Water pump leaking what else should I change..

[vrmmmpshhh]

Had a very spirited run on the weekend only to find a tiny puddle of Coolant under the car and a few drops of coolant behind the crank pulley. While I'm changing the water pump is there anything else I should do while everything's apart? Car has 141,000ks.

[brendanstacey]

timing/accessory belt if havnt done them in a while?

[vrmmmpshhh]

timing belt was done at 100k and acc belt is only a month old.

[project.r.racing]

good example of why a water pump should be done when the timing belt is done. (if paying someone). if you are a home mechanic, then it doesn't really save you anything but time and effort.

if all the other stuff is not that old, then just do the pump.

[vrmmmpshhh]

I bought the car for my gf at the time when i was in japan so she had the work done while she was living in sydney. Im not sure if the water pump was changed with the timing belt, i don't think the water pump is dead just leaking but im going to change it for a new one anyway. could the 42mm ASI radiator put added strain on the pump causing it to leak prematurely?

[hks_kansei]

Probably not.

However..... if the radiator's been filled/topped up with tapwater rather than demineralised water, it could have left calcium and other sh*t in the pump's impellor which can jam it.

My water pump had most of the water galleries more than half closed off with calcium deposits. granted, it happily lasted 100,000km, and the only sign of a problem was that the overflow bottle was always filling up, overflowing, then sucking all the coolant back into the engine leaving the overflow bottle empty.

(if I had to guess I'd say that the pump was pressurising one side more than the other, causing the coolant to be pushed out. Once the car was off the pressure evens out and it sucks back what it can)