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Author Topic: New Member seeking alternator input  (Read 393 times)

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mainesail

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Re: New Member seeking alternator input
« Reply #15 on: January 25, 2019, 09:00:06 AM »


Ken:  I've not been able to find the 8MR2091KSS anywhere. 

The 8MR2049XX or 8MR2091KSS or 8MR2091XXX, & other similar suffix units, are just one of the many 8MR units that Leece-Neville has discontinued. You also need to be careful with some of the 51A units as the internal regulators on some, such as the 8RG2010, were factory set at 15.0V. Components are avaialble to build them, but in the end they cost about the same as a higher amperage model. I just ran the numbers on a 2" foot 72A, with the LN 8RG2043 adjutable regulator, pulley, 10mm to 3/8" sleeve, etc. and it comes in at about $296.00 but components such as stator, rotor, negative rectifier and front & rear frame are not currently in our in-stock..
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KWKloeber

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Re: New Member seeking alternator input
« Reply #16 on: January 25, 2019, 10:04:38 AM »

Patch man

QUOTE
<<As for the re-manned Motorola 2049K's with the external sense wires, if these are preferred to the other 2 options >>

Again, the 2049K alt is INTERNAL, not external sensed (unless the alt is converted to external regulator.)



Start at NAPA -- it lists all the Wilson remans for the LN alts, including the -KSS.
Go to www.napaonline.com and plug in the LN model #.  If it doesn't come back, go to the Wilson site, www.wilsonautoelectric.com/SearchPart  plug in the LN model and get the Wilson # to plug into NAPA.  That's a guide - NAPA is higher $$'d.  Rather than chase tails in circles with models -- once you boil down to which (if any) p/n you want - let me know, I'll pass you the best Wilson source I have for that (will sell it less noticeably less $$ than NAPA.)   Wilson doesn't sell direct, but again the nice thing is that you should be able to get the unit shipped that tested out closest to the setpoint you want.  for example, I got one off the Wilson warehouse shelf that was 14.1, instead of 13.8.

-k
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Patches

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Re: New Member seeking alternator input
« Reply #17 on: January 28, 2019, 07:10:32 AM »

Update:

Based on Ken's helpful reply, I chased down the Wilson remanufactured units through the NAPA and Wilson websites.  I learned the closest Napa unit to me was in Central Islip, NY, and I live in the Seattle area.  I also learned that it shipped without a fan or pulley.

I went back to Bobby at ASE in Portland and we identified the Arco # 60125 as a direct replacement for the Prestolite/LN 8MR2091KSS.  Like that alternator, it has a terminal for the external sense wire, but also comes new with the fan and pulley.  Same 2" foot, and small frame profile.  Bobby says the key difference are a 55amps, a 17mm shaft and 3" pulley.  ASE prices these at $166.95, and I had it by Saturday afternoon.  It looks to be very well made.

I'm waiting for a couple of parts to re-install my exhaust manifold before I bolt on the new alternator and wire it up.  At the time I will provide my final thoughts, including if a new belt is required because of the slightly larger pulley.

Many thanks to the those who helped to steer me the right way during this process, especially Ken, Mainesail and Stu. Your input saved me valuable time, and taught me a lot.

Patches
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KWKloeber

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Re: New Member seeking alternator input
« Reply #18 on: January 28, 2019, 07:43:15 AM »

Patches

Deva vous.
I was just posting that one supplier in AZ sells the Leece kss Wilson reman for 114 (+ 40 refunded core charge.). Drop ship $ from Wilson is reasonable.

I know Wilson says it ships w/o a pulley, but have always received the OEM pulley with the Leece remans.

What setpoint did the new one test out at? 
JMHO but personally I would have coupled the external sense with a 14+ setpoint (if Wilson had one on the shelf.)

The pulley will need a tach recal.
Id use a Dayco Top Cog belt when you reinstall!

Keep us updated.  :thumb:
« Last Edit: January 28, 2019, 07:44:32 AM by KWKloeber »
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Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain
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