Water Pump weeping through the weep hole

Honda CRF 450 discussion forum:


Water Pump weeping through the weep hole

Water Pump weeping through the weep hole 
Ian Williams said 2010-04-17 23:38 
 
Can anyone help, i am loosing some coolant when i first start my bike through the weep hole in the water pump casing, this lessens once i am riding. I have read many posts on forums regarding this problem and heard everything from the seal through to the balancer shaft bearings. I do feel that there is a noise from the pump casing area but i am not loosing any water into the engine. I am thinking of changing the impeller shaft and seal, any thoughts.
Kind Regards
Ian 
 
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