30 amp generator vs 55 amp The 21AS - 1000B generator is rated at 30 Amps, while the 21AS-1000-D is rated a 55 amps, both for 42-48, 8 cylinder pass. according to the green bible. How do you get 25 more amps or about 80% more amps out one generator, What is the electrical difference ?
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Re: 30 amp generator vs 55 amp Can't say for certain on that old of a car, but in 48-52 trucks it's a larger generator.
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Re: 30 amp generator vs 55 amp They have different armatures and field windings, one has two brushes and the other has four.
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Re: 30 amp generator vs 55 amp Quote:
I have searched for one of those for decades but have never seen one. The difference? As Ross had stated, it was larger than the stock generator. Not larger in diameter but rather, in length. |
Re: 30 amp generator vs 55 amp i have a couple long ones, military surplus from the big one, ww2. sadly, they will not fit a stock single carb manifold as they hit the carb.
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Re: 30 amp generator vs 55 amp You would also require a voltage regulator to match that 55 amp generator. Most regs are rated at approx 32 amps. Regards, Kevin.
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Re: 30 amp generator vs 55 amp Ford made a 51AS-10505-A regulator rated at 40-45 Amps for the 55 amp generator. Too scarce, and too long though, but great information. Thank you.
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Re: 30 amp generator vs 55 amp The 1938 truck sales lit. Mentions an optional 12 volt system.
They mentioned something about fleets that use radio communication. |
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Re: 30 amp generator vs 55 amp 1 Attachment(s)
here's a pic i had on file. i assume they had they're own manifold. perhaps T16, or bren carrier. i had two T16's years before i had these gennys, sorry, didnt pay attention to what was on them.
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Re: 30 amp generator vs 55 amp I have seen special intake manifolds that move the carburetor back to clear the long generator.
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Re: 30 amp generator vs 55 amp another thought that just occurred to me, perhaps my long gennys would fit on the big 337 (?) truck motors as they must be longer
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Re: 30 amp generator vs 55 amp The 337 have the room for a longer generator, but used 8BA style strap hold down. The 337s I have use the typical 8BA sized generator too, but I have seen pictures of a 337 with a long generator.
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Re: 30 amp generator vs 55 amp thanks for that info, so the real application for the long genny i have is still a mystery !
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Re: 30 amp generator vs 55 amp Quote:
I remembered seeing an add for an old bus with a generator like yours. I found it again, 1939 Ford bus. Scroll down through the pictures, notice the carburetor is moved closer to the fuel pump to clear the generator: https://barnfinds.com/crackerbox-1939-ford-school-bus/ |
Re: 30 amp generator vs 55 amp mr 38 coupe, thanks for that!!! it sure looks like the same one. looks like the back of the genny is darn near to the center water outlets on the head. mystery solved. years ago before i knew they would not fit a standard manifold i sold one at a swap meet. that fellow was very excited, well at the time, perhaps not when he tried to use it! maybe he's a barner, and now needs to find a bus?
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Re: 30 amp generator vs 55 amp Anyone know what the greatest output is, i.e. greater than 30amps, for a standard length generator is and the part numbers?
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