.
04-14-08, 10:38 AM
#5
Rotary Enthusiast
iTrader: (1)
Join Date: Dec 2007
Location: University Place, WA
Posts: 1,151
Likes: 0
Received 0 Likes
on
0 Posts
I believe that is why they put a 13 psi pressure cap on the cooling system. It is designed to have increased pressure as it heats up. The increased pressure causes a corresponding rise in the boiling point of the coolant. Since vapor doesn't transfer heat as well as liquid, you want your coolant to stay in it's liquid state. Hence the pressurized system.
Thread
Thread Starter
Forum
Replies
Last Post
