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Author Topic: Empire Sight Glass Fittings  (Read 297 times)

steamwhistle

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Empire Sight Glass Fittings
« on: August 12, 2021, 05:51:13 pm »
I have an Empire No. 90 engine with a broken sight glass fitting.  It was really stuck in the boiler and in an attempt to remove it during restoration, it broke  :( .  I eventually freed the pipe from the boiler.  Now I'm at a cross-road - repair or find an alternate fitting.

If I correctly identified the threads, I believe the threads into the boiler are 1/4-40?  Is this standard for Empires?

I'm tempted to attempt soldering it.  Any suggestions?

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Thanks,
Jeff
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steamwhistle

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Re: Empire Sight Glass Fittings
« Reply #1 on: August 13, 2021, 11:25:37 am »
It's not going to win any beauty contests, but it's soldered.  I'm hoping there are no leaks, but I suppose we'll have to wait until it's fired up.

I lost about a "turn" of pipe length when filing/fitting things together.  When I put things together, can I use something like loctite or gasoila to seal the threads?  When fully threaded into the boiler, the sight glass ends are no longer in the same plane unless I leave one turn on the soldered fitting.

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Jeff

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Dampfopa

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Re: Empire Sight Glass Fittings
« Reply #2 on: August 13, 2021, 02:21:11 pm »
Hello Jeff,

I always use liquid silicone to seal screw connections. It is heat-resistant and seals for a long time. It is important to degrease the threads carefully before.
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Cheers
Jürgen
Dealing with steam is one way of having fun in life.

St Paul Steam

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Re: Empire Sight Glass Fittings
« Reply #3 on: August 13, 2021, 08:37:17 pm »
Jeff , I think you did a stellar job of it 😊👍
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Bruce, St. Paul Indiana, USA
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