On my '84 I added a ground cable from the battery 
lower bolt to the frame and that allowed the (VW 
1.9) stock starter to do the job on my Subaru 
2.2. I used the negative battery cable from the 
donor Subaru so it's good sized.
It has been reported (on this list) that later 
years had a larger (different gauge) starter cable.

Rob
becida@comcast.net

At  4/13/2012 02:32 PM, Chris S. wrote:
>I have been in the same boat for the last 8 
>years with my 84 Westy. I cleaned all grounds, 
>battery cables and so on, with no effect. At 
>this point I am ready to install a second power 
>cable from alternator to starter solenoid hoping it will give more current.
>
>Chris.
>
>Wysłane z iPhone'a
>
>Dnia Apr 13, 2012 o godz. 16:44 Ken Olsen <648.ken@GMAIL.COM> napisał(a):
>
> > I'm pretty baffled. My 85' Westfalia waterboxer has been turning over
> > slowly since I bought it several years ago, but it has finally got to the
> > point of stranding me. It is behaving like a low battery, but I think I
> > have ruled that out.
> >
> > Symptoms:
> > Turns over very slowly, sometimes stopping (or catching?)
> > Runs fine when started.
> > Battery voltage looks good. Jumping doesn't help.
> > Voltage at starter matches battery.
> > Turns over slowly with:
> >    - spark plugs removed.
> >    - fresh battery jumpered directly to starter.
> >    - WITH NEW STARTER INSTALLED!
> >
> > What am I missing?
> >
> > Thanks,
> >
> > Ken in Oregon.