[T3] Endlesss Problems...another update...

[Jim Adney]

On 11 Dec 2010 at 23:35, Keith Park wrote:

> Ya know, even when I had the T4 alternator on there it still didn't charge
> at idle, didn't kick in till about 1500RPM which is about where the
> generator starts to kick in..

That indicates that you needed a smaller alternator pulley. An 
alternator should be run at faster shaft speeds than a generator. 
That's because, unlike a generator, there's no speed above which 
alternator output falls off. So you can set the pulley ratios to give 
you charging at idle.

With a generator you have to compromise on the pulley ratio, because 
if you make the ratio too high, output at highway speeds will 
actually fall off.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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