well my mysterious water loss has persisted.
i did the big end bearings at the weekend, so the car got an oil and filter change. checked my filler cap today and there is a bit of white mayo on it, so i'm fearing the head gasket is leaking.
its off to the garage on friday for a pressure check and for them to do their diagnosis bit.
First thing to discount, there's not an engine oil cooler in the radiator is there?
Assuming the diagnose the worst and i need to change the headgasket, what's involved? i can do the job in about 5 hours on the isuzu engine in my land rover, but there looks to be a reasonable amount of stuff to take off.
I see milner do a gasket for £35, but from my experience with the isuzu engine i'll need at least a new exhaust manifold gasket to go with that so presumably would need to buy the whole engine kit at £80.
on the isuzu lump both times i've changed it have not been due to the gasket leaking. I assume i should be checking for some underlying problem which has caused the leak. I can't see much information on the internet about changing the head gasket on this engine (unlike the 4.5 petrol), so it appears to be not such a common problem.
i'll know for sure (hopefully) on friday, but i nthe mean time, i'd appreciate any input.
thanks
callum