'65 Johnson 33HP flywheel torque + key

[rnoland]

My kids recently came up with a 65 Johnson Seahorse 33 model rxe-13b and I have been trying to help them get it runing. I got all of the starter wiring sorted out, only to discover we had no spark... Off came the flywheel to discover points covered in green goo. Once I got all of that cleaned up and re-assembled everything, it ran for about 15 seconds til I sheared the flywheel key. I obviously didn't have it torqued enough, does anyone have the correct torque for this engine?<br /><br />The other problem I have is I can't seem to find the correct key for the crank/flywheel. The local auto parts place has a pack of like 5 different keys, and one of them looks like it should work, but it just won't quite fit right. Where can I find the correct key...<br /><br />Thanks,<br /><br />robert.

 

[Paul Moir]

Re: '65 Johnson 33HP flywheel torque + key

105 ft/lbs. Any less and the flywheel key will shear. The key is a dealer item - a little different from a standard woodruff key. Dealer sells them for about three bones. Part number is 120395.<br />If the flywheel hub or the crankshaft ended up marred, you'll want to do this:<br /> http://forums.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=28;t=029310;p=1#000022 <br /><br />105ft/lbs is a heck of a lot of torque. You'll need to hold the flywheel with a automotive flywheel turning/holding tool, a length of bar attached to the flywheel by two longer 1/4" bolts along the ring gear, or I've used a chunk of plastic to jam up the electric starter. That's a good way to mess up the starter so beware.<br /><br />I've got a RXEL-13B in peices that I'm slowly working on. They're tough & reliable engines. Click my man-next-to-house icon. That's my RX-10 (28hp), which is only a little different.<br /><br />Hope that helps, and welcome to iboats!<br /><br />(Also, points need to be adjusted to open .020" max.)

 

[rnoland]

Re: '65 Johnson 33HP flywheel torque + key

Wow, that is tight... Thanks for the info, I'll hunt down the key and give it a try.<br /><br />robert.

 

[Joe Reeves]

Re: '65 Johnson 33HP flywheel torque + key

No offensive criticism intended here. That 33hp model incorporates the 311356 crankshaft which uses a smaller flywheel key..... 307480.<br /><br />Install the key so that the outer flat side is straight vertical with the engine, NOT aligned with the crankshaft taper.

 

[Paul Moir]

Re: '65 Johnson 33HP flywheel torque + key

No offence taken! Thank you for looking over my shoulder. I honestly appreciate it. <br /><br />I must be loosing it, that part number I gave is the key from a Sportwin parts list!