Shouldn't a new GL`1500 alternator spin free by hand, right out of the box, without any drag, or at
least with only slight drag (brushes) not really very noticeable.
New alternator spin freely question?
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- MikeB
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Re: New alternator spin freely question?
Yes, of course. If it is an aftermarket alternator, as in off of Ebay, I would be highly suspect of it.samwing1500 wrote: ↑Sun Jan 17, 2021 3:00 pm Shouldn't a new GL`1500 alternator spin free by hand, right out of the box, without any drag, or at
least with only slight drag (brushes) not really very noticeable.
MikeB
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
Industrial Maintenance Tech - 1992 - 2014
Retired in Tacoma, WA
1998 - GL1500 w/184,500 miles ~ 2017 - GL1800 w/13000 miles
USAF Avionics Communications Tech - 1968 - 1986 / Flight Engineer C-130E - C-141B - 1986 - 1992. Retired
Industrial Maintenance Tech - 1992 - 2014
Retired in Tacoma, WA
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Re: New alternator spin freely question?
Thanks for the reply.
Sam
2000 GL1500 SE
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Re: New alternator spin freely question?
They have more drag than just brushes. There is a seal and the bearings too. When you grab and twist it you are also exerting torque to spin a bit of weight of the rotor built up of laminations and windings which make it an electromagnet. If you're just slowly turning it not so much. but if you're hold it in one hand and giving it a twist to see it spin, you gonna feel the weight being spun up.
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Re: New alternator spin freely question?
Ok. Thanks. I was holding it in one hand and turning the 4 blade impeller with my
other hand and there is considerable drag. Very very noticeable even if just rotating
it slowly. Of course it won't spin at all. I am returning it for a replacement. There is
too much drag to make me comfortable installing it.
other hand and there is considerable drag. Very very noticeable even if just rotating
it slowly. Of course it won't spin at all. I am returning it for a replacement. There is
too much drag to make me comfortable installing it.
Sam
2000 GL1500 SE
2000 GL 1500 Trike
2000 GL1500 SE
2000 GL 1500 Trike
- newday777
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Re: New alternator spin freely question?
What did you get for an alternator?samwing1500 wrote: ↑Sun Jan 17, 2021 10:39 pm Ok. Thanks. I was holding it in one hand and turning the 4 blade impeller with my
other hand and there is considerable drag. Very very noticeable even if just rotating
it slowly. Of course it won't spin at all. I am returning it for a replacement. There is
too much drag to make me comfortable installing it.
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Re: New alternator spin freely question?
newday777
I went with a new Compu Fire. Very tight to get it
in the frame but it's in there.
I went with a new Compu Fire. Very tight to get it
in the frame but it's in there.
Sam
2000 GL1500 SE
2000 GL 1500 Trike
2000 GL1500 SE
2000 GL 1500 Trike
- newday777
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- Motorcycle: 2008 Cabernet Red. Level 4
1983 GL1100A Wineberry 36,000 miles
1975 CB750 K5 Planet Blue 7,800 miles
1976 CB750 K6 Anterris Red 25,000 miles
Past rides
1999A Restored from PO neglect & sold at 19,000 miles
1999SE Totaled by cager at 105,000 miles
Re: New alternator spin freely question?
Yes I put a few in, my own and others, and yes they are a tight fit.samwing1500 wrote: ↑Tue Feb 02, 2021 9:37 pm newday777
I went with a new Compu Fire. Very tight to get it
in the frame but it's in there.
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Re: New alternator spin freely question?
Just for comparison, here is a pic of stock (top) alternator and the new (lower) Compu Fire installed.
Sam
2000 GL1500 SE
2000 GL 1500 Trike
2000 GL1500 SE
2000 GL 1500 Trike