ZZR600D Water Pump

[Omega]

Hi guys,

I've been losing water from my bike slowly but can't see any obvious leaks anywhere. I'm half expecting it to be the head gasket but want to eliminate the cheaper options first so have taken the water pump out. In the Haynes manual it says there should be no play in the fins if you try to wiggle them about. When I've tried it they do move a couple of millimetres each way. The oil isn't all milky but does have little bits of creamy colour and the coolant water came out a dirty brown when I drained it. Is it likely that water would be passing through the water pump into the oil and vice versa?

I'm also wondering if maybe when I've over filled the coolant reservoir this could have caused a problem.

Any ideas of other things I should check?

[Kickstart]

Hi

Couple of mm does sounds rather a lot of play for a water pump. I presume that there is a pair of bearings and a couple of seals. With that much play it wouldn't surprise me if the seals couldn't work.

All the best

Keith
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[Omega]

Thanks Keith

I'll see if I can get a replacement from somewhere and give it a go.