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Austinsevenfriends › Austin Seven Friends Forum › Forum chat... v
Dynamo no go

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Dynamo no go
Tiger Offline
Senior Member
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Joined: Apr 2018 Posts: 507 Threads: 129
Reputation: 2
Location: Staffordshire
Car type: Ruby mk 2
#31
09-02-2019, 12:46 AM
No progress yet Dave
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wild_willy Offline
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Joined: Sep 2017 Posts: 79 Threads: 12
Reputation: 1
Location: Melbourne
#32
09-02-2019, 07:33 AM
(05-02-2019, 01:00 PM)Dave Wortley Wrote: Tiger,
My drill is 3000rev/min max so say 2000. I must have let it run for 3 or 4 mins. Hope it works for you.
Cheers,
Dave.
My recent rebuilds of C35M dynamos support Dave's suggestion of 2000+ rpm for a few minutes. This allows sufficient voltage to be  generated in the field windings to generate a strong magnetic field. You will feel the resistance to the drill as it starts to generate its full output.
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Tiger Offline
Senior Member
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Joined: Apr 2018 Posts: 507 Threads: 129
Reputation: 2
Location: Staffordshire
Car type: Ruby mk 2
#33
09-02-2019, 01:32 PM
Tried 2500 rpm for 5 minutes.
Still no go
Tim
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Tony Press Offline
Older Member
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Joined: Aug 2017 Posts: 1,745 Threads: 42
Reputation: 15
Location: Malvern, Victoria, Australia
#34
09-02-2019, 09:43 PM
(09-02-2019, 01:32 PM)Tiger Wrote: Tried 2500 rpm for 5 minutes.
Still no go
Tim

Have you considered taking it all to a reputable Auto Electrician !
http://austin7club.org
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John Mason Offline
Lifetime lover of car tinkering
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Joined: Dec 2017 Posts: 1,160 Threads: 68
Reputation: 8
Location: Nottinghamshire. Robin Hood County
Car type: Austin Ruby Mk1 1935
#35
09-02-2019, 10:08 PM
I agree Tony. There is only so much you can do on the forum. It would be different if we had the Dynamo on the bench in front of us.

John Mason.
Would you believe it "Her who must be obeyed" refers to my Ruby as the toy.
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