BritBike Forum logo
BritBike Sponsor BritBike Sponsor BritBike Sponsor
BritBike Sponsor

BritBike Sponsor

BritBike Sponsor
BritBike Sponsor BritBike Sponsor BritBike Sponsor
JWood Auction JRC Engineering dealers JWood Auction
Home | Sponsors, Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons, "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Photo posting tutorial

Member Spotlight
dirtymartini
dirtymartini
Harveys Lake, PA. USA
Posts: 421
Joined: July 2009
Show All Member Profiles 
Shout Box
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
Who's Online Now
205 registered members (21inGoldie), 1,724 guests, and 563 spiders.
Key: Admin, Global Mod, Mod
Newest Members
iansouthoz, Lightning Sim, Simon.Holyfield, Bushcreature, Gary Shackleton
10035 Registered Users
Top Posters(30 Days)
Lannis 144
kommando 105
Stuart 64
Popular Topics(Views)
477,449 mail-order LSR
Forum Statistics
Forums33
Topics65,727
Posts635,325
Members10,035
Most Online3,995
Feb 13th, 2017
Like BritBike.com on Facebook

Previous Thread
Next Thread
Print Thread
Rate Thread
any suggestions for an A65 replacement alternator #532508
03/12/14 11:04 am
03/12/14 11:04 am
Joined: Jan 2002
Posts: 1,132
hamden, ct.
hacksaw Offline OP
BritBike Forum member
hacksaw  Offline OP
BritBike Forum member
Joined: Jan 2002
Posts: 1,132
hamden, ct.
seems like prices are all over the lot. 1965T. thanks.

Support Your #1 BritBike Forum!
Membership Type! Free
Member
Premium
Member
Premium Life
Member
Vendor
Member
Site
Sponsor
Recognition No Premium Member Premium Life member (5 years) Vendor Member Site Sponsor Membership
Post commercial threads No No No Yes Yes
Custom title No Yes Yes Yes Yes
Upload avatar & photos No Yes Yes Yes Yes
Link avatar & photos Yes Yes Yes Yes Yes
Private Message Storage: 10 100 100 100 100
Length of signatures 255 600 600 600 600
Removes this very advert island between post 1&2 No Yes Yes Yes Yes
Price Free $12.90/year $105.00 No End
$55.00/5 years
$210.00/year
($17.50/month)
Email
Click on button >>
  Premium Member Premium Life member Vendor Member Site Sponsor Membership
Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532515
03/12/14 11:20 am
03/12/14 11:20 am
Joined: Sep 2002
Posts: 7,812
Seattle
Alex Offline

BritBike Forum member
Alex  Offline

BritBike Forum member
Joined: Sep 2002
Posts: 7,812
Seattle
I've got a good used 3-phase Lucas alternator in my Royal Star with a podtronics. After roasting one podtronics by mounting it under the seat, the new mounting location under the steering damper where the later zeners were has it charging at idle and keeps the halogen headlamp lit even in stop-and-go traffic. I'm loving this setup.


A smattering:
'53 Gold Flash
'67 Royal Star
'71 Rickman Metisse
'40 Silver Star
'37 Rudge Special
sixtyseventy Lightboltrocket road racer...and many more.
Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532519
03/12/14 11:40 am
03/12/14 11:40 am
Joined: Jun 2002
Posts: 9,463
Scotland
S
Stuart Online content
BritBike Forum member
Stuart  Online Content
BritBike Forum member
S
Joined: Jun 2002
Posts: 9,463
Scotland
Hi,

What've you got and what do you want?

. If it's still got the 3-wire single-phase stator, Sparx do an encapsulated replacement.

. Above that, the 2-wire RM21 (10.5A @ 5,000 rpm) is available from LAP (Lucas Aftermarket Products), Sparx and Wassell have copies.

. Above that again, the high-output 3-wire 3-phase RM24 (14.5A @ 5,000 rpm) is available from LAP, Sparx has a copy, Wassell has an alleged 20A 2-wire, single-phase stator, but don't appear to mention the rpm where this wonderful 20A is generated (not a lot of use @ 10,000 rpm grin ).

Ime and mho, you can never have too many Amps.

Hth.

