The diameter
of the alternator pulley is very important. In order to insure a strong output from the alternator
at idle and low rpms, it is important that the alternator
pulley be at or close to (2.5")
in diameter. Stock generator pulleys
are too large in diameter to be used on alternator applications.
The increased diameter will reduce the output of the alternator
by 25% at idle and low engine rpms.
All
of Fifth Avenue’s alternators come with the correct diameter and width
of drive pulley installed based on your application.
What
about mounting the alternator?
Fifth
Avenue offers a wide variety of mounting brackets for
their alternators. Some of the more popular mounting bracket
kits, include those for 1937 thru 1962 GM cars and trucks.
Also, Ford cars and trucks, built between 1928 and 1953. Fifth Avenue also offers alternator pulleys and mounting
brackets for commercial and industrial applications such
as forklifts, farm tractors,
irrigation motors, and vintage firetrucks.
Do
any changes have to be made to the wiring harness?
No.
The alternator requires only a simple two wire hook-up
using the “Batt” wire from the old voltage
regulator and the yellow wire provided with the new
6-Volt Alternator. A complete instruction guide is
provided with each alternator purchase which explains
the mounting and wiring procedures.
What
about the quality of Fifth
Avenue’s alternators?
Fifth
Avenue designs and manufactures their own
alternators, here in the USA, using only those parts
meeting the current ISO 9000 quality control standards.
ISO 9000 quality control standards are the same standards
required by the new car manufacturers,
and are recognized throughout the world.
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Does the new 6-Volt Alternator
carry a guarantee?
Yes.
Each alternator is manufactured here in the U.S.A. and is guaranteed for a full 24 months from
date of purchase. This guarantee includes parts and labor to the alternator. Each alternator is run tested under working
load conditions before shipment to ensure you receive a top
quality product that out performs its rating.
How is a
Fifth Avenue Alternator
different from one I can buy locally?
When
modern alternator charging systems were introduced in the
1960’s most automobile engines had idle speeds of
1200 rpms or greater, so this became the “cut-in” speed
for “modern” alternators. By contrast, vintage
cars typically have idle speeds of 800 rpms or less, and
some as low as 450 rpms. The alternator you install on
your vintage vehicle needs to begin charging at engine
idle speed, just as it would for a modern application.
Fifth
Avenue’s alternators are able to do just that.
By using specially wound rotors and stators, Fifth Avenue’s
alternators are able to develop a strong 30 amp output at
idle and low engine rpms, while still providing a strong 60
amp output at highway speeds. The result is an alternator
that can provide twice the amperage output when compared to
an original generator type charging system.
Also
important, Fifth Avenue used their own design of specially
wound “Delta Type” stators. In this advanced
stator design, current is allowed
to flow in all three stator windings at the same time. The result is a stronger,
more reliable output current, at idle and low engine rpms,
with less chance of damage from excessive heat. The less
expensive, and more common “Y-design” stators
allow current flow in only two of the windings at
any given time and are less resistant to excessive heat. |
