Sparky242 Posted June 16, 2019 Report Share Posted June 16, 2019 Hi everyone I have a 2000 VNL 610 with a Detroit S60 engine and the alternator was not putting out any voltage so I ordered a new alternator and installed it and connected it the same way as the old one and the new alternator is putting out 16.8 volts. Is there an adjustment I need to make or am I missing something, I believe it has an internal regulator but not 100% sure Thanks for any ideas Stan 2000 Volvo VNL 610 2011 Cedar Creek 36RE Link to comment Share on other sites More sharing options...
Steve from SoCal Posted June 16, 2019 Report Share Posted June 16, 2019 Is the sense wire connected and if so is the connection good? The voltage you are reading is from where to where? Steve 2005 Peterbilt 387-112 Baby Cat 9 speed U-shift 1996/2016 remod Teton Royal Atlanta 1996 Kentucky 48 single drop stacker garage project Pulls like a train, sounds like a plane....faster than a Cheetah sniffin cocaine. Link to comment Share on other sites More sharing options...
Jaydrvr Posted June 16, 2019 Report Share Posted June 16, 2019 Sounds like the new one has a battery sense terminal that needs connected. If it isn't connected to the battery to read its condition, it'll typically run wide open. Check the literature that came with the new alternator. If that's the case, you can run a dedicated line to the batteries, which is optimal, or you can just run a jumper to the positive terminal. Either way, there should be a fuse in the line. Jay Link to comment Share on other sites More sharing options...
Sparky242 Posted June 16, 2019 Author Report Share Posted June 16, 2019 Would the battery sensing wire go to the 4th terminal? there was no wire on terminal 4 on the original alt just a big positive wire, a small wire(I think that goes to the interment cluster but maybe not) and a big negative wire to the frame of the alt. I measured the voltage at the batteries and at the alt and both said 16.8 The small wire also had 16.8 volts. the gauge said 14.3 when I started the truck. I got out to look everything over and when I got back in the truck the gauge said 16.8 There was no information in the box and the auto parts store took the box for the core 2000 Volvo VNL 610 2011 Cedar Creek 36RE Link to comment Share on other sites More sharing options...
GlennWest Posted June 16, 2019 Report Share Posted June 16, 2019 When I replaced mine it had the sensor wire stud also. It was not hooked up when I replaced it and was burnt off. Someone had put it on wrong terminal at battery. Replaced ring on wire and connected it. It would charge high like yours until I connected that sensor wire. Got my alternator from O Rileys. 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
Jaydrvr Posted June 16, 2019 Report Share Posted June 16, 2019 4 hours ago, Sparky242 said: Would the battery sensing wire go to the 4th terminal? there was no wire on terminal 4 on the original alt just a big positive wire, a small wire(I think that goes to the interment cluster but maybe not) and a big negative wire to the frame of the alt. I measured the voltage at the batteries and at the alt and both said 16.8 The small wire also had 16.8 volts. the gauge said 14.3 when I started the truck. I got out to look everything over and when I got back in the truck the gauge said 16.8 There was no information in the box and the auto parts store took the box for the core The original alternator may well have not had the sense terminal. Mine didn't until a replacement about ten years ago. If you can share the info about the alternator, I imagine we'll be able to find out which terminal is which. Hard to say without knowing specifics. You don't want to run voltage that high for long, or you'll fry the batteries. Jay Link to comment Share on other sites More sharing options...
Sparky242 Posted June 17, 2019 Author Report Share Posted June 17, 2019 I believe the Delco-Remey alt that was on the truck was possibly the original alt, there are three terminals on the new Wilson alt just like the old one, one big one for the positive wire and two small terminals next to the positive terminal. A small wire is connected to the terminal farthest from the positive terminal , the middle terminal was not used. The ground wire is connected to the alt frame. I think the middle terminal might be for a battery sensing wire but I don't want to connect it until I know for sure. I think the Delco may have had an internal battery sensing connection. Thanks Stan 2000 Volvo VNL 610 2011 Cedar Creek 36RE Link to comment Share on other sites More sharing options...
Jaydrvr Posted June 17, 2019 Report Share Posted June 17, 2019 1 minute ago, Sparky242 said: I believe the Delco-Remey alt that was on the truck was possibly the original alt, there are three terminals on the new Wilson alt just like the old one, one big one for the positive wire and two small terminals next to the positive terminal. A small wire is connected to the terminal farthest from the positive terminal , the middle terminal was not used. The ground wire is connected to the alt frame. I think the middle terminal might be for a battery sensing wire but I don't want to connect it until I know for sure. I think the Delco may have had an internal battery sensing connection. Thanks Stan If you look up the model number at Delco, it'll give you the details for connecting it. Jay Link to comment Share on other sites More sharing options...
Steve from SoCal Posted June 17, 2019 Report Share Posted June 17, 2019 The sense wire goes to the far terminal, Here is a link to answer some questions http://www.delcoremy.com/Documents/Alternator-Instruction-Sheets/INSTALLATION-INSTRUCTIONS-33SI,-34SI,-35SI-36SI Steve 2005 Peterbilt 387-112 Baby Cat 9 speed U-shift 1996/2016 remod Teton Royal Atlanta 1996 Kentucky 48 single drop stacker garage project Pulls like a train, sounds like a plane....faster than a Cheetah sniffin cocaine. Link to comment Share on other sites More sharing options...
Sparky242 Posted June 30, 2019 Author Report Share Posted June 30, 2019 Update the alternator was bad, exchanged it for another new one, wired it the same way and it works great. so what I had was three wires a big positive wire a big negative wire and a small wire with the #14 on it connected to the I terminal, traced it out and it went to the gauge cluster Thank You for all you ideas Stan 2000 Volvo VNL 610 2011 Cedar Creek 36RE Link to comment Share on other sites More sharing options...
rickeieio Posted June 30, 2019 Report Share Posted June 30, 2019 Where did you source the bad alternator? I've had bad experience with rebuilds from the discount auto stores (Auto Zone, O'Reilley's, Advance, etc. I once drove 50 miles to put a rebuild on daugher's car, late on a Sunday night, in blowing snow, only to have the "new" unit go up in smoke within 30 seconds of start-up. Had to squeeze 5 college girls, plus wife and myself, in our crew cab. Took the offending piece back and got one from a source I trust. KW T-680, POPEMOBILE Newmar X-Aire, VATICAN Lots of old motorcycles, Moto Guzzi Griso and Spyder F3 currently in the front row Young enough to play in the dirt as a retired farmer. contact me at rickeieio@yahoo.com Link to comment Share on other sites More sharing options...
Sparky242 Posted July 1, 2019 Author Report Share Posted July 1, 2019 Was a Wilson alternator from the local Auto Value Auto Parts store. The replacement was also a Wilson from the same store, Hopefully it holds up 2000 Volvo VNL 610 2011 Cedar Creek 36RE Link to comment Share on other sites More sharing options...
GlennWest Posted July 1, 2019 Report Share Posted July 1, 2019 I got a Wilson from O'Riely. Not gave a minute problem. 2003 Teton Grand Freedom towed with 2006 Freightliner Century 120 across the beautiful USA welding pipe.https://photos.app.goo.gl/O32ZjgzSzgK7LAyt1 Link to comment Share on other sites More sharing options...
Sparky242 Posted July 2, 2019 Author Report Share Posted July 2, 2019 That's good news, I think the first one I had was just a fluke bad one🤞 2000 Volvo VNL 610 2011 Cedar Creek 36RE Link to comment Share on other sites More sharing options...
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