belt change Mercruiser 120

[captainnate]

I know there are no dumb questions, just dumb people, right? I think I might be one of those. In changing the alternator belt on my 72 merc 120 (sn 3331071) I moved the top pulley slightly; does this matter? Was I suppose to mark it or something. Somehow I thought maybe the valves might not be aligned because I moved the pulley slighty. On the other hand it doesn't seem right, because that belt must be able to slip. Thanks.

 

[Alumarine]

Re: belt change Mercruiser 120

Nothing to worry about. That belt just drives the water pump and alternator.

 

[captainnate]

Re: belt change Mercruiser 120

Thank you for the response, marc c. I obviously have plenty to learn.

 

[captainnate]

Re: belt change Mercruiser 120

how do you know if the tension is correct?

 

[achris]

Re: belt change Mercruiser 120

how do you know if the tension is correct?

On the longest run between pulleys, just push the belt with about 10lb of pressure, belt should move about 1/2"

Chris.....

 

[captainnate]

Re: belt change Mercruiser 120

thank you