outboard drive problem?

[Braydan Johnson]

I have a 75 hp chrysler and the motor runs great it goes into gear both forward and reverse just fine however when im in the water and i hit the throttle the motor slips out of gear. A friend has suggested the oil in the foot as the problem, I changed it and it still slips. The other suggestion was the throttle cable has streatched and needs to be tightened though this seems less likely to me, any suggestions would be appretiated, thanks

 

[jerryjerry05]

Re: outboard drive problem?

Profile??? Put the boat in the water.Unhook the shift cable.Put it in gear by hand.See if it still does it.
In the lower is a part called a clutch dog.From slow shifting/cables out of adjustment the edges on the dog round off and slip out of gear.J


#9 on the diagram

 

[Frank Acampora]

Re: outboard drive problem?



Here's one thats easier to see and it is from a pre 1979 Chrysler. Later Chryslers and Force have a longer prop shaft as the major difference.

The clutch is between the two gears and both sides have "dogs" cut into them, Both gears also have these mating dogs. First check the shift linkage to be certain it is centered. If it is, and as jerry said it slips out of gear when you operate the linkage by hand, then the dogs are worn. Sometimes you can extend the service life by reversing the dog clutch on the shaft but if the dogs on the gear are worn rounded, you must either regrind them square or buy another clutch and gear--very expensive, a used lower unit will be cheaper.

Forward gear is the one sitting off the shaft in the first photo and you can clearly see the dogs on both the gear and clutch. This is why it is important to "snap" the lever forward to put the engine in gear rather than "ease" it.

 

[Braydan Johnson]

Re: outboard drive problem?

Thanks for the advice i"ll see what i find