Hi there, if the leak is from the drain hole the seal's leaking and the pump should be replaced, if not pressure test the system to help locate the leak.
Just a wee bit of techno info on water pump design, happy reading.
Mark (mhpautos)
A water pump is capable of avoiding adverse influence of water leakage from a swirl chamber to a bearing. The water pump includes a pump housing, a rotary shaft supported by a bearing mounted on a boss portion of the pump housing, an impeller fixed on an end portion of the rotary shaft extending into a swirl chamber defined within the pump housing, and a mechanical seal disposed between the impeller and the bearing. The water pump further includes a seal ring disposed within a space defined between the mechanical seal and the bearing for dividing the space into a first and second vapor chambers with drain holes provided for respective first and second vapor chambers.
Monday, November 10th, 2008 AT 4:27 AM