Leaking lockshield

Joined
1 Feb 2007
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Location
Ipswich
Country
United Kingdom
Hi

I've just reinstalled one of our radiators and as soon as I opened the lockshield the lockshield started to leak from the spindle/screw. I've tried to adjust the screw slightly in the hope is would stop but no luck.

It's a fancy Quinn straight lockshield with an inverted screw as the spindle! the leak is coming round the screw.

I want to avoid taking the rad off again and replacing the lockshield as it's a tall column rad so it's quite a pain to drain it etc.

I'm wondering if I could get away with draining the heating system (combi boiler) and undo the lockshield mechanism to replace the o-ring.

Or is there a simpler way?

I'm hoping it seals itself as it's only a small drip and we live in a hard water area but I think that is wishful thinking.

Thanks

Adam
 
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Where is the cap that covers it?

It as a seal in it, just replace the cap, when you have the lockshield in the required position.
 
I did put the cover back on but it still leaks.

The leak has slowed overnight so maybe the limes scale is enough to seal it
 
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The cap does not have a seal in it. I've got 2 of these lockshield valves and neither has a seal.

I've added an o-ring to see if that helps
 

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