Hi, '74 Bug here, (UK)
Having problems, starting it. Upon starting the engine will turn and will just whine as if the battery is flat.
The battery is about 80% charge and I've also tested with a known good battery.
The generator, (dynamo) appears to be fine, brushes are good etc...
I've measured the voltage, and it's about 11.5V and about 14.5 V when the engine is running across the terminals. The engine will run (once started) with the battery disconnected.
I've been parking it on a hill every time for about the last month or so and just bump starting it, but that is getting weary now.
I changed the crank pulley 'cos the old one was just eating belts for breakfast. There is now a new pulley and fan belt on the engine, and all appears to be fine there.
As far as I can tell, the generatior is good, the battery is good. The starter is good, and the voltage produced (Across the terminals) is good.
Any ideas?
Thanks all.
Followups set to rec.autos.makers.vw.aircooled