<VV> BEST ANSWER SO FAR

[N2VZD at aol.com]

The 2 alternator (yes you heard me) mounting bolts are a non issue.  Hire a 
mechanic if you can't deal with them. Or invest in some better  tools.
Timothy Shortle in Durango Colorado 81301
Most of the time it because the turkey roaster ended up at the rear  most 
position on the screw holes. No big deal to reach in there with a pry bar  
and slightly bend the area by the inner bolt. (no one can see there anyway's)  
I use 3/8 stuff , 6" extension wobble type with 9/16 short socket. You can  
do it by feel after a few years at it. Get the inner one out first , then 
the  outer one . loosen the outer one , tip alternator out a little , hang on 
to it  and spin the bolt the rest of the way with your fingers,.so you 
don't damage  anything.
Regards, Tim Colson    http://www.cnycorvair.com/Little_Corvair_Shop.php