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Have you checked the waterpump is properly working and intact?brand new vauxhall water pump with new gasket and new bolts, tested while hoses were off and it kicked out loads of water so yep thats working fine.
Iirc its almost impossible for oil/coolant to mix due to H/G failure on a v6.no smoke at all from exhaust although there is a smell , not a rich running smell.
If you`re still getting sludge in the coolant bottle it`s either more flushing or the replacement oil cooler is failing, and just because the rad has been subject to some flushings doesn`t necessarily mean it hasn`t still got a blockagei`ll give it some more flushing, the oil cooler was brand new part from vauxhall and i was lead to believe they are now stainless steel to stop the corrosion, my reason behind the head gasket failure is the fact the engine seized because it was stood for so long and the water that had collected internaly.
hmmm, may or may not be knackered....rad is fine, its overheating because of the sludge, the fans kick in fine, before it took it for MOT i had it ticking over for nearly a hour and it was ok, 5 mile drive over was ok it just when he had it reving for the test the prob came, i`m hoping when i take the heads the shop will advise me on the skimming
Id be looking at the rad 1st mind, that will be knackered and could sort the problem.
I wouldnt skim unless you have to, even then I'd be tempted for 2nd hand heads rather than skim. shouldnt need doing.
ive used a unipart stat cost £11.50 inc vat and gasket seal,still working fine after a month,and fitting another at the weekend for eatmydustby eck thats cheap,
