FlyingPete
Well-Known Member
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- Coventry
So my 19J is showing the signs of an impending head gasket failure- excess pressure in the coolant after sitting overnight, along with an abnormally high coolant level in the expansion tank. I believe combustion gases are leaking into the system under load and collecting in the heater matrix, which is displacing coolant and so raising the apparent level in the tank.
I guess the head will be coming off to investigate/fix it fairly soon, but is it worth doing some other work on the head while I'm at it? Disassembly and valve grinding wouldn't be too much of a hassle to do. Is there anything significant to be gained from just a top-end rebuild?
I guess the head will be coming off to investigate/fix it fairly soon, but is it worth doing some other work on the head while I'm at it? Disassembly and valve grinding wouldn't be too much of a hassle to do. Is there anything significant to be gained from just a top-end rebuild?