Sandman
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Bowman M167After the success of my last two efforts I've decided that my next project will be my Bowman M167.
I plan on keeping the home made chimney as it's not too bad looking. (Do you think that is a mistake??)
I'll post a couple of pics as a reminder.
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Mamodman123
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Unless you can get one made or get one from somewhere i'd keep the chimney SM, pitty its not made from brass  . Unless you can send it off and get it brass plated?
looks like a ncie project for you SM 
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Steve_S
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Well, it should be a doddle after the 140! 
It looks like it just needs a good polish really. It would be nice to have a brass chimney, but the copper one will look pretty good. I've often wondered how to make neat bell ends on tubing, there must be a knack to it. Can anyone tell us the secret?
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Sandman
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| Steve_S wrote: | Well, it should be a doddle after the 140!
It looks like it just needs a good polish really. It would be nice to have a brass chimney, but the copper one will look pretty good. I've often wondered how to make neat bell ends on tubing, there must be a knack to it. Can anyone tell us the secret? |
I think I know just the man.
Wallace 
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Mamodman123
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I think you heat it up and knock it round something dome shaped. Similar to a handle on a broom  something like that.
The brass must be thin though! otherwise it's not going to bend easily enough
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Steve_S
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Hmm. Probably needs a bit of experimentation!
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Mamodman123
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| Steve_S wrote: | | Hmm. Probably needs a bit of experimentation! |
Well yes Steve, I've not really got a clue myself, but that is how I was told it was done.
I quite fancy making a chimney for mine, obviosuly i'll need to know how to first
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Steve_S
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| Mamodman123 wrote: | | ....obviosuly i'll need to know how to first |
Yes, sounds like its a trick we need to learn!
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Mamodman123
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| Steve_S wrote: | | Mamodman123 wrote: | | ....obviosuly i'll need to know how to first |
Yes, sounds like its a trick we need to learn! |
Well, i'm sure someone out there will know how to make it!. Wallace's brother made a steam engine from scratch so he's my bet
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Steve_S
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| Mamodman123 wrote: | | ...Wallace's brother made a steam engine from scratch so he's my bet |
Yes, he could probably do it with a penknife!
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Mamodman123
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| Steve_S wrote: | | Mamodman123 wrote: | | ...Wallace's brother made a steam engine from scratch so he's my bet |
Yes, he could probably do it with a penknife! |
He probably could! I believe he made a whistle from an electric lathe drill. that looked very nice indeed!
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SPOKESMAN
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It just needs a 'wash and brush up' that one SM, shame about the copper chimney - but at least its the right shape and is well made, it doesnot detract too much at all.
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Wallace
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| Mamodman123 wrote: | I think you heat it up and knock it round something dome shaped. Similar to a handle on a broom something like that.
The brass must be thin though! otherwise it's not going to bend easily enough |
For the Chimney? That was about it.
From memory he used a flaring tool (he's a plumber, so they use them) to get it started, then heated it and used the broom handle for smoother edges and more flaring.
This is on his homemade engine BTW.
Sorry, I don't have pics handy for here but if you check out my Website you will see the pic in "other engines" that shows the chimney just after he finished engine. Just a straight bit of brass tube with a ring around the top.
He later added the flared bit on top, the ring covers the join, and the top little bit is flared.
Under engine restoration is his Bing engine, which he made a chimney for.
It again, has a flared top and bottom which he made using the same method.
Just a hint, he used brass towel railing (from a bathroom). If you can get hold of some, it'd be worth experimenting with, and making a one piece chimney. His are only 2 piece cos of a afterthought to add it on for the homemade engine.
Probably try a building recyclers place for 2nd hand railing. Even experiment with some copper pipe first. Also, it wasn't done with oxy, but just a normal butane torch.
I think your engine looks great SM
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Steve_S
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Thats good information Wallace, thanks. I'll have a go.
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Sandman
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Thanks Wallace.
I may try something later, once I get more confidence and get through more of the jobs I have waiting.
I have the engine fully stripped and the relevant parts now undergoing the Nitromors treatment. Anyone who works with Bowmans knows just how tough the laquer is to shift. The Nitromors option really is the only viable way. (Use with extreme care. Nasty stuff.)
Everything seems fine and as it's a simple little engine ,I should have it finished soon. (Famous last words.)
Well, back to the grind.
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Mamodman123
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| Sandman wrote: | Thanks Wallace.
I may try something later, once I get more confidence and get through more of the jobs I have waiting.
I have the engine fully stripped and the relevant parts now undergoing the Nitromors treatment. Anyone who works with Bowmans knows just how tough the laquer is to shift. The Nitromors option really is the only viable way. (Use with extreme care. Nasty stuff.)
Everything seems fine and as it's a simple little engine ,I should have it finished soon. (Famous last words.)
Well, back to the grind. |
Sounds like your cracking on nicely Sandman!
That Nitromors stuff is very strong but good stuff!!! stripped the paint off that SEL in seconds!. I know how hard laquer is to shift too!
