[modeleng] Re: Boiler blues
- From: "Peter J. Cathcart" <peter.cathcart@xxxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Mon, 12 Sep 2005 13:22:18 +0100
Barrie
I'm sure conventional wisdom says leave well alone. The depth is pretty
minimal but the potential damage pretty catastrophic if you get it wrong.
If you look in the tubes on any operational loco you will see very similar.
This is certainly true at our club. Treat it like paint - it protects the
surface of the flues when cleaning conventionally.
Peter Cathcart
----- Original Message -----
From: "Barrie Purslow" <bpduo@xxxxxxxxxxxxx>
To: "Model Engineering List" <modeleng@xxxxxxxxxxxxx>
Sent: Monday, September 12, 2005 12:20 PM
Subject: [modeleng] Boiler blues
I am restoring a 5" Duchess the boiler of which is in generally good
condition. However the flue tubes, which are about 15/16 ins. I.D., are
coated internally with a layer of hard, black carbon. I have given it the
usual flue brush treatment which produced clouds of black dust but a hard
layer about 1/64 ins. thick remains.
I have tried fitting the flue brush into an electric drill and giving the
tubes a few minutes of rotary action to little effect. I am wary about
trying anything more aggressive as I have heard quotes of over £2000 for a
replacement boiler.
Any ideas anyone?
Barrie Purslow
Warrington UK
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