Nissan 1992 40hp outboard motor

[joseph35]

I have two problems with my motor: my boat moves forward when I shift the lever in reverse (I shifted the lever from forward while the boat was in motion to reverse too quickly last week at the lake; could that have caused the problem?). When I turn off the motor, it makes a put put noise for about 4 seconds. Any idea what that could be.

 

[pvanv]

Re: Nissan 1992 40hp outboard motor

What is your model/serial; year is unimportant. Is it remote control or tiller? If you broke parts of the clutch dog, you may be jammed in R. May need to disassemble LU and inspect.

 

[joseph35]

Re: Nissan 1992 40hp outboard motor

Model: NS40C
Serial: 67822
remote/tiller: I know its not remote, so it must be tiller.

 

[pvanv]

Re: Nissan 1992 40hp outboard motor

Normally, both F and R gears turn all the time. The clutch dog selects which gear drives the prop shaft. Moving the shifter to R lowers the cam in the LU, which forces the clutch dog into the R gear. If that's stuck, or if the push rod spring in the LU is damaged, or if the shifter linkage came apart (either at the rod coupler of up near the powerhead), you could stay in R when you don't want to. Tiller models have a steering tiller handle; Remote models are setup for wheel or stick steering, and have an RC box to operate the shift and throttle via cables.

Grab a Factory service manual, available from any dealer (including me), and you can work on it; otherwise, time for a trip to the dealer for service.