I have a spare generator for my 1922 T. I have tested it as I always do- with my drill and the generator in a vice. But this one only delivers electricity when it is spun anti-clockwise!
Battery neg. ground.
I have polarized several generators for people who want to change battery polarity( pos/neg ground). But I have never met a generator which only charges when turning the wrong way!
What have I done wrong - and how do I correct the odd problem?
Generator problem
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RajoRacer
- Posts: 4359
- Joined: Sun Jan 06, 2019 12:18 pm
- First Name: Steve
- Last Name: Tomaso
- * REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
- Location: Longbranch, WA
- MTFCA Number: 14972
- MTFCI Number: 15411
- Board Member Since: 2001
Re: Generator problem
There were repro field coils incorrectly wound - with those, you DID NOT cross the leads !
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AndreFordT
- Posts: 489
- Joined: Sun Jan 06, 2019 12:25 pm
- First Name: Andre
- Last Name: Valkenaers
- * REQUIRED* Type and Year of Model Ts owned: 1926 ; 1922 ; 1915.
- Location: Scherpenheuvel
- MTFCA Number: 23792
- MTFCI Number: 19330
Re: Generator problem
Reidar,
I can't walk on water but ...
I have seen it before twice. It were unknown generators I didn't work on before.
By one the field coils wires were not crossed. The other just needed to set the neutral right.
I did a rebuild on both after having found the problem and they never came back so I think they are OK.
Just my opinion.
Andre
Belgium
I can't walk on water but ...
I have seen it before twice. It were unknown generators I didn't work on before.
By one the field coils wires were not crossed. The other just needed to set the neutral right.
I did a rebuild on both after having found the problem and they never came back so I think they are OK.
Just my opinion.
Andre
Belgium
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Norman Kling
- Posts: 4095
- Joined: Tue Jan 08, 2019 1:39 pm
- First Name: Norman
- Last Name: Kling
- Location: Alpine California
Re: Generator problem
Are you sure it is not a Model A generator? Maybe the field coils are Model A? Otherwise, I don't know why it would be like that.
I have not found a generator like that, but have you checked for the null point by rotating the end plate so that when you hook to a battery, it will not run like a motor in either direction. this should be done with the third brush lifted When you set the brush end of the generator to the null point then lower and adjust the third brush so it will run like a motor.
Norm
I have not found a generator like that, but have you checked for the null point by rotating the end plate so that when you hook to a battery, it will not run like a motor in either direction. this should be done with the third brush lifted When you set the brush end of the generator to the null point then lower and adjust the third brush so it will run like a motor.
Norm
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rondupree
- Posts: 78
- Joined: Sun Jan 06, 2019 2:11 pm
- First Name: Ronald
- Last Name: Dupree
- Location: Illinois
- MTFCA Number: 22940
- MTFCI Number: 15830
Re: Generator problem
Like RajoRacer said. Just swap the field coil leads and all should be good.
Ron Dupree
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Mark Gregush
- Posts: 4967
- Joined: Sat Jan 05, 2019 1:57 pm
- First Name: Mark
- Last Name: Gregush
- * REQUIRED* Type and Year of Model Ts owned: 1925 cutdown PU, 1920 Dodge touring, 1948 F2 Ford flat head 6 pickup 3 speed
- Location: Portland Or
- MTFCA Number: 52564
- Board Member Since: 1999
Re: Generator problem
I will 3rd what Rajoracer said, also checking the null point. I had a generator that had those windings in it, had a devil of a time figuring it out.
I know the voices aren't real but damn they have some good ideas! 
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup
1925 Cut down pickup
1920 Dodge touring
1948 Ford F2 pickup