Reply To: New to me Mark 10

[Tom Alexander]

Hi billw: YES it is pumping water! That is a good thing right now but the impeller will have to be changed before putting it on a boat and leaving shore. I did the first bit of reading about this little beastie last night and am amazed at the complexity of the job that is impeller changing on this motor! Surely they could have made it more involved. Sorry, getting a bit cynical there. My only other experience in the outboard world of changing impellers is on a 1959 Johnson 35 HP. It was done during a complete rebuild of the lower unit after I received the Johnson motor as part of a package deal. That ‘package’ by the way is finished and the family spent a couple of weeks on various Sierra lakes last summer. Couldn’t be more pleased. This Mark 10 will be fun if I can get the time and find the parts. The tools won’t be an issue, I have a pretty complete shop and can fab up just about anything, but not impellers! Where do you get stuff for this. On the Johnson rebuild I used  Marine Engine pretty exclusively. Very expensive from what my friends tell me, but they had all the parts I needed and, good exploded diagrams to boot. I went back to them looking to see what is available from them and I can’t even make out the diagrams and most parts are ‘unavailable’. I do have a manual coming. But as we all know about manuals, some are way better than others. I got a few pics taken today of the area under and to the port side of the carb showing that lever etc. I see that the grubs have ‘slipped’ and they are no longer entering the hole drilled in the shaft. We scribed the top of the shaft to help with alignment but apparently did not get it right as the joint was slipping today when I tried it and the grub screws are about 30 degrees off! I will try to post a pic or two if I can figure out a way to reduce the file size necessary to post. Thanks very much for your reply btw, you guys in this club have a wealth of knowledge and it’s great you take the time to pass it on.