The stock alternator if healthy (?) will deliver 90 amps at just over 12
volts. I've tested a few myself. Output does drop a little when hot but
these things will try until there death. I have tried a number of high
output alternatives over the years including some of the newer compact
units. I now have one of new stlye 200 amp Delco knock offs in the motor
home. Some of these other designs go into limiting modes as they heat up and
the modified high output units that directly bolt in have very poor output
at lower engine speeds and are almost useless for low speed/idle battery
charging or even extended in traffic use as battery power is needed at low
speeds.

The stock alternator will do a more than adequate job charging your house
batteries. If anything get an adjustable regulator and tweak the voltage to
14-14.2.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Rocket J Squirrel
Sent: Saturday, September 22, 2012 3:19 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Alternator continuous-duty rating?

Does anyone happen to know the continuous-duty amperage rating for the stock
kinda alternator found on the 1.9?
--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.