For those of with small leaks , I would recomend liquid sodium slilcate. (AKA Water Glass ) That is what is in all new cars antifreez. This helps to seal small leaks and have seen it used in older vehicle applications with success.
Vic
Quote:
Originally Posted by Ian NZ
Karl, - I now have a one litre plastic bottle with a plastic hose connection which when I remove the radiator cap I slip the hose over the overflow pipe squeeze the bottle until water comes out the overflow pipe. I do this now and again just to check that the valve is clear.
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