Ken


I don't have a digital camera but I can try to explain what I did to mount mine (I mounted it last week). I followed steps 1 & 2 in the Gas Engine Installation section & laminated everything together. I then went to step 2 in the Glow Engine Install section & marked the firewall for where the centerline & thrust line should be located. I then extended these lines onto the lamintaed engine mount with the mount positioned over the firewall as shown in the picture above step 4 for glow engine installation. Next I took the measurements of the mount plate that comes with the G38 & centered it exactly over the centerlines of the laminated engine mount pieces. I marked the mount hole locations and drilled the out to accept 1/4 20 blind nuts that are 5/16" inch deep.

From here, I determined that to get the 6 7/8" required spacing from the firewall to the back of the spinner backplate, I needed spacers that were exactly 1 1/4" long. I made these spacers out of pieces of laminated 3/4" birch plywood & 1/2" solid pine (epoxied together). I traced a pattern onto the birch plywood that would match the contour of the G38 mount plate but not interfer with the allen head bolts that are used to mount the plate to the engine itself.

Once that was accomplished, I positioned the laminated engine mount (with the blind nuts installed) back over the firewall and drilled 4 holes through it & the firewall and installed 1/4 20 blind nuts onto the back of the firewall. Now to mount the engine, bolt the laminated engine mount to the firewall then bolt the engine to the laminated engine mount.

The only tricky part about this is the bolt for the upper right engine mount needs to be a different length than the rest so that it does not protrude into the area where you need to glue a 1/4 inch balsa stringer for the top sheeting. I used 2" bolts for the other 3 mounts & only 1 1/2" bolt for that mount.

I should also mention that you need to drill a hole through the engine mount right at the centerline so the shaft protruding from the back of the engine does not rub against the mount.

Mounting it this way, there is about 1/2" clearance from the muffler (stock) to the firewall. I will be getting a bennet smoke muffler & hopefully that will fit without the need to modify things further.

I installed my cowl tonite & you will need to cut an opening around the carb as it is too wide to fit concealed inside the cowl. Also, the ignition module buts right up to the lower inlet hole on the cowl, providing just enough clearance for the spinner back plate.



Hope this helps you out.


Jim