120xr sport jet 1996

[gcmman]

i just bought a sport jet and i also bought a merc service manual. my question how to add oil and how often to check it, for the gear box. i see a allen plug on the housing just above the pump housing. can i fill it there or do i have to remove the rear section to get to it. the manual doesn't tell you anything.

 

[rodbolt]

Re: 120xr sport jet 1996

what manual did you buy?<br />the gearbox fill and drain plugs are at the fwd edge of the ride plate, the stator must be removed for draining and filling.

 

[gcmman]

Re: 120xr sport jet 1996

thanks for your quick reply. the manual is a merc service manual. i don't what version it is. it mainly deals with the jet drive repair. i couldn't find anything on servicing the gear box. i will look where you said . thanks.

 

[rodbolt]

Re: 120xr sport jet 1996

its in the back of the manual under stator oil change and gearbox oil change. the manual,if its like mine, is based on the USmarine/force format and is difficult to read.

 

[funpilot]

Re: 120xr sport jet 1996

I find it helps to have a pump style quart bottle of lower unit lube to fill the gearbox. The stator does require a bit more careful disassembly to tend to, and takes only a few oz. of oil, primarily to lubricate the forward portion of the impeller shaft. I've never found water in either my gearbox or stator, but I recommend draining and filling once year, at the end of your season. That way, you are storing your motor with clean lube with no entrapped moisture to corrode parts.<br /><br />Good luck<br />fp

 

[rodbolt]

Re: 120xr sport jet 1996

actually the stator is at the aft end but its a minor techicality <br /> but I agree with the rest. water and a few months storage can make a simple cheap repair a bank breaker come spring time.

 

[gcmman]

Re: 120xr sport jet 1996

your saying that i have to take the stator out from the drive (unbolt) to be able to check or change the fluid. sounds complicated to me

 

[rodbolt]

Re: 120xr sport jet 1996

not to check just to change it. its not particularly complex and needs to be done regardless of complexity. its also a good time to inspect the impeller and check the impeller to wear ring clearence.<br /> thats why they call it maint. if its not done it can destroy the package.

 

[gcmman]

Re: 120xr sport jet 1996

thanks rodbolt for your info, i will attack it when the weather warms a little