Alternator conversion |
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oscar225
Senior Member Joined: 03 Nov 2018 Location: Devon Status: Offline Points: 204 |
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Posted: 16 Nov 2018 at 16:07 |
hi thinking about the above for my 67 Ambassador as the dynamo needs refurbishing anyway, i have seen several companies in the US who market kits on Greg Benders wonderful site but the cost of shipping and then the import duties carry the eventual cost towards £350-£400 mark which is wzy out of my budget range.
is there anhbody this side of the pond who mafkets a kit or preferably just the mounting bracket allowing me to source my own alternator? Thanks Chris
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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Perhaps the most cost-effective answer Chris would just be to have your dynamo refurbished.
The dynamo is rated ar 300 watts. Do you need more than that? |
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
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Any small car self contained alternator could be made to work. Cheap enough from a scrappy, but you would have to mout it and possibly fiddle with belt drive as most now use the multi ridge belts, not the old V belt.
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Brian.
Better 5 minutes late in this world than years early in the next. |
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red leader one
Senior Member Joined: 07 Oct 2014 Location: Cullercoats Status: Offline Points: 4466 |
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oscar225
Senior Member Joined: 03 Nov 2018 Location: Devon Status: Offline Points: 204 |
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Thanks for the replies, think you may well be right, only have the normal lights and indicators but have a couple of extra driving lights and also have a set of "Wixom" panniers with extra lights but guess you're right Dave standard dynamo should be ample.
thanks for the links will contact one of them regarding rebuild costs and go from there.
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oscar225
Senior Member Joined: 03 Nov 2018 Location: Devon Status: Offline Points: 204 |
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wow having second thoughts with this already, dave lindsey wont touch it as he cannot get the spares, magneto guys no longer do dynamos and the only people i have found so far want £400 for a fully reconditioned unit which is on a par with the alternator conversion!!!
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Torquil
Guzzino Joined: 18 Nov 2018 Location: somerset Status: Offline Points: 6 |
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If you are mechanically minded it may not be too hard to refurb your dynamo for yourself. Essentially there are only five things to go wrong (assuming that the voltage regulator is working - I assume it is?):
1. The brushes 2. The bearings 3. The stator windings 4. The rotor windings. 5. The commutator. 1 to 3 are DIY jobs: The brushes should be fairly easy to check and not hard to replace. (Find them under the removable cover at the back end). If they need replacing chances are that there is something similar available out there - they are just lumps of carbon... The bearings - does it spin smoothly? These are standard items. Not too hard to replace. The stator windings. Not too hard to make... The rotor or commutator? Oh dear. Wallet damage inevitable. Watch for some inspiration! Good luck!
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It's better to mend than replace.
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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Hmm that 's jolly expensive. I based my opinion on the fact that the magneto guys refurbished a Magnetti Marelli dynamo for me around three years back for a little over £100. It's a shame that they no longer do dynamos.
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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ranton_rambler
Senior Member Joined: 13 Feb 2015 Location: Stafford Status: Offline Points: 1147 |
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Is it a Bosch unit on yours? Mine is, and luckily I've never had to touch it, but I think they were fitted on cars of a similar vintage - maybe air-cooled Beetle?
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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This could be worth considering...http://www.thisoldtractor.com/moto_guzzi_loopframe_generator_alternative.html
Dynamos for VW cars should be easy enough to find. |
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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Loopian
Senior Member Joined: 03 Sep 2015 Location: Brighton Status: Offline Points: 202 |
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If you look on this old tractor web site you will find full instructions to refurb and test both makes of Dynamo. I did my Bosch one. If you are reasonable with spanner’s, take your time it’s not too difficult. I only had to replace bearings and clean. There must be someone who would do a refurb at a sensible price, I got bearings for a few pounds.
Good luck Ian
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Dave P.
Senior Member Joined: 12 Jan 2015 Location: Northants Status: Offline Points: 5573 |
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TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.
1971 V7 Special. 1972 850GT. 1970 T120 Bonnie. 2009 500 Bullet. |
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oscar225
Senior Member Joined: 03 Nov 2018 Location: Devon Status: Offline Points: 204 |
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Hi all thanks again for the responses, mine is fitted with magnetti dynamo and regulator box, but the vw replacement on Gregs site is an interesting option, presumably just need to source a suitable regulator as per those listed.
Chris
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Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
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How about a Denso 40 Amps alternator - as used by 750cc Urals: NB: ^ 'Kubota 40' is a 'compact tractor'. By default is fitted with a 'V' pulley as shown*. Internal regulator. (* Ural's has an adaptor for a helical gear) |
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"Chicken nuggets don't dance on a Tuesday."
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