Head gasket on its way out ??

[Cle]

Right i think my head gaskets on its way out, It bubbles when it gets reved but when idleing its fine and when you remove header cap theres very little pressure in it, Does this sound right ?

[Adam]

Any white smoke out the exhaust? Any oil/water mix? Any over heating? Losing water?



Sounds normal to me,Lol.

[Cle]

No white smoke, not oil in water, not losing water, not sure if its over heating gas my temp gauge doesnt work but engine seems to be pretty hot

[Adam]

Get the temp gauge working.



Sounds fine to me.

[Steve0011]

easy job, check thermostat is opening ok also cheap as chips to fit a new one

[mowgli]

if you are getting bubbling in the expn bottle, then your cap is probably in need of replacing. a car cooling system is designed to be under pressure, so water will boil at a higher temperature (something scientific proves this but i can't remember if it is boyles law or not.. its the same science that means a fire extinguisher gets cold when you let it off).. this is because a petrol engine runs normally at about 95degrees, and if the system was not pressured up, then it would already be starting to boil & bubble.