Will will eventually remove it through polishing, but it all depends on whether you have the time and energy
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Sandman
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Been busy again today and got the little engine looking a lot better. This is what I started with
The job was pretty routine with no snags. I did not pay any great attention to the chimney as I'm not sure about it yet. This little engine has been well used as it's had the most crud ever I've come up against under the boiler.
The thing I did observe was some discolouring of the brass in small areas which seemed to be integrated with the metal and would not polish out. (A kind of pink colour)
So here it is. The latest in the Bowman saga.
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Mamodman123
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Bloody good job SM 
I agree with you about the chimney, it seemed to blend in a bit better when the boiler was dirty! I would definately be looking for someone to knock one up, maybe someone on here can help you?
Ive found that the pinky colour could be a chemical of some sort reacting with the polish, maybe the nitro mors? Ive also found heat to turn boilers pinky, like from a blow torch.
Very nice engine SM! I think you stole that one aswell going to fire it?
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Sandman
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Yes MM. I'm going to fire them all.
I've really enjoyed the past few days beavering away in my little workshop. I've done more in three days than I've done for months.
Only one to do now and I'm up to date with my Bowmans.
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Mamodman123
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| Sandman wrote: | Yes MM. I'm going to fire them all.
I've really enjoyed the past few days beavering away in my little workshop. I've done more in three days than I've done for months.
Only one to do now and I'm up to date with my Bowmans. |
Whic one is left now then SM?
Maybe you can get a collective picture?
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Sandman
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| Mamodman123 wrote: | | Sandman wrote: | Yes MM. I'm going to fire them all.
I've really enjoyed the past few days beavering away in my little workshop. I've done more in three days than I've done for months.
Only one to do now and I'm up to date with my Bowmans. |
Whic one is left now then SM?
Maybe you can get a collective picture? |
The big beast MM. The M135 is next.
I'm looking forward to that.
Then it's a family pic .
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Steve_S
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It looks very good SM.... you've certainly been busy! Its come up a treat. The contrast between the copper and brass is more obvious now though. What is the diameter of the chimney? I wonder if its close to a standard brass tubing size available nowadays. I think that the exhaust pipe extension piece which leads to the chimney isn't original either. I think it should be a bit of loose brass tubing that slides over the end of the copper pipe that comes from the engine block, and the other end pokes through a hole in the side of the chimney. That seems to be the usual Bowman arrangement. Anyway, its a beautiful engine, and a credit to you! Whats your next project?
edit: Ah! M135!
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Mamodman123
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Wasn't there an option for a chimney? Maybe it never came with one?
Got a pic of the beast SM?
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Sandman
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| Mamodman123 wrote: | Wasn't there an option for a chimney? Maybe it never came with one?
Got a pic of the beast SM? |
On the resto thread under M135 MM.
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Steve_S
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SM, is the copper chimney soldered onto the 167 boiler, or is it just a push fit (as it should be)? If its not soldered on, how does the engine look without it? I've seen pictures of M167s without chimneys which looked OK I thought.
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Sandman
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| Steve_S wrote: | It looks very good SM.... you've certainly been busy! Its come up a treat. The contrast between the copper and brass is more obvious now though. What is the diameter of the chimney? I wonder if its close to a standard brass tubing size available nowadays. I think that the exhaust pipe extension piece which leads to the chimney isn't original either. I think it should be a bit of loose brass tubing that slides over the end of the copper pipe that comes from the engine block, and the other end pokes through a hole in the side of the chimney. That seems to be the usual Bowman arrangement. Anyway, its a beautiful engine, and a credit to you! Whats your next project?
edit: Ah! M135! |
Thanks Steve. I'm not happy with the chimney and only spot soldered the exhaust pipe to hold it in place as a temporary measure. (Certainy not original) I'll investigate chimney possibilities later when I catch up on my work load. I might even leave it without a chimney as that was an option with Bowman engines.
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SPOKESMAN
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Brass plate it??
Sorry thinking aloud.
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Mamodman123
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| SPOKESMAN wrote: | Brass plate it??
Sorry thinking aloud. |
I think I said that Mike although noone really picked up on it
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Sandman
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| Mamodman123 wrote: | | SPOKESMAN wrote: | Brass plate it??
Sorry thinking aloud. |
I think I said that Mike although noone really picked up on it |
It would still not be original and would require an insert to make it a push fit on the steam dome.
It is purely cosmetic at the moment as far as I'm concerned.
Needs more thought.
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Wallace
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| Sandman wrote: | | Mamodman123 wrote: | | SPOKESMAN wrote: | Brass plate it??
Sorry thinking aloud. |
I think I said that Mike although noone really picked up on it |
It would still not be original and would require an insert to make it a push fit on the steam dome.
It is purely cosmetic at the moment as far as I'm concerned.
Needs more thought. |
SM, the resto looks great mate. Come up real nice.
When you do get dimensions of the original Chimney just let me know and I'll see if I can get hold of some brass that may have correct diam, one way or another.
Cheers
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Sandman
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Thanks Wallace.
I've been checking around and there are a few flaring tools which are not too expensive, but they're not big enough. I'm still looking though. 
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sparky
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thatll be a brilliant porject and the chimney looks just right exept as the others said it could be brass plated
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