Regards,

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532523
03/12/14 11:52 am
03/12/14 11:52 am
Joined: Dec 2002
Posts: 3,235
arkansas
L
leon bee Offline
BritBike Forum member
leon bee  Offline
BritBike Forum member
L
Joined: Dec 2002
Posts: 3,235
arkansas
Hack for electrical stuff I like an eBay seller called racingnorton who is also a real guy named
Carl Hokanson. I don't think he tries to get rich off of us, email is chokanson at aol dot com. I'd check with him.

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532542
03/12/14 2:45 pm
03/12/14 2:45 pm
Joined: Dec 2002
Posts: 406
Chelmsford MA
M
MarcB Offline
BritBike Forum member
MarcB  Offline
BritBike Forum member
M
Joined: Dec 2002
Posts: 406
Chelmsford MA
I've use a Sparx 3-wire set-up for over 10 years (holy crap, even longer than that) and it's been very good, except they had issues with the rotor not fitting the shaft early on. Because of this, I use a Lucas rotor and it's been trouble-free the whole time.

I'll second the mention of Carl Hokanson. I've dealt with him in the past and he is very reliable.

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532627
03/12/14 11:57 pm
03/12/14 11:57 pm
Joined: Jan 2002
Posts: 1,132
hamden, ct.
hacksaw Offline OP
BritBike Forum member
hacksaw  Offline OP
BritBike Forum member
Joined: Jan 2002
Posts: 1,132
hamden, ct.
thanks everybody!
I haven't pulled it apart yet. its not charging so I just assumed its a bad alternator, but I realize It could be broken wires as well as anything else. i'll report back.

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532641
03/13/14 4:53 am
03/13/14 4:53 am
Joined: Jun 2002
Posts: 9,463
Scotland
S
Stuart Online content
BritBike Forum member
Stuart  Online Content
BritBike Forum member
S
Joined: Jun 2002
Posts: 9,463
Scotland
Hi,

Originally Posted By: hacksaw
its not charging so I just assumed its a bad alternator, but I realize It could be broken wires as well

Also don't forget the rectifier or rect./reg., it could've broken. frown

Hth.

Regards,

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #532729
03/13/14 5:29 pm
03/13/14 5:29 pm
Joined: Oct 2008
Posts: 4,877
Gnashville
DavidP Online content

BritBike Forum member
DavidP  Online Content

BritBike Forum member
Joined: Oct 2008
Posts: 4,877
Gnashville
The last time I had the original set up, I used to replace the rectifier every couple of years. Never fried a zener.

Recently found an RM24 on fleaBay, paired with a 200W rect/regulator from some Yamaha it works great.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
Re: any suggestions for an A65 replacement alternator [Re: Stuart] #532785
03/14/14 4:38 am
03/14/14 4:38 am
Joined: Aug 2011
Posts: 91
UK
T
TripleTown Offline
BritBike Forum member
TripleTown  Offline
BritBike Forum member
T
Joined: Aug 2011
Posts: 91
UK
Originally Posted By: Stuart
Hi,

What've you got and what do you want?

. If it's still got the 3-wire single-phase stator, Sparx do an encapsulated replacement.

. Above that, the 2-wire RM21 (10.5A @ 5,000 rpm) is available from LAP (Lucas Aftermarket Products), Sparx and Wassell have copies.

. Above that again, the high-output 3-wire 3-phase RM24 (14.5A @ 5,000 rpm) is available from LAP, Sparx has a copy, Wassell has an alleged 20A 2-wire, single-phase stator, but don't appear to mention the rpm where this wonderful 20A is generated (not a lot of use @ 10,000 rpm grin ).

Ime and mho, you can never have too many Amps.

Hth.

Regards,


+1, regarding what do you want? It's a preference thing and probably best to get some independent advice.
LAP, Sparx and Wassell all make 3-wire 3 phase 12V RM24 LU47244 (14.5A) stator, while LAP and Wassell also make a lower output (10.5A) RM24 LU47252 3 phase unit.
All available in the US.

100% need to check the rectifier/regulator. Can't go wrong with Podtronics which are readily available.

Good luck!

