Details sought
JasonB | 21/06/2021 18:57:24 |
![]() 25215 forum posts 3105 photos 1 articles | 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 Member | 21/06/2021 19:33:26 |
1085 forum posts | [This posting has been removed] |
michael potts | 23/06/2021 21:06:10 |
50 forum posts 2 photos |
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 Member | 23/06/2021 21:20:16 |
1085 forum posts | [This posting has been removed] |
michael potts | 23/06/2021 21:26:13 |
50 forum posts 2 photos | 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 Gilligan | 23/06/2021 22:33:48 |
![]() 23121 forum posts 1360 photos | 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. |
JasonB | 24/06/2021 07:00:37 |
![]() 25215 forum posts 3105 photos 1 articles | 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. |
Bazyle | 24/06/2021 13:28:42 |
![]() 6956 forum posts 229 photos | Can you afford to make one with the highest grade anti-friction metal like the original? |
JasonB | 24/06/2021 13:54:08 |
![]() 25215 forum posts 3105 photos 1 articles | 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 Jenkins | 24/06/2021 14:18:42 |
![]() 2376 forum posts 800 photos | Are you sure you can match the superfine limits available from die casting? Rod |
MichaelR | 24/06/2021 14:49:53 |
![]() 528 forum posts 79 photos | 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 Michaelr |
JasonB | 24/06/2021 15:05:45 |
![]() 25215 forum posts 3105 photos 1 articles | 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 Member | 24/06/2021 16:23:16 |
1085 forum posts | [This posting has been removed] |
JasonB | 30/06/2021 20:07:00 |
![]() 25215 forum posts 3105 photos 1 articles | I've made a start, decided on steel bearing posts with bronze bearings rather than solid bronze ones. Fresh out of the pickle.
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Harry Wilkes | 30/06/2021 20:51:34 |
![]() 1613 forum posts 72 photos | It will be an interesting build to watch keep the photos coming please Jason H |
JasonB | 04/07/2021 18:45:48 |
![]() 25215 forum posts 3105 photos 1 articles | 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.
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JasonB | 25/07/2021 19:08:36 |
![]() 25215 forum posts 3105 photos 1 articles | 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 Member | 25/07/2021 19:53:39 |
1085 forum posts | [This posting has been removed] |
Ady1 | 26/07/2021 13:09:38 |
![]() 6137 forum posts 893 photos | Lovely A good save Jason, the info was getting sketchy |
JasonB | 26/07/2021 18:45:25 |
![]() 25215 forum posts 3105 photos 1 articles | 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 |
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