 |
The Unofficial Mamod and Other Steam Forum
The Original Unofficial Toy Steam Forum
Established 2006
The biggest, most popular steam forum around! Accept NO imitations!
We have a growing community of regular posting members who chat about all aspects of toy and model steam.
|
| View previous topic :: View next topic |
| Author |
Message |
CCairns
Steam fanatic
Joined: 24 Apr 2007
Posts: 1298
Location: Glasgow, Scotland
|
 Posted: Fri Mar 28, 2008 2:07 pm Post subject: |
 |
|
| Quote: | | would turning the wheels in one or the other direction draw the oil down the feed pipe before you fill the boiler? |
No it would not with the cap fitted, as the steam pipe inlet is above the level of the oil, and needs the steam condensing as water to displace this oil. Here's the lubricator with the oil at the maximum level which still allows the cap to be fitted.
And with the cap fitted.
| Quote: | | if not, the method of sucking it up via the exhaust seems a good idea. |
This was a recommendation I found on a Yahoo group and I've used it on 2 of my Mamods. Simply fit a piece of silicone tube over the exhaust pipe (if your smokebox is rivetted to the boiler then this may be tricky as the exhaust pipe is actually offset from the centre, I've bent mine so the exhaust pipe is centred in the chimney). Now inject some steam oil into this silicone tube with the reverser set for fully forward. Then turn the wheels backwards to suck this oil through. Sadly as you've pointed out, it is possible to suck oil into the boiler using this method. I guess it is best to use as little steam oil as possible and limit the amount of wheel movement.
I do not like removing the steam dome if possible, as these tend to leak steam (particularly if you are still using the very thin washer that Mamod fitted), and I now fit a thicker rubber washer and tighten the dome whilst under steam to get it nice and steam tight.
The good news is that after some more running, I now have some emulsifying in the lubricator, proving that it is working OK. Despite flushing out with soapy water, I've still got some oil contamination in this boiler, but at least it is not the thick wax that you had in your loco, and is slowly being removed with each boiler full of boiling water.
So I'm going to get those 'O' pistons I have some new 'O' rings, and fit these together with my unused IP Eng lubricator to a troublesome SL1K which has been occupying my workshop time for quite a while now.
_________________
Chris Cairns.
http://www.freewebs.com/chriscairnssteam/
http://christophercairns.fotopic.net/ |
|
| Back to top |
|
 |
Rob
Full member
Joined: 18 Oct 2007
Posts: 697
Location: Leicester
|
| Posted: Fri Mar 28, 2008 2:52 pm Post subject: |
|
|
| CCairns wrote: | | Quote: | | would turning the wheels in one or the other direction draw the oil down the feed pipe before you fill the boiler? |
No it would not with the cap fitted, as the steam pipe inlet is above the level of the oil, and needs the steam condensing as water to displace this oil. Here's the lubricator with the oil at the maximum level which still allows the cap to be fitted.
|
ah right, i thought the delivery pipe which takes the oil to the steam pipe was at the bottomof the lubricator, not at the top which needs something to displace the oil.
could you just squirt some oil down the delivery pipe when filling the lubricator?
and, how is the burner?  |
|
| Back to top |
|
|
CCairns
Steam fanatic
Joined: 24 Apr 2007
Posts: 1298
Location: Glasgow, Scotland
|
| Posted: Fri Mar 28, 2008 3:18 pm Post subject: |
|
|
| Quote: | | could you just squirt some oil down the delivery pipe when filling the lubricator? |
Yes that is exactly what I've just been doing, with the excess just filling up the lubricator.
| Quote: | | and, how is the burner? |
Just finishing a review of burners which should appear at the top of this Forum shortly.
_________________
Chris Cairns.
http://www.freewebs.com/chriscairnssteam/
http://christophercairns.fotopic.net/
Last edited by CCairns on Fri Mar 28, 2008 10:18 pm; edited 1 time in total |
|
| Back to top |
|
|
Mamodevon
Junior Member
Joined: 10 Aug 2007
Posts: 178
Location: Plymouth, Devon
|
| Posted: Fri Mar 28, 2008 9:15 pm Post subject: |
|
|
| Titan wrote: | | James wrote: | Nice one!
How do you fit the Roundhouse one again? Pipe to banjo fitting in the whistle?? |
No, the Roundhouse ones go directly in the main steam pipe.
So, after deciding where to put it (cab seems favourite) you take the steam pipe from under the boiler and route it in to the cab to connect on one side of the lubricator, and the other side you connect to the valve block at the front, so that the full flow of steam passes through it on the way to the cylinders. If you have an in cab regulator, you can connect it to the output of that and then pipe to the front as above.
Oh and I forgot - welcome to the forum Chris!! |
There is a pic of Pandora on my website under 'My Collection' with a smaller version of the Roundhouse lubricator fitted within the cab. This design works well, as does the IP design, if fitted properly. However, I am working on a design with a company to produce a special lubricater specifically for this loco.
MD
_________________
www.mamod-steam-railway.co.uk
www.dream-steam.com
 |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
)