Richard
All the specs for the charging system are on pg 20 of the Workshop
Manual, General Data Section.
@ 75 degrees it should run 14.1 to 14.9 v
Stock Autolite Alternator is rated at 38 amps at 15v.
Any voltage over 15v would be overcharging or a constant 38 amps at any rpm
with a good battery that is fully charged would be overcharging.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of Richard
Sent: Sunday, November 01, 2009 6:42 PM
To: Tiger List
Subject: [Tigers] charging question
'67 Tiger MKII alternator charging system. I have made the tests that I
found on the internet (with some conflicting information) and have replace
the voltage regulator with a new one from NAPA. Taking a base line reading
on the battery before the test I get 12.9 volts. Ambient temperature this
morning was about 75 degrees. When running at normal operation temperature
and rpm's at or above 1500 the battery voltage reads a consistent 14.8
volts, and at idle dropping down to 14.5 volts. Is this normal or is it
considered an overcharging condition? If so what would be the likely cause,
everything I checked seems to be close to the specs I can find.
I can find no specs in the workshop manual as to what is nominal for this
alternator system.
Thanks for the help
Richard
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