Gamage’s Steam Engine

[JasonBModerator @jasonb]

Details sought

[JasonBModerator @jasonb]

A bit of a long shot but I wonder if anyone has one of these engines or another image as I'd like to see it from the other side to see what the bearing and eccentric arrangement is rather that take a guess at it based on other similar models.

Thanks J.

[Former MemberParticipant @formermember12892]

[This posting has been removed]

[michael pottsParticipant @michaelpotts88182]

 

 

This is a rather poorly NDC belonging to my son, the eccentric sheave is part of the crank disc.

 

Regards. Mike.

Edited By michael potts on 23/06/2021 21:07:14

[Former MemberParticipant @formermember12892]

[This posting has been removed]

[michael pottsParticipant @michaelpotts88182]

The strap and rod are broken and a solder repair has been attempted in the past. It seems to have just melted more of the rod away though.

Mike.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by michael potts on 23/06/2021 21:26:13:

The strap and rod are broken and a solder repair has been attempted in the past. It seems to have just melted more of the rod away though.

.

Ah … that makes sense of the cleverly worded advert

MichaelG.

[JasonBModerator @jasonb]

Thank you so much for that Michael P, No excuse not to make one now!

I would probably have ended up with one of the bearing blocks between crank and eccentric had I not had those images.

[BazyleParticipant @bazyle]

Can you afford to make one with the highest grade anti-friction metal like the original?

[JasonBModerator @jasonb]

No and I don't want any zinc alloy monkey metal failing over time

Colour of parts suggests I will be using bronze, it's also going to be the big bore version at 16mm rather than 5/8"

[Roderick JenkinsParticipant @roderickjenkins93242]

Are you sure you can match the superfine limits available from die casting?

Rod

[MichaelRParticipant @michaelr]

Posted by Roderick Jenkins on 24/06/2021 14:18:42:

Are you sure you can match the superfine limits available from die casting?

Rod

And also the 16/- price tag However it's going to make a nice engine.

Michaelr

[JasonBModerator @jasonb]

Posted by Roderick Jenkins on 24/06/2021 14:18:42:

Are you sure you can match the superfine limits available from die casting?

Rod

I'll die trying

[Former MemberParticipant @formermember12892]

[This posting has been removed]

[JasonBModerator @jasonb]

I've made a start, decided on steel bearing posts with bronze bearings rather than solid bronze ones.

Fresh out of the pickle.

[Harry WilkesParticipant @harrywilkes58467]

It will be an interesting build to watch keep the photos coming please Jason

H

[JasonBModerator @jasonb]

A bit more progress over the last week, cylinder still needs a bit more work and then the end covers will be profiled to a similar shape. I think this is the smallest flywheel I have made for an engine so will be interesting to see how it runs, I don't expect it to turn over as slowly as I like but that's not really what it was designed for.

[JasonBModerator @jasonb]

Almost done, just a lock nut to make and file down some plugs once the JBWeld has set then should be ready to try on air.

[Former MemberParticipant @formermember12892]

[This posting has been removed]

[Ady1Participant @ady1]

Lovely

A good save Jason, the info was getting sketchy

[JasonBModerator @jasonb]

Well the JBWeld set overnight but still needs filing down and I have not made the locknut either but thought I would try it on a bit of air. Locked at TDC the first time but an adjustment to the valve rod length soon had the valve centralised and off it went. Should be better with a decent air connection, gland packing and the aforementioned locknut plus a lick of paint but here is the rough and ready version.

Edited By JasonB on 26/07/2021 18:46:02

[Nicholas FarrParticipant @nicholasfarr14254]

Posted by br on 25/07/2021 19:53:39:

I recall a song that sums this up nicely, something like :-

Nice one Jason, nice one son. Nice one Jason, let's have another one.

On a more serious note, well done and good to see the result.

bill

Edited By br on 25/07/2021 19:55:07

Hi Bill I remember that song Nice one Cyril It was surprising how well it was danced too in my late brother a my newly formed mobile Disco earlier that same year.

Another very nice build JasonB.

Regards Nick.

[JasonBModerator @jasonb]

Well the old Advert said it was enamelled in red and green so I did not have much colour choice, I also opted for a black bed as per Michael's photo.

I'm quite pleased with how it turned out and considering the small flywheel and short conrod runs reasonably slowly. Also allowed my to do my first double acting piston valve as I had only done single acting before and first time with rod cross head guides.

A video of it running, the table it is sitting on makes it sound a bit loud but soon quietens when I pick it up, it stopped because I put my finger over one of the exhausts. Also looks like a bit too much endplay in the crankshaft so will move the flywheel along a bit.

[Former MemberParticipant @formermember12892]

[This posting has been removed]

[Ron LadenParticipant @ronladen17547]

Excellent, always amazes me how you find these subjects and more the point how you come up with a design and a set of working parts from just external views.

I thought that it came down to a reasonably low speed considering such a small flywheel.

Looks very nice also.

Ron

[Author]

Posts