DELCO ALTERNATOR 10SI

[Fuddy Duddy]

Moving on down the line. It's about time I get a working Alternator.
I see in the archives the Delco 10SI Series is suggested as a good
choice for a one wire alternator. Looking at them on Ebay I see they
come in all kinds of amp ratings. What amp should I be looking for?
Stud with the red around it goes to battery? Then what about the
place for a plug with the two prones in it? That for the Ammeter?
DELCO ALTERNATOR 10SI

 

[JMOR]

If you go 1-wire alt, then there is no connection at the 2 spade plug...goes not used. Stud with red washer goes to load side of ammeter. Smallest amp rating will be more than sufficient for your tractor. I'll guess your tractor model:

 

[JCinKY]

When I did my 12V conversion late last year I got a Delco-Remy 10SI from Napa. Cost about $50, for a reman unit. Old recommends a cheap one from Oreilley's.

Mine is a 55 amp 3 wire job.

Yes the red post is the charge stud and thats it if you want a 1 wire. The other two post are for sense current. For a 3 wire, jump #2 stud to big charge post and #1 post is keyed hot. It went to my terminal block on my sidemount, or the ballast on a front mount.

You can buy the specialty plug for about $8 or just grab a few female spades to make your own connections.

Be careful of the 1 wire conversions, they need high RPM before they cut in. The box on mine listed about 1800 rpm before its actually will excite.

http://www.napaonline.com/Catalog/C...-10SI-55-Amp-3-Wire/_/R-RSE2134011_0061454376

 

[JMOR]

I don't care what a fellow chooses to use, 1 or 3 wire, but he should know that a 1-wire isn't just a 1-wire......all are not created equally. There are actually more than a dozen 1-wire regulator designs out there in this world and some need more rpm than others to start charging. Some are almost instant & do not even rely on the output from residual mag to feed the field (diode trio is removed from alt). Further more, when someone says 1800 rpm on the box, don't forget that the alt is well over driven relative to engine speed, so even that isn't far above idle. Only one of my tractors is converted & it is 3-wire, not because it is better/easier, but because that is what I had in my pile of parts. Didn't have to drive to town & didn't have to spend any dollars.

 

[lpgasonly]

Get a 10 amp, it will excite at a lot lower RPM.

 

[souNdguy]

remember.. #1 needs ignition isolation on a gasser.

 

[tracman]

My 8N has a one -wire alternator and I certainly have to bring the RPM up initially to start it charging. My 2N has a three-wire alternator and starts charging when the tractor starts. I think for the N-series tractors a three wire alternator would be a better bet. There is bit more wiring involved but you only have to do it once.

 

[old]

Dude save your self some $$ and trouble. Buy an alternator made to fit a 1980 Chev pick up no power any thing no AC at O'Reilly's/ Cost is around $45 plus a $10 core. That is a simple 3 wire and is easy to hook up. The one wires are problems from the get go and many need high RPM to self excite. Plus the 3 wire at O'Reilly's has a life time warranty so if it stops working cost to replace it is ZERO. I have a 1 wire on one tractor and I hate it and when it stops work altogether it will be replaced with a 3 wire. The 1 wire charges when it wants and then stops again then works again off and on

 

[old]

The O'Reilly's one is around $45 plus core but it has a life time warranty so if it goes bad it is free to replace. Oh and it has a $10 core

 

[mike-ga]

I installed 2-1 wire kits from external_link (I think)last year on an 8n and a Jubilee. They start charging as soon as the tractor starts and work great.

 

[Tom N MS]

Mine too..