Disco as sig. getting some whiney, whistley noises from it when accelerating, and on over-run, particularly under load. Lifted bonnet and had a looksee/listen and it appears to be the waterpump ... ish area.
Is it likely to be the waterpump as a whole or is there a replaceable bearing that might produce the same symptoms? I'm about to have a longer look, well, in an hour or so, when i intend taking the aux. drivebelt off and turning it by hand to see how hard (oo-er missus) it is. Can anyone give me a clue as to how hard or easy it should turn? I mean, like a normal nut freely rotating on a bolt or a nyloc nut, rotates by hand with a lot of force?
I'll also want to check the fan/viscous coupling. AIUI if the engines/water temp is warm/hot the fan should be hard to turn, when it's all cold it should turn easily ... Is this the right way round???
Cheers.