Stuka Stunt Control Line Forum
Archive, 2000–2021 · recovered from the Internet Archive
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Engine Assembly

Stuka Stunt Main Forum · 3 of 3 known posts recovered

RocketCityJim · Sep 05, 2000 10:13 AM

Engine Assembly#0 source
Well, we have had engine disassembly problems, why not assembly now? My question is, when re-installing the rear BB's and crankshaft in a Veco .19 BB, the shaft fits so tightly in the front BB's they are being pushed back out of the bearing race. How can I get the front BB's to stay in place while inserting the rear BB's and crankshaft?? Anyone with some ideas??

Thanks in advance

Jim Pollock

LNeumann · Sep 05, 2000 10:43 AM

RE: Engine Assembly#1 source
LAST EDITED ON Sep-12-00 AT 00:28 AM (EST)

This kind of reminds me of one of the adventure games we played on the computer some years back. We had gotten the "cheat sheet" for this game, but normally didn't use it. There was one point, however, where you would open a window and a "worm" of some kind would eat you. Not being able to solve this, we went to the cheat sheet to see how to handle the worm. The answer: "Leave it alone."

On your bearing problem, leave the front bearing out of the case while you slide the rear bearing over the shaft and then slip them into the case together. This will either press into place, or you may have to heat the case slightly to get the bearing to seat. Then turn the assembly over and set the back of the shaft on a wood block. Heat the front case if necessary and then press/tap the front bearing into place. Use a wood dowel on this, also, so that you don't damage anything. You can then put the drive washer on the shaft, put on a prop, washer, nut, and tighten it down to make sure everything has seated properly.

No, Jim, do not use the sledge hammer. Put it down. Put it down!

Leonard Neumann

Steve Helmick · Sep 12, 2000 12:19 AM

RE: Engine Assembly#2 source
Given a choice, I would prefer a hardwood dowel that would fit into the crank hole ( 5/16" or 3/8" should fit most), and a piece
of aluminum, steel or brass tubing that would fit over the crank
snout and allow you to push on the inner race. A heat gun or old toaster oven would be my choice for heat if needed, but not a torch. Steve