I have ran into a little bit of an issue with my motor installation. This is my first electric, so bare with me. So I decided to get a different motor than the one that was specified. I decided to get the Hacker A50-12S. The mounting pattern for the motor was slightly off so I redrilled some mounting holes using the center as a base for re-mounting the motor. The problem came in when I mounted the cowl with the predrilled mounting holes. The prop adapter is not centered within the cowl. So after trying to figure everything out, I think the problem has to do with the length of the motor mount and motor. The instructions say for a glow motor to the back of the motor should be 146 mm. So the mounting spacers that come with the plane are 62mm. The original e-flite motor is 62mm and lets say 2mm for the mounting plate and maybe 5mm to the back of the collet adapter, that is 131mm. By comparison the hacker is 62mm for the spacers and 71mm to the back of the prop adapter, this equals 133mm. With this setup the back of the prop adapter is recessed within the cowl. So I added a 5mm spacer, with this setup, the back of the prop adapter just barley clears the cowl but it is on right side of cowl (looking from the back). So what I was thinking was just re-mounting the cowl, this way I could center the prop and give some additional clearance for the cowl. I tried to find longer machine screws, but the maximum length I could find was only 3" which is what was supplied with the plane.
Should I just re-mount the cowl and call it good or do you guys have any other suggestions?
Thanks for the help.