RE: Tower Hobbies engine problems
If the Tower .46 no longer has compression, it was either bad to begin with, or has had an overheat.
We've tached a properly broken-in Tower .46 at about 13,300 RPM with an APC 10 x 6 prop.
Please remember that the Tower .46 engine is non-ringed, and can be ruined if it's run too rich.