I recently did up the engine in our p38 4.6L petrol 2002, got head cylinder heads redone, valves ground, timing chain, new gaskets (cylinder head, Valley gasket, water pump, sump etc) , new pipes, radiator and thermostat, finished the work yesterday and bled the air out by taking off small pipe to expansion tank but there's not a great flow. But once the engine is running for 5 -7 minutes it starts bubbling the coolant out the expansion tank it is fairly hot but the heater needle on dash hasn't passed the middle. Have I missed something or plumbed it wrong? Thanks
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