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Old 02-08-2020, 04:34 PM   #21
jim1932
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Default Re: Basic trouble shooting 32 generator

I would rather work out a correct Generator. Reorganized the shop today.... found this one. Looks right for a B?
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Old 02-08-2020, 04:47 PM   #22
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Default Re: Basic trouble shooting 32 generator

And I am rewiring the car Monday with a kit from Rhode Island Wiring. I liked the kit I got from Tyree for the Tudor, but this one was in the spare parts that came with the car.
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Old 02-08-2020, 07:04 PM   #23
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Default Re: Basic trouble shooting 32 generator

Jim,


The generator in your photos is a typical rebuilt (at some point in its past) unit with a mixture of parts from different model years. It has the correct front stamping, but the back cover is '34 and the center section is Model A. The terminal post on an original '32 B generator was in the middle of the housing so that when the cutout is attached the connection for the output wire is at the front of the cutout. I can't tell from the photos, but the original B pulley was cast iron (carried over from the Model A). The rebuilds often show up with the later stamped pulley.
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Old 02-08-2020, 08:14 PM   #24
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Default Re: Basic trouble shooting 32 generator

Jim,


Like so.
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Old 02-11-2020, 08:01 AM   #25
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Default Re: Basic trouble shooting 32 generator

The spare generator will spin when hooked straight to a battery and is closer to correct so I will put that on and see what happens. I am halfway through rewiring car so hopefully between the two that takes care of it. Oh and it does have a pressed pulley. But then again, I am not going for show points.
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Old 02-19-2020, 09:05 PM   #26
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Default Re: Basic trouble shooting 32 generator

Arrggh picked up a more correct generator. Barely tried to spin hooked up to battery, issues when opened up. Can I take everything from generator two and put it in number three?
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Old 02-19-2020, 09:35 PM   #27
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Default Re: Basic trouble shooting 32 generator

Likely, but hooking up a generator to a battery to get it to work like a electric motor is not a test that I'm familiar with.
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Old 02-19-2020, 09:49 PM   #28
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Default Re: Basic trouble shooting 32 generator

testing a generator by "motoring" with a batteyit is a quick way to tell if it will charge. They dont spin very fast when up to snuff, maybe 300 rpms or so. If it spins it will charge, however a generator with a shorted out commutator bar will still spin (at a very very slow rate) and will charge at a very low rate as well (2-4 amps). The ignition system on most Early Fords when setup properly will dram 2.2-2.8 amps assuming no lights are turned on.

Soooo.... the testing a generator with a battery, is a quick easy test to determine if the field coils are shorted or not which is a common issue. If it spins but very slowly it's best to then test the armature on a armature growler to see if a winding or commutator bar is shorted.

I have motored enough of them to tell visually if they have a issue or not..

As a matter of fact currently the generator on my Model B motors when connected to a battery but much slower than normal. I have yet to fix it. It has a short in the armature winding. It charges just enough if I have the lights off.
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Old 02-19-2020, 09:51 PM   #29
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Default Re: Basic trouble shooting 32 generator

They wont spin very fast when you motor them.


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Old 02-19-2020, 10:24 PM   #30
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Default Re: Basic trouble shooting 32 generator

Jim, if I were you I would just fit that generator onto your car and see if it charges or not. Seeing that you have little experience with generators then I would not try and mix and match parts from the two generators. Testing a generator by connecting it across a battery to motor it IS NOT a conclusive test to know if it will charge correctly if driven. I know what others have posted but I have worked on these things for nearly 60 years and am only trying to pass along what is correct and what is not correct. Make sure the cut out is fitted the right way around. With engine revved up a little the ammeter should show about 6 amps charge which is high enough. That equates to about 10 amps output from the generator allowing for about 4 amps current draw from the ignition coil. If it charges more than 6 amps on the ammeter then the third brush setting is too high and will have to be knocked back. Don't have the generator belt too tight otherwise it places too much load on the generator bearing and end bush. Good luck, Regards, Kevin.
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Old 02-19-2020, 10:52 PM   #31
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Default Re: Basic trouble shooting 32 generator

Quote:
Originally Posted by Kerk View Post
A CUT OUT IS JUST A SET OF POINTS that when the ignition switch is Off they are open, IF THEY STICK CLOSED ANB YOU SHUT IGNITION OFF the AMP gage will get burned out ,! Been there done that 1 A funspot cut out may be a better choice.
Having the ignition switch on or off has nothing to do with the cut out operation. This is how a cut out works. As engine revs are increased then the generator voltage increases and when it rises slightly above the battery voltage then the cut out contacts close and allow a charge to go through to the battery. When engine revs decrease back close to idle speed then the generator voltage decreases to just below battery voltage which allows the cut out contacts to open and therefore disconnect the generator from the battery. Of course the ignition switch has to be ON to run the engine but is in no way connected directly to the cutout. Regards, Kevin.
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Old 02-19-2020, 11:27 PM   #32
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Default Re: Basic trouble shooting 32 generator

Would the generator fitted to the 4 cyl engines be the three brush type?
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Old 02-20-2020, 12:06 AM   #33
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Default Re: Basic trouble shooting 32 generator

Quote:
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Would the generator fitted to the 4 cyl engines be the three brush type?
Lawrie
Yes, Model A & B engine cars all have a 3 brush generator. Early A powerhouse generators had 3 & 5 brush generators. Regards, Kevin
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Old 02-20-2020, 01:46 AM   #34
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Default Re: Basic trouble shooting 32 generator

Thanks Kevin.
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Old 02-21-2020, 10:50 AM   #35
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Default Re: Basic trouble shooting 32 generator

I will drop it into the car this weekend and see what happens.
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