Generator to alternator swap 4 d19
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=23644
Printed Date: 22 Feb 2025 at 11:36am
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Topic: Generator to alternator swap 4 d19
Posted By: bwp
Subject: Generator to alternator swap 4 d19
Date Posted: 07 Jan 2011 at 10:40pm
I was thinking about swapping out the old generater for an alternater. Just wandering if anyone knows which model/brand alternator would be the best fit for a D19. Thanks.
Brad
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Replies:
Posted By: Coke-in-MN
Date Posted: 07 Jan 2011 at 10:47pm
Cheapest one was the Delco 10SI , 1 wire hook up as is self contained reg and all. Now some new units are smaller and just as good. Use to be you could find a 10SI for under $15.00 just about anywhere. Nice thing with them is the pulley from your gen fits on them as shaft is same size.
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Posted By: Gerald J.
Date Posted: 07 Jan 2011 at 11:55pm
The one wire version tends to need to be spun up fairly fast to get them to start charging, which is easier if you wire them with three wires anyway. On my conversion I found a smaller wide pulley in the electric shop's catalog that keeps the engine speed to about 1650 rpm to get the one wire alternator started. If I had used the generator pulley it would have taken 2200 or more engine rpm for that.
Gerald J.
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