hose on '96 Mariner 40 lower unit

duckahlr · #1 April 12th, 2009, 02:25 AM

I just bought this motor this week. It's a 1996 Mariner 40hp. (C40ELHPTO) I was wondering what this hose coming from the lower unit is for? I was told that the motor was just serviced and ran just fine. Any idea's? Thanks

Moody Blue · #2 April 12th, 2009, 09:43 AM

That would be the pitot tube pickup for a speedometer connection. I never used mine so I removed it when I did the waterpump service on the LU.

There will be a threaded plastic fitting attached to the hose that threads into a boss in the LU. Simply unscrew it and install a 1/8" (I think) pipe plug in its place if you don't need the pitot tube.

duckahlr · #3 April 12th, 2009, 11:28 AM

Awesome thanks Moody!!!