We just picked up a 1500Z 1987 that needs TLC. We bought it right and will bring it back to life. We fixed a problem with the Deutz F5L912, I like this motor. Our problem is with the electrical system. The batteries were hooked up for 24 volt but the starter was a 12 volt, when we tried to start the repaired engine the starter came unglued and sent pieces into the bell housing. After removing the pieces and getting a new starter(only a 12volt available) we wired the starter for 12 volts and fired up the motor. The supplier of the starter told me to change the electrical system to 12 volts on the machine. We would like it to be 12 volt as all the lighting would be easy to get. I would like some tech support. Thanks in advance.
Well that was easy for the supplier to say!!! I don't feel like getting the correct starter so just change your machine to match my starter??? I would have kept looking til i found the right starter, it's not like your looking for a left handed metric crescent wrench, or maybe it is?!? Antique tractors are changed from 6 to 12 volts all the time. This might not be any harder, or it might be a real PITA. The alternator will have to be replaced, that's the easy part. If there are any electronics controlling the drive train then they will need to be a case by case basis. The wiring for lights, fans, alt, and starter are all sized for half the amps (twice the volts), so you may need to use smaller wattage bulbs (led?), live with low fan speed (if it has a heater), and a machine that won't start as cold as it did with the higher voltage. Ask any specific questions, I'll give you a guess.
Thats going to be a ton of work! the actual wires should be ok, but every, guage, light bulb, electric motor ie heat wipers etc will all have to be changed. It will cost a fortune.
How much it costs depends on how much he wants to work. The heater blower and wipers will work as they are, just at low, lower and lowest speeds. The gauges??? Might even be able to just swap out the voltage regulator if the alternator had already been changed to a Delco.
After getting some input my thought was to install a new key switch at 12 volts feeding the starter from the first battery and leaving the rest of the unit at 24 volt as it was.
What all is there for electrical accessories? especially, is there any electrical drivetrain controls? If you just have lights, fan, wipers, then the alternator and fuel injection solenoid should be easy.
Sounds to me that maybe you need to keep the machine 24V and change your parts supplier! Many early diesel trucks had no end of trouble starting with 12V starters and were really only reliable in cold weather when their owners changed to 24V starters, (using a series/parallel relay). I think you would be far better served by sourcing the correct starter.
I had a new key switch (12 volt) and installed it for only the starter off the first battery in the series. We left the old switch in place to run the accessories at 24 volts. This seems to work without having any drain on the batteries.
I would have to buy a 12 volt starter and have it rewound to 24 volts. We tried a group of suppliers they don't have this one available. Thanks for the input.
Try this one. http://www.amazon.com/STARTER-MITSUI-DEUTZ-ENGINE-F3L912-BF6L913/dp/B0094BNPDU Or this one http://www.ebay.com/itm/24V-STARTER...12-F4L912-F5L912-F6L912-BF6L913-/400317146460