40 Horse Johnson 1964 "Electromatic" problems

[gvrinten]

I have a 1964 40 hp Johnson engine. The Electronic transmission disengages at mid-high rpm. The control must be shifted to reverse then back into forward before it will re-engage. At low speed it will stay in Forward. Once the rpm's are increased, it will jump out. Any suggestions as to what may be the problem and possible solutions?<br /><br />Thanks a heap

 

[Joe Reeves]

Re: 40 Horse Johnson 1964 "Electromatic" problems

Gary... That problem could be caused by a few things as follows:<br /><br />Wrong Oil: Should be Preminum Blend, also known as Type C. You cannot use HiVis (manual shift) lube in the electric shift units.<br /><br />Low oil.<br /><br />Worn forward spring and hub: This is the usual problem, and if so, both the spring and hub will require replacing. The slightest scoring renders the hub and spring useless.<br /><br />Should you find that you need the hub and spring, contact me via e-mail. I have one each left in my remaining stock... expensive items but I'll discount them. ReevesJ32@aol.com