Clio building up too much pressure

[Anonymous]

In the collant system..........whats the likely cause?

She has a Mk1 1.9 D!

Top the expansion tank up, then after a run upto temp, when I check it the tank is empty!
Unscrewing the cap releases masses of air, gurgling and bubbling then eventually the tank starts to fill up again!!

Water pump? thermostat?

ta

 

[RSTuning]

Head gasket by the sounds.

 

[Mark One]

indeed. Does sound headgasket related. Not building up excess temp on the gauge is it?

 

[Anonymous]

supposedly had the headgasket done last year!

 

[RSTuning]

Common for cracking the heads too on these i think so it could be that

 

[Anonymous]

Right i've just heard the guy looking at it has checked the Headgasket and that is fine! I dont know how he checked, guessing with pressure gauges!

Would testing with pressure gauges show up a cracked head?

 

[iimushroomzii]

I've got a head/whole engine available if its needed...

 

[Anonymous]

Thats handy to know, how much you wanting for it?

Not sure if its needed yet, i've not even had a look at her car myself yet, it went straight to her dad's friend for diagnosis!

New engine will be last option but i'll bare it in mind!

 

[iimushroomzii]

Nothing really, couple of quid in my back pocket and enough to cover postage/courier what ever..

 

[Anonymous]

Decent lad..........................i'll be in touch over the next couple of days

Is it a runner?

 

[Andyman]

Sounds like my old Rover.

Try bleeding the system first to make sure you havent got a air lock.

 

[powey]

Check for mayo on the oil cap?

 

[Anonymous]

No mayo for sure, I checked that recently!

Where are the bleed points on the 1.9d? Is it just the top of rad near battery?

 

[powey]

Is it using/loosing water

 

[Andyman]

Mine sounds pretty similer to yours and we put mine down to a hairline crack on the head on the exhaust port side thus blowing gases through the system. No mayo as no oil and water were mixing plus 2 tubs of K-seal was doing F all lol

IIRC (few years back now so might be slightly wrong) start the car up and the coolant would drain away and the temp gauge would rise. If you turned off the ignition and unscrewed the coolant cap it would bubble and gurgle and the water would return.

Worth trying to see if its a airlock but like the others have said, does sound like its the head and given the cars age you'd be best to call it quits and scrap it