Class S15 no. 825 misbehaving itself on the approach to Goathland on Thursday 12th August 2010

[MiLLwallpaul231258]

The engines probably feeling home sick......send it home where it belongs.....The SOUTHERN REGION

[Cafferssss]

at least its downhill to the engine sheds!

[NJPurling]

If the clacks leak the boiler is not steam-tight, like a tyre with a leaky valve, but at eight times the pressure!

I think crud in the boiler feed-water or lime-scale can prevent them seating.

The old-fashioned remedy was for the fireman to belt them with a hammer, which stood a chance of dislodging whatever it was so they seated properly.

I do not know what Joe Public would make of the fireman doing that, hitting the locomotive with a hammer!