More alternator questions

[Gregory OConnor]

Don, are all alternators designed to spin at the same RPM? if they
are then swapping the same pully will do. I wonder if pully/alt
swaps on BlueThunder in the past leave you with rpm issues? I'll try
and measure my drive pully and alt pully today and post.
GregoryO'Connor
94ptRomolandCa

--- In WanderlodgeForum@yahoogroups.com, "Don Bradner"
wrote:
>
> I decided to replace both of my alternators with a new, matched
pair. I still haven't pulled the one by the bumper, but I know the
other was only 130 amps and I want to get back to spec.
>
> My choice was the Leece-Neville triple-nickel common truck
alternator in the 160-amp version, 110-555JHO (also known as
8LHA2070VE). I debated going up to the latest version, which is a 170-
amp 110-775 that has a higher heat rating. Prior to 2004, the 555 was
rated to 200 degrees, while the 555JHO is rated to 220 degrees and
the new 775 is rated to 230 degrees. I have some suspicion that
failures may partly be due to the high heat of the 8V92, but I'm
thinking the extra 20 degrees may be enough, and the price difference
for 10 degrees more is too much.
>
> Online from http://www.fleetsource.com the 555JHO is $171 plus shipping. I
prefer to buy local if they are in the ballpark, and my local auto-
electric folks came in at $211 which was good enough for me. They hit
three of their sources, all of whom had it in stock, before arriving
at that as the best price; my tellling them that Fleetsource was $171
probably helped them not stop at the first one.
>
> They should be here in a couple of days.
>
>
> Don Bradner
> 90 PT40 "Blue Thunder"
> Eureka, CA
>