Gallery, Projects and General > The Design Shop
Perkins 4 Cylinder diesel model no 4107 or 4108..
John Hill:
Some tractors used two 12v batteries for 24V starting and 12v lighting etc.
The batteries were connected in series of course with the centre point grounded so some of the lights etc were negative earth and some positive earth. A single 12V alternator was used but without a full diode bridge so that each battery was charged by half wave rectified power. The starter had to be modified to isolate the ground end of the coils which was connected instead to the negative battery terminals.
John Stevenson:
--- Quote from: Manxmodder on January 20, 2014, 11:17:03 PM ---
If a serviceable 3.152 or 4.236 was available I'd be tempted but these days there are plenty of super reliable car diesel engine units available from the breakers yard such as the Peugeot 1.9 or 2.0 litre units,which incidentally, Perkins have had a role in at the consultancy and design stages.
--- End quote ---
So Peugeot listened to what Perkins had to say, then ignored them and went on to build a reliable engine that starts ? :lol:
John Hill:
Further to the 24V starting, if you dont need 12v for anything you can just add the extra battery and change the regulator.
Noitoen:
Old topic but a valid solution for common problem. For those hard to start 12v starter diesel engines, there is a relatively simple solution. Without changing the electrics, a second battery and a series/parallel relay will do the trick. http://www.genr8.net.au/uploads/file/47.pdf The batteries are momentarily connected in series just for the starter motor that will handle the extra power without problems. After starting, they get connected back in parallel to receive 12v charge.
vtsteam:
I've got to figure out something for a starter for this baby.
Hand cranking two 24" CI flywheels after applying a torch to the intake manifold in winter gets old fast.
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