Merc 115 4 stroke Alternator Belt Replacement

[BobG]

OK, I've looked in all the manuals I have and came up with a blank.

When you replace the alternator belt on a Merc 115 4 stroke, is it necessary to remove the flywheel?

I have a new belt, but it doesn't look like it can fit over the flywheel. Of course, my owner's manual says "have it replaced by a factory authorized repair facility" or some such drivel.

[Bamby]

Do you actually mean timing belt? It appears your engine has a stator charging system which doesn't include a belt. Anyway here's a decent service manual for your 115. Mercury 115 Service Manual

[BobG]

Nope. It has an alternator driven by a belt, which rides on a pulley under the flywheel.
It's squealing a little bit, from time to time, and that makes the Admiral unhappy.

[BobG]

Here's the page from the owner's guide. My 115 4 stroke (a 2012 model) is obviously different than the one in your maintenance manual link:

AlternatorDriveBelt.jpg (116.07 KiB) Viewed 3693 times

[curtiscapk]

sure looks like it would fit over to me. Have you tried to see if it will fit once its over loosen the alternator and fish her on the pulley and tighten her up

[BobG]

Well, of course, I could just try to fit the new belt over the flywheel...

I just haven't had the new belt in hand at the same time I've had the cover off, so I figured I'd see if anybody here could answer the question. Both the boat and the belt are about 30 miles from my current location.