Topsey Turvey by El Gringo

[el gringo]

Design by Phillip Duclos
[ame]https://www.youtube.com/watch?v=SUbn_eUr-9M[/ame]

VALVE_GR.JPG

 

[stevehuckss396]

I haven't commented on your stuff until now but you have done a nice job on all the engines you have posted pictures of.

 

[kadora]

As usual perfectly made engine.
Does termosifon water cooling work properly ?
I want to use it for my new engine but I am not sure if this type of cooling system really works on small engines.
Thank you

 

[RonGinger]

A friend build one of these, and I started it one day. It slung a nice line of oil down a brand new shirt from my shoulder to my belt. Ruined an almost new shirt. I have since not been fond of those engines.

But this is a nice bit of model making.

 

[el gringo]

I had too much compression causing low speed and heating problems.
I installed a large cooling reservoir and lowered the compression and things got better. The radiator removes some of the heat.
If I went back to the original design the thermo-siphon would probably work ok.
I don't think this type of cooling is well suited to these small low compression, low RPM engines.

What type of engine are you thinking of building next?

 

[el gringo]

Ron,I bet your friend didn't wear a new shirt when he ran it...
el gringo

 

[kadora]

thank you el gringo for your answer.
I have half finished engine // roughly 10 ccm // . This is my first
water cooled engine so I do not have any experiences with water
cooling
I will probably machine some kind of primitive radial water pump.
Kadora

 

[el gringo]

I made one from the gears out of a broken VSR drill. the original design
was from Bob Shore's Silver Bullet...

https://youtu.be/BPBF_-qqDZQ