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Mike Walters,     London Ontario

Mini V1 Vertical CO2 type compressed air engine  First posted 9/13/2003

I have got a start on the Mini V and it is a very fun little engine to build.


I decided to go with the two piece crank case cylinder to get the nice contrast between the aluminum and brass as well I made a one piece crank shaft and bushing .


I look forward to finishing it this weekend or next so I will keep ya posted.


The engine is well designed and has been fun to make to this point , It has a one piece brass crank shaft and main bearing simply because it was a little easier for me to make that way.


I intend to put a prop on it and cut the grooves in the cylinder a little deeper just to be different.


I would recommend that anyone wanting to try a small engine project give it a try.


Here is my progress to this point hope to be done next week.


I am going to run the intake for the air through brass crank case back and straight out the back into a hole in a custom mount I am finishing up now to hide the air lines etc.


Very cool engine runs very fast and uses a very high pressure ( 40 pounds starts it runs nice on 35 ) I decided to play around with the exhaust sizes a little and drilled just two holes in the cylinder.This produces a rather loud  intermittent pop from the exhaust and it sounds like a 4 cycle gas engine.


This is the mount I built for mine to eliminate the need for screws in the head.

The plans can be found by clicking here. 


Copyright 2003,  Florida Association of Model Engineers and engine builder as noted above, All rights reserved.