I looked at a tidy Calibra 16v SE2 today, which I belive was the last car Vauxhall launced with the C20XE.
I did the usual checks, and when I examined the contents of the header tank, there was traces off white sludge around the 'float stick' thats attached to the lid. When I put my hand in it and tested the coolant, the water had a very greasy feel to it, especially noticable when I rubbed my fingers together. The water in the coolant tank had bits of white flake floating in it too.
At first i assumed the head was pourous, as there was no sludge in the head under the rocker cover that I could see, and no condenastion on the oil cap. Is this line of thinking right? I would normaly expect the sludge to be brown.
other than that the engine was stone cold when I got there, and it sounded great. The tappets need doing as they would on any XE with 114k on the clock.
how much does a recon S/H head normally cost?