On 27/03/2018 20:03, Harry Bloomfield wrote:
RJH wrote :
On 25/03/2018 17:38, RJH wrote:
Can anyone identify this noise? -

https://drive.google.com/open?id=1o_...flq4qiwX_jS6vh

It's a sort of high pitch metallic rattling, happens all the time,
and has started since I drained and refilled the closed combi system.


Ahem, found the cause - it's the casing of the pressure gauge
vibrating against its plastic cover. Think I'll just leave it for the
time being

Maybe push a bit of sponge between the two surfaces, to damp it.

Thanks - just tried. All the noise seems to be generated from within the
gauge. Wedging some rubber stuff in changes the pitch a little.

I'm inclined to let it fail and replace as needed (£40) in the hope that
nothing catastrophic happens meantime.

--
Cheers, Rob