35 'Specials' didn't have a tach and the Perkins diesel 35s had a tach drive connection to the engine so no need for a tach drive on the generator for those. I don't know about the Standard Diesel. Or someone may have just swapped in a different generator over the years. I have a 50 that still has the tach in the dash but the generator currently on it has no drive.

Dan
 
If your generator has the three screws and a plate on back of armature you can add the drive. You may have to drill and tap armature to add drive. I've tapped several.I have a TO 35 I'm building and it had the armature threaded but no drive. All I had to do was add drive. The tap is 3/8 x 32 threads. You can go to archives and there is discussion on it with pictures.
 
Well... here we go... seems like HF tacks started with 12 volt system models?? ... so 6 volt tractors 'usually' didn't have a tach? BUT, since all good generators put out 20 or 30 volts... and who knows if that gen came out of a 55 Plymouth? Who really used tacks except big trucks, tractors and few factory muscle cars back then?
Yeah, my Standard engine, and Perkins 3 have the tack cable in the timing, not off the gen... but the 212 Perkins is suppose to have a tack drive alternator... we'd love to find a pallet full of those things huh??
 
I have a 35 Special (one stage clutch) with a tach drive and a tach that works fine. The tach isn"t an indication of Special vs. Deluxe.
 
Tony, as for the tach cable on a standard, don"t ever order one. I"m in the process of sending one back. Ordered 1 for 35 standard petrol and won"t fit on either end but was surprised that it arrived from oversees in just 3 days.
 

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