1/8" tubing coming out of lower unit??? HELP!

[mrclean12]

Hi all,

I have a 115 merc inline 6 cylinder outboard. I removed the lower unit to inspect the impeller since i had no water coming out of the ext hole right below the powerhead. I assume it had something clogging it because the impeller looks great & the engine never overheated.

My problem now is that when I was removing the lower unit there was a 1/8" rubber line that comes out the top front of the lower unit. Anyone know what this is for? I can't seem to find what it was for in my manual. I also can't figure out what year motor it is....I know its older by the design of it. Maybe '84ish?

Any ideas???

 

[sschefer]

Re: 1/8" tubing coming out of lower unit??? HELP!

It's the pickup tube for your spedometer.

 

[Moody Blue]

Re: 1/8" tubing coming out of lower unit??? HELP!

That tube is a water pickup for a connection to a speedometer. If not used you can either unscrew it from the fitting in the lower unit (plug the port afterwards) or just leave it as is.

As for the waterpump impeller, I would go ahead and change it out since its already apart. It's a cheap part and easy to do.

Post the S/N of the motor to determine the year. Should be a name plate on the front of the transom clamp tilt tube.

 

[mrclean12]

Re: 1/8" tubing coming out of lower unit??? HELP!

Thanks guys, I will look tonight for the serial #.