Re: 4000 Ford Losing water from radiator

Posted by RAB on October 27, 2005 at 02:05:39 from (195.93.21.100):

In Reply to: 4000 Ford Losing water from radiator posted by Jeremy Culver on October 26, 2005 at 23:50:36:

Look in the header tank when the rad is full and check for bubbles coming from the combustion chamber into the cooling system. I am surprised, if you are losing about 4l/h, that you can"t either see the leak if it is external or get an hydraulic lock in a cylinder (or water in the oil).
Try a pressure test on the radiator and see if it is dropping rapidly.
Two questions: Are you filling the rad totally up to the filler neck when measuring this rate of loss? (the rad will initially lose water fast as that would be over-full),
and how did you tighten down the head when you refitted it (if you did, as your post is not a litle ambiguous on that point)?
Oh!, and a third - is the water pump leaking when running and up to temp?
Regards, RAB

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