Learning the Ins and the Outs of an I/O

[achris]

Re: Learning the Ins and the Outs of an I/O

Here are a couple options. Either pressing the pulley back into position, or modifying the bracket.

Achris, that is interesting and I never knew that. So alternators monitor battery voltage and adjust output based on that?

Certainly do, otherwise you'd have what happens on the old outboards. Alternator just keeps producing output and the battery voltage can get pretty high. I've personally seen a battery on an old in-line 6 Merc (90hp) at 17 volts... The battery was hot and bubbling, but being as it was a proper marine battery, it was designed to cope with that.... The average car battery would have melted its plate and gone to god by then....

 

[MajBach]

Re: Learning the Ins and the Outs of an I/O

Here are a couple options. Either pressing the pulley back into position, or modifying the bracket.

So to wrap this up...The power steering pulley is definitely out of alignment; the pictures really do not demonstrate it fully. I got the boat in the water and started it up and the squeaking was immediate and louder than it ever was (perhaps because the engine compartment was open) so I took some aim with a can of belt dressing, targeting the pulley face itself and not the belt hoping that if it was not the power steering pulley, any noise reduction from the spray wont be so stark. The moment it hit the pulley, the squealing stopped.
So the manual states I need a tool to align the pulley, but I am having difficulty visualizing how it works. Do I have to pull the pulley off first? There is an allen key bolt (perhaps 3/8") that the pulley is pressed fit onto but of course if I turn this, so does the pulley and I do not see the the assembly move either in or out. I should point out (since the pictures do not make it clear) that the pulley does not appear to be bent or angled, but just sticking out further than the others. When I look at it end-on during operation, there is no wobble.
So how does the pulley work itself out in only 50 hours of running?

The last picture is of the PS pump from the other end where it bolts to the bracket. There seems to be a spacer there?

What does everyone recommend?