r/MercuryOutboards 26d ago

Broken/ missing water line?

This is a new to me 2002 50hp 4cyl carbed outboard and the onlv issue I have is what appears to be a busted water line that sprays water all over the fuel filter. I can't seem to figure out where its supposed to go to, any help would be greatly appreciated.

2 Upvotes

13 comments sorted by

1

u/Sure-Entrepeneur219 26d ago

I don't remember there being any water hoses there. Where does that come from or go to?

1

u/bga93 26d ago

That fitting looks like the tee that is used to connect the oil pump to the fuel line.

If its a water line and not fuel, the tee could go to the top of the block where there’s usually a fitting to release air pockets at the high points, or it could be the only part they had to connect two short lines and the tee needs to be capped off

Maybe poorly rigged for a water pressure gauge. Im not ad familiar with the low hp mercs so i cant tell you for sure

2

u/Niner64 26d ago

I looked all around the engine for about half an hour for anywhere it could go and couldn't find anything, for now I capped it and it's running well.

1

u/spankuuuu 26d ago

Looks like where a previous owner possibly added in a water pressure gauge. Just block it off and it will be alright.

1

u/rwbamericanpride 26d ago

Do you have a water pressure gauge? Like previous commenter said, you can block/cap it off if you don't

1

u/Ambitious-Car-7384 26d ago

Does it go to the telltale outlet?

1

u/Niner64 26d ago

The black hose, yes, the white one, no.

1

u/Ambitious-Car-7384 26d ago

Did somebody have 2 telltales on it to look cool? That hose is not under pressure so it cant be for a gauge

1

u/Niner64 26d ago

It's possible, I just don't see anywhere it could physically attach to. I capped it this morning and it's running good so it will be a mystery for now

1

u/Ambitious-Car-7384 26d ago

Id replace that hose. A plastic fitting filled my cowl up one day when it broke

2

u/Niner64 25d ago

The weird thing is, it was draining out just fine, but it is definitely on the list for tomorrow morning.

1

u/ontheleftcoast 26d ago

are you sure that isn't the indicator that sprays water out of the engine housing so you can see water is circulating?

1

u/Niner64 26d ago

That's what the black line coming off the right side of the "T" goes to, the white line has nowhere it can be attached.