Quote:
Originally Posted by dekhelia
This is normal, of course: the water pump is driven by the cambelt, so you'd expect its speed to be related to engine speed.
As someone else said, could be an airlock. How did you bleed the system after you'd put it all back together? There is a bleed nipple on the large pipe that runs atop the gearbox, 8mm nut if I remember right.
There is also the possibility that you have a leak somewhere - do you have to keep topping up?
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when coldish i bleed the system by taking top off header tank and revving and observe speed of coolant. is this okay to do? i have to top up when it throws out the coolant. defo see coolant bubbling out of header cap only after higher revs. then i have to top up. i is not huge amounts and i am not over filling as the line is clear to see in the bottom of header tank.