by Derek Jones
Date Added: Saturday 18 February, 2006
This part is exactly what it says and works well. Our old one was squeaking and, once removed, the bearing felt tight so it was time to change. The new one was fitted during a cam belt change on our 1.8i Mk1 Gleneagles but leaked from the back face where it mounts on to the engine. As you only find this out after assembling everything else, I had to go and crying for a while in a darkened room before starting again. I removed it all again and clean up all the faces again before refitting with some sealant just for good measure. It's now all water tight and runs fine. All the joint faces were clean, square and strait so I must have got some debris between them the first time.
Just one thing. Make sure that you order the gasket that goes between the pump and the engine. You also need the gasket for the side of the pump where a hose manifole fits. I had to go to the local Mazda dealer for these once I had everything apart. (Thanks to Edwards at Kempsey)
One final thing. The tubular part of the thermostat housing is removed from the engine to allow the pump to be removed. An 'O' ring goes between this piece and the engine and it's a good idea to change this as well. I tried a slightly thicker 'O' ring from the Mazda dealer who didn't have the right one in stock and the housing cracked. (Ouch !! A £70 mistake and more tears.)
Perhaps a water pump kit could be offered with these gaskets included to avoid any such heartache ?