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #534318
03/22/14 11:38 pm
03/22/14 11:38 pm
Joined: Jan 2002
Posts: 1,132
hamden, ct.
hacksaw Offline OP
BritBike Forum member
hacksaw  Offline OP
BritBike Forum member
Joined: Jan 2002
Posts: 1,132
hamden, ct.
well I finally pulled the primary cover.
I find I have a 2 wire system.
the Lucas rotor doesn't wobble, but it has maybe an inch in rotational play.
the alternator looks old, but intact. the encapsulating material is pock marked and a bit weird looking, but seems intact.
except where there is a plastic housing for the wires, it is broken away where the wires actually enter the alternator. the wires themselves dont appear to be damaged.
on the other end, one of the spade connectors to the rectifier may have been loose.

part of me just wants to replace the whole shebang. part of me wants to diagnose the the problem if possible.

I believe I tested the output at those spade connectors a couple of years ago while the bike was still set up to run. there was no output.

can I check to see if there is a break in the alternator windings itself?
do rotors lose magnetism in time and should it have that 1 inch play?
how can a rectifier be checked with a meter?

thanks men. or mates, if that's the case!!!!!

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #534373
03/23/14 10:27 am
03/23/14 10:27 am
Joined: Aug 2001
Posts: 4,126
Santa Barbara, California
KC in S.B. Online content

BritBike Forum member
KC in S.B.  Online Content

BritBike Forum member
Joined: Aug 2001
Posts: 4,126
Santa Barbara, California
Since you've been messing with these old bikes a long time, I know you plan to replace the rotor at a minimum. You would likely be able to see if the looseness is rotor/crank or rotor/hub while still on the motor. Hopefully it is the rotor itself, most likely IMO anyway. Fixing a crank keyway is almost too much trouble to bother with............ unless you live where those guys cast their new pistons before breakfast!!


Down to 1 BSA, 2 Triumphs, 2 '56 Chevys
Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #534437
03/23/14 5:44 pm
03/23/14 5:44 pm
Joined: Jan 2002
Posts: 1,132
hamden, ct.
hacksaw Offline OP
BritBike Forum member
hacksaw  Offline OP
BritBike Forum member
Joined: Jan 2002
Posts: 1,132
hamden, ct.
well.......my ohm meter battery died. so I decided to just go ahead and pull everything.
the stator turned out to be a mess. the rotor beat it up.
the keyway might be ok. I cant get the rotor off as it seems whatever bushing they sleeve the insides of the rotor with, has now worn a groove behind the keyway.
HOW IN HELL DO I GET THIS THING OFF?

Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #534524
03/24/14 12:47 am
03/24/14 12:47 am
Joined: Jan 2002
Posts: 1,132
hamden, ct.
hacksaw Offline OP
BritBike Forum member
hacksaw  Offline OP
BritBike Forum member
Joined: Jan 2002
Posts: 1,132
hamden, ct.
nick, it looks like the woodruff key is still in the keyway, so I am a bit leery of pulling the rotor off with a puller. although maybe that's exactly what I need to do.

what would one cut the rotor with if I go that route? a cut off wheel? u think I could cut it enuff to split it with a chisel?

Re: any suggestions for an A65 replacement alternator [Re: NickL] #534747
03/25/14 6:02 am
03/25/14 6:02 am
Joined: May 2004
Posts: 3,571
Sydney Australia
B
BSA_WM20 Online content
BritBike Forum member
BSA_WM20  Online Content
BritBike Forum member
B
Joined: May 2004
Posts: 3,571
Sydney Australia
A puller and a lot of heat

Or as had alread been suggested split the arbour.
A big nut spliter will do the job


Bike Beesa
Trevor
Re: any suggestions for an A65 replacement alternator [Re: hacksaw] #534756
03/25/14 9:07 am
03/25/14 9:07 am
Joined: Aug 2012
Posts: 668
West Virginia, United States
Beach Online content

BritBike Forum member
Beach  Online Content

BritBike Forum member
Joined: Aug 2012
Posts: 668
West Virginia, United States
This is what I replaced mine with and now I have a dependable charging system and nice headlight..A bit pricey but genuine Lucas rotor and welded stator...A lot to be said for a 3 phase charging system..

http://www.ebay.com/itm/Lucas-stator-kit...e01&vxp=mtr

Last edited by Beach; 03/25/14 3:42 pm.

Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead

Moderated by  Allan Gill, Jon W. Whitley 


Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | "OLD" BritBike Forum | DVD- Manuals & Parts books | BritBike Stickers & Decals
Upgrade to: Premium Membership | Premium Life Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.6.1.1