Hi! That elbow engine is my latest acquisition. Pretty happy about it since it's a bit rare and hard to make (at least for me

)
It was make by Claude St-Laurent in the 70's, a Quebec machinist who's also made many 7 1/4" gauge locomotive...
Need some lapping and "regasketing", but run well!
Hope it will please you!
https://youtu.be/rbre-6n4RZI
I have never seen this design before. Very interesting and fascinating to watch the slow motion captures.
Wonderful addition to the collection!
I'm with Benny in never having seen one before - quite interesting to say the least. I probably wouldn't have even known how it functioned if not for the slow motion - thanks for sharing.
What a fascinating design...seems to work beautifully !
Rog
WOW....never seen anything like that before......absolutely fascinating to view.
From what I've seen of them, they can be really finicky to run and don't have a lot of power which they actually do need to overcome their less than efficient geometry. Really easy to build them with a bit of bind in the system, so tolerances are best kept a bit on the loose side, which again makes them often be a bit weak when running.
A really good machinist, who sets them up square and with proper tolerancing, can make a good one that runs very well. Seems that may be the case with this one here!
NICE !!!
From what I've seen of them, they can be really finicky to run and don't have a lot of power which they actually do need to overcome their less than efficient geometry. Really easy to build them with a bit of bind in the system, so tolerances are best kept a bit on the loose side, which again makes them often be a bit weak when running.
A really good machinist, who sets them up square and with proper tolerancing, can make a good one that runs very well. Seems that may be the case with this one here!
NICE !!!
Daniel you are right, I have had two of those, one ran really well and the other one I couldn't get to run despite working on it for 6 hours.ö
the one above runs really nicely.
Daniel you are right, I have had two of those, one ran really well and the other one I couldn't get to run despite working on it for 6 hours.ö
the one above runs really nicely.
It is but have an air leak between the wheel and the frame. I will try to improve it soon and let you know!
Thanks for sharing! That really is a unique engine design.
very unique. I had never seen one before either!
Thanks for the slo motion video
crazydoug
Neat! Thanks for sharing.
That sure is a little beaut that one...
Never seen one of these running either, thank you so much for sharing !
Sure is a different type of engine and I like it.