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That's one way to do it, but if you have an hour meter it's not running.
If you have an external regulator, try the Small Engine Mode idea.
But the real gist of my message to you is that if you have a 105 A alternator now, putting a 125 on it will not necessarily increase the load on the pulley and belt, since the amount of charge is based on the house bank requirements and acceptance.
We've fund that even with our nominal 400 ah house bank at 50%, the 100A alternator is only able to get up to 60A charging due to bank acceptance, which Maine Sail has noted is a certain percentage of the bank ah capacity - I forget what it is specifically, sorry.
So you'll essentially have the same belt load and output, given the same size house bank, which is why it's a good idea to have a larger size alternator, so it works "less hard."
Belt squeal could be from a loose belt, misaligned one, or just an old one. I put a new belt on recently and it made a world of difference.
Stu Jackson, Catalina 34, 1986, M25 engine, Rocna 10 (22#)
Last edited by Stu Jackson; 10-09-2011 at 07:34 PM.