16-12-2013, 08:09 AM
This sounds like my 405 GTX 1.9 TD.
Bought it with a blown HG. Took head off, got it ported, pressure tested and skimmed.
New MLS headgasket on bolted down and started, just the same as before, building heaps of pressure and blowing water out of radcap.
Head off again, back to pressure test, still found to be fine. On again with new gasket, and building pressure again!
I never found the reason, but I more or less concluded it was the block that had to be cracked, even though I could not see any easy spottable cracks in it. Very annoying.
Bought it with a blown HG. Took head off, got it ported, pressure tested and skimmed.
New MLS headgasket on bolted down and started, just the same as before, building heaps of pressure and blowing water out of radcap.
Head off again, back to pressure test, still found to be fine. On again with new gasket, and building pressure again!
I never found the reason, but I more or less concluded it was the block that had to be cracked, even though I could not see any easy spottable cracks in it. Very annoying.
