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Yanmar 3YM20 belt change

5.6K views 1 reply 2 participants last post by  overbored  
#1 ·
Having problems changing the water pump and alternator belts. Mainly just getting the alternator belt off. What bolts do I have to loosen?? Here is a pic of where I am now. The lower adjustment bolt is loose. What am i missing?? I plan on getting a crescent wrench and trying to loosen the bolt on top of the alternator is that what I need to do??? Not used to working on boat diesels lol. Cars seem much more logical.

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#2 · (Edited)