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MTA
SE1 - Steam enthusiast 1 star
SE1 - Steam enthusiast 1 star

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Joined: 09 Jul 2007
Posts: 774


Location: Yapton, West Sussex
PostPosted: Tue Feb 03, 2009 2:43 pm    Post subject: Reply with quote
steamyjim wrote:
Wilesco boiler fittings. 6mm


Good thing you posted that Jim. I presume you mean M6?
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steamyjim
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Joined: 12 Jun 2007
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PostPosted: Tue Feb 03, 2009 3:11 pm    Post subject: Reply with quote
MTA wrote:
steamyjim wrote:
Wilesco boiler fittings. 6mm


Good thing you posted that Jim. I presume you mean M6?


Yup, just realised there are 2 sized fittings. A smaller one, M5 I beleive Wink
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MTA
SE1 - Steam enthusiast 1 star
SE1 - Steam enthusiast 1 star

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Joined: 09 Jul 2007
Posts: 774


Location: Yapton, West Sussex
PostPosted: Tue Feb 03, 2009 3:14 pm    Post subject: Reply with quote
steamyjim wrote:
MTA wrote:
steamyjim wrote:
Wilesco boiler fittings. 6mm


Good thing you posted that Jim. I presume you mean M6?


Yup, just realised there are 2 sized fittings. A smaller one, M5 I beleive Wink


I was going to say! I had a scrap piece of rod that had been threaded to M6 and that tightened up in the threads before getting the entire length...
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silverfoxsteam
SE2 - steam enthusiast 2 star
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Joined: 20 Nov 2008
Posts: 1359


Location: Leeds, West Yorkshire
PostPosted: Tue Mar 31, 2009 2:41 pm    Post subject: Reply with quote
Info on Mamod level plugs thread sizes.

The most common is 3/16" BSF but the early SE's (pre 1963ish) have a 3/16" BSW thread (coarser).

BEWARE of mistaking 'stiffness' in the thread for scale build-up or corrosion, it ain't necessarily so!

The early N&B TE1's and SR1's also had BSW threads!
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