How do I know if my head gasket has gone. I suspect that my expansion tank is being pressurised by exhaust gases. The sealed edges seem to be bulging. The car never gets warm and i have noticed a little coolant loss. The oil seems fine no emulsion. Is there a simple test I can do?
cheers done this, does smell but not sure if it is just smell of old anti freeze. What will happen if i leave it? I also think the thermosat is shagged cos car never gets really warm unless stood in traffic.
better to use the cam locks, and change the thermostat, for sure it is knackered.
Also advisable to renew the cam variator.
Murphys law !! (if you do not, it will for sure break down in a month or so and you have to do a lot of work again !! (speaking from experience)
been quoted minmum of £500 to change head gasket, does this sound expensive?
Also the existing head gasket was new some 30K miles ago when some of the valves were replaced, any ideas why it would go so soon. The car has never been anywhere near warm let alone been cooked. Could the head be damaged?