Re: 69 40hp johnson conversion to tiller
Yes, it can be done. There is an "emergency throttle" on the port side of the motor, which must be removed in order to fit the tiller arm in its place. You will have to remove the "KNOB & SHAFT, throttle" (PN 0377211), and then remove the "COVER, Throttle Control" (PN 0305380) that the knob & shaft fits into. In the place of the knob and shaft, you insert a shaft with a geared end that meshes with a similar shaft in the tiller handle. I tried to find the correct name and PN for this item on the Bombardier parts page but its not listed.
I think the toughest part of your project will be to find the tiller handle and the correct throttle shaft for the lower housing. I know that they were available at one time because I have an owners manual for an old Johnson 35hp Super Seahorse (close to the same engine as the 40hp) and it shows an available handle for the motor. You may also be able to use the same handle that was used for the earlier Evinrude and Johnson 35hp motors. For this item, I would surf EBay and ask your local outboard repair shops if they might have one in their "junk pile." If so, you could probably purchase the item for very little.As for the log shaft to short shaft conversion, that can be done as well. If it were me, I would just look for a short shaft motor in the first place but, if you are getting a good deal on a long shaft, you can certainly do this. You will need the "DRIVE SHAFT ASSEMBLY, Standard" (PN 0379875), "ROD, shift, upper" (PN 0377398), "TUBE, Water, in" (PN0305492) and "TUBE, Water, out" (PN 0314322). If you have trouble finding the water tubes, you may be able to make them from copper tubing - just be sure to get the right outside diameter so that they will fit snugly in the water tube grommets. While your doing all of this, replacing the* "GROMMET, Water tube (4) (PN 0304023) and the water pump impeller (don't have the PN - the parts diagram that I am looking at has a mistake & it is missing) isn't a bad idea. The same is true of the "O RING, Drive shaft to crankshaft (PN 0303059), the "O RING" (PN 0202591 and the "SEAL" (PN 0305306)
