[olddog]

After remodeling a couple houses, I can tell you that I can do a better job finishing drywall than most professionals, however it takes me way way too long to make any money at it. You also learn from some mistakes along the way.

I'm sure as a novice engine builder, I would take way too long, but I would check everything twice. The risk is not recognizing a problem or not having the knowledge when doing certain steps. Some things only experience can bring.

I do things myself for three reasons:
1) save money.
2) I want to make sure it is done right.
3) I want the satisfaction of having done it myself.

I would recommend to Keith that he build into the cost structure to ship a top notch engine assembly book, accompanied with a video of him doing the actual assembly of the parts that he just shipped. Point out all the little things that the average Joe might miss and stress the really important things.

I have rebuilt countless small engines, and a few car engines. All long ago. I have read many books on engine building. I actually understand many things today that I did not know, when I built those engines. All ran without an issue. If the machining is correct (ring gaps included) and the clearances are right, it really does not take a rocket scientist to torque bolts in the proper pattern.

PS
A lot of people would buy the video, with no plans to build any engine. Write your own book and make some videos. You may make more money selling them than building engines. I will be your editor if you like. Most of the books I have read sure did lack a good editor.