Johnson tiller throttle, need help...

[mudslinger239]

I have a 1956 Johnson 15hp outboard. The turn throttle on the tiller handle turns, but the "teeth" on the end where it meets the other "teeth" to adjust the throttle are worn down. Sometimes they catch, and other times they slip . Can anyone give me some suggestions on how to fix this, or where I can buy the new connectors?<br /><br />Cam

 

[chilifriedpork]

Re: Johnson tiller throttle, need help...

(from maintaining Johnson/evinrude outboards(web page)<br /><br />Throttle Twist Grip Has Lots of Slack: If the twist grip throttle handle <br />(steering grip assembly) has developed enough slack that it is hard to find your <br />position except if you move it from one way all the time. Or the engagement <br />gears on the twist grip shaft & the intermediate shaft allow the gear teeth to <br />jump out of mesh to where you may not be able to rotate the twist grip, you may <br />need to make some shim spacers. These can be made from the plastic of the sides <br />of milk jugs or other plastic bottles.<br /> <br />If you have slack between the handle itself & the linkage for the throttle <br />plate, then you will have to probably shim the bevel gears on the end of the <br />intermediate shaft & the housing, pushing the one gear rearward into a better <br />mesh with the other bevel gear. You may also have to shim under the other bevel <br />gear (raising it) that is pivoted into the lower cowling. These last two jobs <br />will have to be performed after the manual starter, vertical control shaft & <br />vertical control shaft gear are removed.<br /> <br />This bevel gear that sits in the lower cowling is held in position by a separate <br />plastic shaft. This shaft has a hollow center in it & can be removed by simply <br />forcing a medium sized screwdriver into this hole, & then by twisting at the <br />same time you raise the screwdriver, you can pull the shaft up & out of the <br />lower gear.<br /> <br />If the throttle twist gears disengage, you may be able to place a spacer on the <br />twist grip shaft between the end gear & the housing, pushing the shaft rearward. <br /> This can be performed without tearing any major parts of the motor apart. If <br />this does not help & the gears still jump the teeth & get out of time, then it <br />is time for a new shaft with the new gears, price of $46.70 for both it & the <br />matching nylon bushing. The newer parts have both bronze teeth as compared to <br />nylon & aluminum for the older units.

 

[mudslinger239]

Re: Johnson tiller throttle, need help...

thanks for the help. I didnt understand a lot of those words, but I get the main idea. I just have to get the timing right again, and then put something in there to keep them together.