Thanks for the kind words, John (@j-healy), Eric (@eb801), John (@johnb), Spiros (@fiveten), and Gary (@gwskat). I got the engine done and installed in the cowling. I plan to let the glue dry for a while, and then install the cowling tomorrow, do the last weathering, and call it done.
I have a love/hate relation with superglue. It can be very unforgiving. I made the mistake of using it to assemble my last engine, which made it impossible to replace the pushrods. I usually use a couple of white glues for canopies, PE, and smaller resin parts. The two I use are Ultraglue from Ammo by Mig, and Gator Grip. These are very strong white glues that work particularly well on canopies and PE. Ultraglue is very thick, almost like gradeschool paste, dries clear, and will bond to almost anything. I like using it on canopies as a gap filler. Gator Grip is thinner, but just as strong. I use it on PE and canopies. You can use either on resin. I used Gary's technique to attach the pushrods to my engine. I used a toothpick to place a smidge of glue where the pushrod would attach to the engine, then let it dry. I did the same to one end of the pushrod. I let them dry a minute, then when you bring them together, they stick to each other. I pushed the top end into position, then added a little glue to the base and the top, and let them dry. They are very solid. If you want remove them at some point, I suspect you could soak them in water and the bond would loosen. It is unaffected by paint, thinners, etc. I really like them for PE. You get a little working time to move them into position, and it is thick enough to hold those tiny PE parts in place while it dries. I don't use superglue nearly as much as I used to.
5 attached images. Click to enlarge.