Intermittent leak on Water Pump - 3RZ 4x4

[Cheetah Drakie]

Good day Guys and Gals,

My 2.7 1999 Hilux has 585 000 on the odd, and has started using water. I don't see any leaks, and I haven't experienced any loss of power or anything untoward.

Last week I noticed a drip under the engine and traced it to the water pump. Apparently there is a little hole on the water pump, that tends to leak.

What i find interesting, is that it doesn't seem to drip constantly, some days it will, and others not. Is it maybe related to how far i drive before it tends to leak?

Best option to replace the water pump, or is there a sealant available?

Thanks in advance.

[Mud Dog]

My opinion is to replace the pump. Chances are that it's on it's way after that many kilos and it might just let you down on a trip or at a time when it's most inconvenient. I don't like using coolant sealing additives unless it's in a real emergency - they can restrict flow through the radiator and even the water galleries at the head gasket if those holes have constricted with corrosion / gunk over time.

[The Legend]

Agree wit Andy.Replace the waterpump

[Mr_B]

Coolant leaking from that little whole usually means the pump seal is on its way out. Agree, replace the pump.

[Cheetah Drakie]

Thanks guys, will do so ASAP

[Mars]

Yes. The seal on the waterpump is definitely going.