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Franco
Minor 1 - beginner
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Joined: 14 Jun 2009
Posts: 200
Location: Waterford, Ireland.
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 Posted: Wed Aug 19, 2009 11:54 pm Post subject: Further Doll entertainment! |
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I finally got to steam my big Doll tonight, and it ran quite smoothly if a little feebly as there were a few leaks. After stopping these I lit the burner again- imagine my surprise when as I flicked the flywheel over this happened.....
That's right, the cylinder fell off!!...it seems to have been attached by some sort of glue. 
Franco. |
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Nick
ME1 - more experienced
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Joined: 28 Apr 2008
Posts: 499
Location: Minnesota, USA
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| Posted: Thu Aug 20, 2009 3:23 am Post subject: |
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I had a similar problem with an engine, but I bought it that way (saved me about $200 too!  )
Have you fixed it yet? I'm guessing there's a tin cylinder cover that you've removed? 
I removed the parts before soldering, made sure everything was very clean and the holes were lined up:
And it worked!
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Spokesmann
Site Administrator
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Joined: 07 Jun 2007
Posts: 10389
Location: Plymouth, UK.
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| Posted: Thu Aug 20, 2009 5:46 am Post subject: |
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Bad news Franco, a thorough clean up and fresh fluxing of the joint will help the solder together well. Let us know how you do!
Interesting shot Nick to see the port arrangements there, not something that is seen that often.
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newts
SE2 - steam enthusiast 2 star
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Joined: 15 Jun 2007
Posts: 1265
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| Posted: Thu Aug 20, 2009 7:18 am Post subject: |
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Looks like Epoxy or similar was used
Should solder up OK, then we need a vid of it running 
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silverfoxsteam
SE2 - steam enthusiast 2 star
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Joined: 20 Nov 2008
Posts: 1359
Location: Leeds, West Yorkshire
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| Posted: Thu Aug 20, 2009 2:25 pm Post subject: |
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Oh B****r!
Good luck with the repair mate.
I had an SEL cylinder fall apart but that was my fault overdoing the heat whilst trying to re-solder the steam pipe. Went back together ok though!
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Stephen
Silver Fox Steam
Just soldering on ....! |
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silverfoxsteam
SE2 - steam enthusiast 2 star
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Joined: 20 Nov 2008
Posts: 1359
Location: Leeds, West Yorkshire
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| Posted: Thu Aug 20, 2009 2:34 pm Post subject: |
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Thinking more about this, you need to create more of a soldered 'fillet' rather than a joint as you don't want the solder running into the interface and potentially blocking the ports!
I'd clean it all really well to get a good close fit, clamp the two parts tightly and very carefully flux the outside where you want the fillet. A low melting point solder should allow you to do both sides independently (hopefully).
Again, good luck!
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Stephen
Silver Fox Steam
Just soldering on ....! |
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Mamod Collector
Moderator
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Joined: 12 Jun 2007
Posts: 4007
Location: Chesterfield Derbyshire
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| Posted: Thu Aug 20, 2009 4:25 pm Post subject: |
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Sorry to hear about your Doll Frank, at least now you can make a proper repair
Unlike the previous owner
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Mike
My personal website, with pics. 
www.mikes-steam-engines.co.uk ™
Mamod Loco
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Franco
Minor 1 - beginner
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Joined: 14 Jun 2009
Posts: 200
Location: Waterford, Ireland.
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| Posted: Thu Aug 20, 2009 6:38 pm Post subject: |
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Thanks for the encouragement Gents. Because there is a small bridge between the ports I plan to tin all of the contact area of the block, then clamp the parts together and apply some heat.
p.s. I had a closer look at the residue this morning...superglue!!!
Franco. |
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