guys

is it normal for the header tank on the cooling system to bubble once the motor is switched off, there is no pressure in the system atall, its as if its boiling but the water temp isnt that high.

is this normal ? is it because of the water cooling pipe for the turbo ?

 

My 4x4 saph used to do it too m8

Even after leaving for fans to kick in and out it would still bubble

 

thanks bud appreciated, yep, I think it must be the water in the turbo cooling pipe thats still boiling, just worried me for a sec thats all, so I went to see a rally guy here and he said thats normal but just wanted other thoughts, cheers

 

When you switch off,the water no longer circulates so the water around the turbo cooling system boils up due to the turbo heat!!!!Totally normal.

 

thanks very much bud, appreciate your reassurance, especially as Ive got a near new engine JUST fitted

 

Ensure your running the correct 4x4 cooling system and not a lashed on 2wd system as that caused far too many problems.

Im refering to the route taken by the turbo water return to header tank.

 

ok thanks mate, its on my escort, ive got a sapphy 4x4 here though so il have a look and make a comparison cheers stu

 

The water does continue to circulate for some time after due to convection. Not at the same rate as when it's being pumped, but still..You can even hear it if you listen closely