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Author Topic: Mamod Stirling loco.  (Read 10424 times)

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Re: Mamod Stirling loco.
« Reply #60 on: May 21, 2019, 02:02:55 pm »
Many Thanks for posting these high res images & video Allan. It proves my point that you not get what Mamod is currently offering, as the shop low res images are of a different Stirling!

Your enhancements have certainly improved on the Plain Jane look. Nicely done.

What is going on with the buffer beams? There is a very visible gap between the top of the front buffer beam & the loco's running plate (why?) and they've clearly got the mounting hole for the rear centre buffer coupling in the wrong place as the buffer is mounted above its cutout in the buffer beam?

Interesting to see that here is another Mamod loco that suffers from erratic speed bursts. We experienced these on earlier Mamod locos (William, William II, Mark 1 & Mark II) but a discussion online failed to find what was causing them. What we did discover was that they occurred less when using the thinner ISO 220 steam oil, compared to 460 & 680 steam oil. But those were all externally fired locomotives, whereas Stirling is their first internally fired loco. Maybe something to do with their design of steam turret used which is allowing some water to be carried over into the steam pipe which is being flashed over into steam occasionally? The other common factor is they are all brass boilers - there was a hint that the Stirling may have had a copper boiler but presumably dropped due to cost?

Be interested to see one running in a garden railway environment in due course.

Chris Cairns