09-05-13, 09:07 PM
(09-05-13, 08:52 PM)unfazed link Wrote: A bit of pitting on the shaft, but would not appear to be enough to cause the rattle you have. However the clearance on the impleller to casing is very small and the least bit of wear could cause a rattle as the impeller hits the casing especially under load, but there does not appear to be any scratch marks on the impeller.
Have you ridden the bike with fresh coolant, you may find the rattle is gone since the lower viscosity of the new coolant may not put the pump under as much pressure.
When you put it back together and if the rattle is still there use to screw driver trick to listen to the pump.
The bigest problem with the screwdriver trick is how to filter out the normal sounds from the abnormal sounds.
the biggest problem is reaching the throttle whilst bending down with a screw driver on the water pump :rollin
yea i ride every day at the moment, car is in a worse state of repair!
it did seem quieter today, but then it was raining and much colder than the last couple of days. its only a ten min ride to work so usually only just gets warmed up fully by the time i've arrived.