Chuck B 2004 Windsor Posted August 8, 2020 Share Posted August 8, 2020 It is easier for members to give a more detailed answer when the OP provides the year, make, and model of their coach. I have been a member of this group since Bill D founded it. On the 2004 Windsor, it takes a special alternator that has a DUVAC provision. It is a known fact that unless you replace your alternator with the EXACT same alternator, you will have the problems you are having. The recommended procedure is to have your existing alternator rebuilt. A lot of members have fell into that pit. I would suggest that you try to get your old alternator back and have it rebuilt. Perform a motor home alternator search on the internet . Link to comment Share on other sites More sharing options...
Onthego Posted August 8, 2020 Share Posted August 8, 2020 Interesting. From Prestolite/Leece-Neville The following instructions are to be used for modifying standard alternators for use with Duvac Systems. http://www.prestolite.com/pgs_support/duvac.php Link to comment Share on other sites More sharing options...
veraken Posted August 9, 2020 Share Posted August 9, 2020 I replaced my 160 amp Leece Neville 2824LC with a 200 amp Delco Remy 28SI. The install was fairly simple, ( I have a side radiator) except on the DR you don't connect the excite wire since it is self exciting. I purchased mine with a extra pulley wheel at:https://www.qualitypowerauto.com/catalog.php?category=139 I had my old LN rebuilt and carry it as a spare. Link to comment Share on other sites More sharing options...
Ivan K Posted August 9, 2020 Share Posted August 9, 2020 1 hour ago, veraken said: I replaced my 160 amp Leece Neville 2824LC with a 200 amp Delco Remy 28SI. The install was fairly simple, ( I have a side radiator) except on the DR you don't connect the excite wire since it is self exciting. I purchased mine with a extra pulley wheel at:https://www.qualitypowerauto.com/catalog.php?category=139 I had my old LN rebuilt and carry it as a spare. Do you know the voltage reading directly at batteries with it running and does your coach use solid state isolator (diodes)? And does it have a tach wire? Link to comment Share on other sites More sharing options...
Chuck B 2004 Windsor Posted August 9, 2020 Author Share Posted August 9, 2020 If one does not know what to do or expect, and the tech doing the work does not either, one is left with additional problems. Link to comment Share on other sites More sharing options...
veraken Posted August 9, 2020 Share Posted August 9, 2020 5 hours ago, Ivan K said: Do you know the voltage reading directly at batteries with it running and does your coach use solid state isolator (diodes)? And does it have a tach wire? With the engine running I get @14 V. To my knowledge, I do not have solid state diodes. The tach wire is attached to a terminal on the back of the alternator. Link to comment Share on other sites More sharing options...
Ivan K Posted August 10, 2020 Share Posted August 10, 2020 5 hours ago, veraken said: With the engine running I get @14 V. To my knowledge, I do not have solid state diodes. The tach wire is attached to a terminal on the back of the alternator. Thank you, I suppose you don't have the solid state isolator in your case and that changes things. Link to comment Share on other sites More sharing options...
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