I have bypassed the oil cooler the water didn't rise as quick in the expansion tank I will update tomorrow when it has completely cooled down
Thanks everyone who've commented
Update. It seems it was the oil cooler the water doesn't back up no more in the tank so even after I flushed it they still must have been a blockage in the cooler what won't shift
Thanks everyone for your help
Last edited by racing green rover; 14th July 2019 at 10:34..
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