This is the old site. Please use the new site.

 
05. Apr 2026 at 22:42
  
  Welcome, Guest. Please Login
 Omega Owners Forum
 
 
  Home Shop Help Search Members Login  
 

This is the old site. Please use the new site.

www.omegaowners.com/forum/index.php.

 
  Omega Owners Forum › Omega Help › Omega General Help › Pressure in the Expansion tank
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
Send Topic Print
Pressure in the Expansion tank (Read 482 times)
EXD
Newbie
*
Offline



Posts: 30

Drives: Opel Omega MV6 -95
Pressure in the Expansion tank
12. Feb 2011 at 22:02  
Hello

Is it normal that the water bouble's up when you lift the cap to the expansion tank, if the engine's hot and the engine is idling?
Its like some kind of pressure in the system?
Can it be air in the watersystem...?
Back to top
 
 
IP Logged
 
Andy B
Over Active Poster
*********
Offline



Posts: 21988
Bury Lancs
Gender: male

Drives: 1999 3.0 Elite auto/TDM
Re: Pressure in the Expansion tank
Reply #1 - 12. Feb 2011 at 22:06  
EXD wrote on 12. Feb 2011 at 22:02:
Hello

Is it normal that the water bouble's up when you lift the cap to the expansion tank, if the engine's hot and the engine is idling?
Its like some kind of pressure in the system?
...?


Yes it is, that's why the cap has a warning on it!  Wink
Back to top
 
 
IP Logged
 
henryd
Omega Baron
******
Offline



Posts: 2172
west cornwall
Gender: male

Drives: Merc E220 estate,previous ride 2.5 elite estate
Re: Pressure in the Expansion tank
Reply #2 - 12. Feb 2011 at 22:11  
pressure cap keeps cooling system at approx 15psi to raise the boiling point of the coolant,if you remove the cap when hot and engine running you get instant boil up as pressure is lost.
Back to top
 
other drives Fiat ulysses 2.0 16v
                    peugeot 406 hdi 110
                    Fiesta 1.3 encore yuk
swift utopia to slow the mig down a bit !!

v6 lock kit available locally
 
IP Logged
 
EXD
Newbie
*
Offline



Posts: 30

Drives: Opel Omega MV6 -95
Re: Pressure in the Expansion tank
Reply #3 - 12. Feb 2011 at 22:22  
OK, thanks you guys
Back to top
 
 
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print
‹ Previous Topic | Next Topic ›

This is the old site. Please use the new site.

  « Home ‹ Board Top of this page

Omega Owners Forum » Powered by YaBB 2.5 AE!
YaBB Forum Software © 2000-2010. All Rights Reserved.

Valid RSS Valid XHTML Valid CSS Powered by Perl Source Forge