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[cam.in.head]

have you tried running it briefly with the aux belt removed just to confirm its not alternator,air con or power steering .or even the aux tensioner pulley

[Diamond Black Geezer]

Haven't, but happy to. Pulley regreased during strip down.
Definitely higher up though I'd say about where the thermostat is. Which is odd. But around the two front cylinders at any rate.
Had a mate suggest excessive lifter clearances may be causing it.

[cam.in.head]

its just that noises dont always originate from where they sound to be and at least you would eliminate any belt driven items then.
other possibility of course is cambelt pulley bearings .you mentioned a grating sound whereas lifters usually tick or have a tapping noise

[Nick W]

its just that noises dont always originate from where they sound to be and at least you would eliminate any belt driven items then.
other possibility of course is cambelt pulley bearings .you mentioned a grating sound whereas lifters usually tick or have a tapping noise

That.


A stethoscope would be useful. Unless you like random guessing

[Doctor Gollum]

Did you check the cambelt when you did the waterpump?

[Diamond Black Geezer]

Condition of belt itself no issue, no suggestion of cracking etc. Not hugely sure what would be visually amiss but the pulleys all seemed fine. Certainly no plastic or metal swarf or anything obvious.

Had a listening stick on it after a 20min drive. Rattle audible over 2krpm and definitely NS bank at the front. Quieter or more muffled soon as you go away from that area.

[Diamond Black Geezer]

PS caminhead haven't ignored you, will check if any difference without aux belt tomorrow when she gives my car back after she's finished work