Any tips for steaming Ogwen?

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CSL
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Any tips for steaming Ogwen?

Post by CSL » Thu Jan 25, 2018 10:13 pm

Hi all,

I'm asking this on behalf of a friend who has inherited a Maxwell Hemmens "Ogwen" but has never operated it (hoping that I'll see it running round my little circuit one day!).

I am inexperienced in all this, having obtained a Roundhouse Bertie last year and previously only had Mamods.

So:
- will a Roundhouse GFA work to fuel Ogwen?
- are the internal and external oils used on Roundhouse locos suitable for Ogwen?
- is there any general advice about running an Ogwen that would be useful to know?

Big Jim
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Re: Any tips for steaming Ogwen?

Post by Big Jim » Thu Jan 25, 2018 11:49 pm

If i remember correctly the ogwen was externally gas fired.

Be warned, some Ogwens (Ogweni?) Suffered with a slightly iffy build quality. I can't remember if it was early or late ones. PECO had a hand in the original idea for them incidentally but they didn't manufacturer them.

I would try it with roundhouse specification lube. If you find the lubricator empties of oil very rapidly, before you finish the run, try a thicker steam oil and see how you go.
If at first you don't succeed, use a bigger hammer!

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LNR
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Re: Any tips for steaming Ogwen?

Post by LNR » Fri Jan 26, 2018 12:26 am

It would appear according to Marc Horovitz that it's the later ones that had some problems,
Loco of the month article here,
http://www.sidestreet.info/locos/loco62.html
the article also provides steaming tips.
Good luck
Grant.

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ax1709cjm
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Re: Any tips for steaming Ogwen?

Post by ax1709cjm » Fri Jan 26, 2018 12:10 pm

I have one of these and it's a bit of a pain to run - not as easy as running my Bertie for sure. In answer to your questions:

- will a Roundhouse GFA work to fuel Ogwen?

Should do, I use a standard gas filling adaptor.

- are the internal and external oils used on Roundhouse locos suitable for Ogwen?

The steam oil may be too thin (as mentioned by others). I use a standard ISO460 steam oil (roundhouse is ISO220 I believe), and 3 in 1 for mechanical lubrication, although I was recently a thread which said 3 in 1 was not a good lubrication oil - anyway it works for me.

- is there any general advice about running an Ogwen that would be useful to know?

As I say I find mine is not as easy to run as my Bertie, but mine is quite an old tired model so you might have a different experience. I find the gas is hard to light (possibly because I had to replace the gas valve on mine as the original leaked, and the replacement valve thread is too coarse). I also find the gas tends to go out when I've raised steam and am clearing the cylinders of condensate. Mine is radio controlled on the reverser only, this can be a bit on/off in terms of control, setting the manual regulator to just the right amount (which depends on the pressure (which goes down when the burner goes out!)) halps a great deal.

Despite all my problems, I find once the engine has settled and burner relit it's a great little engine to run. If you are managing Bertie OK theres no reason why you shouldn't give Ogwen a go, in my opinion. :D

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ax1709cjm
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Re: Any tips for steaming Ogwen?

Post by ax1709cjm » Fri Jan 26, 2018 1:17 pm

Whilst, I think about it, here is a picture of my Ogwen pottering round the Hoole Railway. Hope the attachment works, not tried attaching an image before...
med_ogwen1.jpg

Oh and I forgot to say, I do have a scan of the manual that came with my engine (done for a friend who's lost his manual). Unfortunately it's quite big at around 3Mb. If you'd like a manual and can think of a way for me to get it to you, let me know.

CSL
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Re: Any tips for steaming Ogwen?

Post by CSL » Mon Jan 29, 2018 7:07 pm

Thanks everyone. Tips passed on.

ax1709cjm - the offer of the scanned manual is greatly appreciated but it may be that the original has in fact survived so I'll hold fire for now.

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