Johnson 150 GT shift rod adjustment

[FARQUART]

Need help! is there anyone that knows how to adjust the shift rod on my Johnson150. New pump, now reverse gear want to keep kicking out.It grinds alittle then disengages.I might have turned shift rod when lower unit was off.

 

[Dunk]

Re: Johnson 150 GT shift rod adjustment

It's not hard to do, but its got to dead right. Measured from the top surface of the gearcase(the part of the gearcase that mates to the leg of the engine)to the top of the offset on the top of the shift shaft. Long shaft(20") should be 22 13/32" +- 1/32". Exlong shaft(25") should be 27 13/32" +- 1/32". You measure this in neutral with the offset at the top of the shift shaft facing forward. This has to be dead nuts on or they won't shift right. The easiest thing to do is when you take them out is to remember how many turns it took to get it loose. Each turn is worth about 1/32".<br /><br /> This info came from a 1990 OMC shop manual for a 225hp. The gearcases are interchangeable so the measurement should be the same. If for some reason it's not adjusting easily into the range then you may need to check the exact specs for you engine.

 

[Dhadley]

Re: Johnson 150 GT shift rod adjustment

Use the measurement for your motor. While the gearcases are interchangeable the shift rods and linkages are different between the looper and your crossflow. Be sure to measure from the top surface to the center of the hole at the top of the shift rod. GT 150's are 20" motors.