Mounting the engine in a Dynafocal is not an easy task even if you have done it before. I my case Jack Bombard has done it before on his RV 8 and yet we had a heck of time getting the bolts through the mounts, spacers and washers and into the engine. It seems there were enough tolerance differences that we had to find a better way. Here is what we learned:
1.If you can’t get the engine to line up on the plane with the Dynafocal mount take the motor mount off the plane and do it on the bench.
2.It is much easier to move the light weight mount around to get it into place, although we still had to muscle it some.
3.Don’t pound on the bolts; rather screw them in through the motor holes.
4.Get the washers on now that go under the nut, torque them in place and get the cotter pin in, it will be much more difficult on the plane.
5.Hoist the entire assembly in place and line it up the firewall motor mount bolts and snug them down.
6.I would not put cotter pins in here until close to the end of building; it seems many have to remove the engine on occasion to get to something done on the firewall.
7.Do not use this method if your motor mount is not properly mated to your firewall, meaning the bolts come in and out easily without trauma.
I understand this task is never easy although some are much more difficult than others. Jack was able to get his done in 2 or 3 hours, it took us 6. We even had 4 people at one point trying to get the last bolt in when we tried to put it directly on the plane. This method is much better when it is tough fit.
First attemp directly on the mount which is on the plane
