M122 end cap problem

davejw · M122 end cap problem

I bought an M122 recently and although in very good condition overall
I knew there was a problem with the end cap because of the amount of solder attached.
I have removed the solder, (great tip using wire wool with flux on it)
and it's revealed what looks like an old overflow hole.
There is no sign of any corrosion although it is slightly dinged
There is a something loose inside the boiler, might be the old collar.
I am not sure of what to do next. Any idea's. Fit a plug ? A bottom overflow ? A new end ?
I would appreciate your comment's. Attached some photographs.

Stitch1615

Obviously a new end cap for an absolute restore,
but then a blow down valve might be nice.

Les

If you have the confidence to take the endcap off you could then either fit another plug or solder a piece on the inside off the endcap to seal it.

Atticman

I suspect someone fitted something to refil via a pump while steaming at sometime.

Advice as above- you can either resite a water pump or restore/ make a new endcap

Steve_S

I think I'd make a new endcap for it if it were mine. While the endcap is off the boiler you can clean it out and remove any scale or other bits and pieces that might be in there.

Mamodman123

Steam Models

Which ever way you go you'll need to remove the endcap.

If you want to use the hole for a new ferrule, (blow down valve or a water feed) then fine.

But if you don't.

Then don't play with it, make a new endcap.

Atticman

There are options though, a small disc of brass with a smaller area that size machined on a lathe then soldered in with the endcap off wouldnt look too bad and be a talking point

davejw · M122 end cap problem

Thank you very much for your replies.
I have a friend who will make me hardwood formers and, following a thread on the forum, I feel fairly confidant that I can make a new end.
If I am not happy with the result I know that I can solder a new insert in place and fit a plug in the existing end cap.
Can any let me know the thickness of brass I need ( I have seen 0.016" ) and the best place to buy it.

Steam Models

Quote
"Can any let me know the thickness of brass I need"

Easy ... about 20% thicker than the brass of the boiler barrel.
If you have a mic, simply measure what it is.
At a guess you will need .8 mm (but could be wrong, as it might be as thin as .6 mm)

As for buying the brass, I don't know where you live.
But if I were you I would try to buy it locally first,
either from a plumber or a Plumbers Supply House or an outlet suppling non Ferrous Products.

If you haven't made an endcap before you will be surprised at just how easy it really is.

Good luck with everything,

davejw · M122 end cap problem

It's been a while since I started the thread, but holidays and a bout of 'flu have delayed things.
However, I took the forums advice and replaced the end cap.
A friend turned me some formers but then a met someone who turned me one on his lathe, the formers might come in use sometime.
As a complete novice,the thoughts of ruining the boiler made me very nervous but I need not have been because by following the threads on the forum the job went very well.
The only snag was that I damaged the end cap by tearing it slightly on the rim when I was removing it. I did not know how thin Bowmans boilers are !! It was not going back, so it did not matter
I used a slice of one of the formers to make a template to correctly position overflow hole on the new cap which was very handy.
I also tinned inside the new cap to ensure a steam proof seal, then fitted the over flow plug.
I have added some photographs of the old and new end cap and template, plus the end cap in place and, of course the finished job
I just need to make some oilers, again I will follow the threads
Thanks again to the forum for all the great advice

MrDuck

Very nice resto

flywheel61

That turned out really nicely, in a couple of years you won't know that it's been replaced, well done. It's great having friends who can help/do things for you.

Cheers

Chris

Les

Steve_S

You've done a great job there. Well done!

Atticman

Brilliant job- very well done

MODmanMax

The result is well worth the effort. Nice engine.

davejw · M 122 end cap restro completed

At last !! My M122 restoration is finished with making the two missing oiler taps.
Of course, being a complete novice I did not make them first shot, but after two attempts I was happy with the result
Again, thanks to Steve for the excellent thread on how to make them.

kevininasia

Wow, that is a very nice job. Tidy and professional. Well done!

Steve_S

They look very good!

Atticman

Absolutely superb, hard to tell if its original, well done

MrDuck

Excellent resto of a worthy engine

Great skills you have

Dean W

Really good job!

M122 end cap problem

M122 end cap problem

M122 end cap problem

M 122 end cap restro completed