57 Johnson Seahorse- now jumps from gear

[russell02050]

Hello All. Have had this motor for 40 years- its a 1957 7.5 HP always freshwater, light usage. No previous gear shift or drive problems.<br /><br />On installing the motor last season, I left the motor in an unstable position in the boat - sitting on one of the boat seats. It rolled over fell about one foot down to the fiberglass deck of the boat. <br /><br />Now when in forward gear at anything over half throttle it jumps out of gear. Disconcerting. Can't really use motor in this condition. <br /><br />I am wondering if this is just a linkage alingment problem (ie drive gears ok but linkage not fully "in drive" position. any ideas appreciated. Thanks!

 

[JB]

Re: 57 Johnson Seahorse- now jumps from gear

Hi, Russ.<br /><br />My guess is that the shifter shaft is bent just enough to keep it from going all the way into Forward.<br /><br />There should be a threaded adjuster on the shaft, or you may be able to straighten it.<br /><br />Good luck.

 

[slow_boat]

Re: 57 Johnson Seahorse- now jumps from gear

I agrree with JB. Also, if it jumps out of gear too many times it will round the ears on the clutch dog, a fairly costly little part to replace. I would take care of it asap.

 

[steelespike]

Re: 57 Johnson Seahorse- now jumps from gear

If it fell on the shifter it may have damaged the shift yoke or cradle.

 

[steelespike]

Re: 57 Johnson Seahorse- now jumps from gear

I dont know if the 7.5 requires removal of the <br />power head for service, if it does there is a bell crank under the power head that could be damaged.

 

[russell02050]

Re: 57 Johnson Seahorse- now jumps from gear

Hey its great to get feedback on a 45 Year old motor ... within 8 Hours time of asking the question. Thanks to all.