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26th November 2021, 11:31 | #21 |
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Back in the day, (late 1960s buses) our Leyland Leopards would take several minutes continuous cranking in cold weather, followed by a clouds of acrid smoke.
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26th November 2021, 21:22 | #22 | |
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Quote:
Fast tick over to put a charge into a nearly flat battery is no better than just letting the engine tick over.--The modern alternators will hold 14.4 volts even at tick over.--- |
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27th November 2021, 00:31 | #23 | |
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Quote:
Rubbish design from the 1960's compared to what exactly ? Fast tickover compared to idle tickover to put a charge into a nearly flat battery is the same you say. Can I suggest you experiment on your suggestions with a modern alternator with both a voltmeter and an ammeter connected. Then come back to report that the amps produced is exactly the same at both idle and a high idle. Volts is only half of the story
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27th November 2021, 08:38 | #24 | |
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Quote:
Up to the late 1970's most vehicles did not charge the battery well at idle. Motorcycles did not at all. When Honda launched the CX500 V-twin in 1978, they made a huge thing of the fact that its alternator charged the battery even at idle. |
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27th November 2021, 10:28 | #25 |
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I changed the dynamo on my 1970's Fiat 500 for an alternator with dramatic improvement.--It made a real improvement of the headlights from 10 glow worms to 100 glow worms.---The light actually managed to reach the road surface---
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27th November 2021, 10:33 | #26 |
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Worth looking at.--------Live and learn is my motto.-----
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29th November 2021, 22:48 | #27 |
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I guess the above pdf was too complicated for most folk.---
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30th November 2021, 17:11 | #28 |
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30th November 2021, 19:47 | #29 |
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A bit technical in parts but otherwise not bad. Remember when you said......... " Fast tick over to put a charge into a nearly flat battery is no better than just letting the engine tick over.--The modern alternators will hold 14.4 volts even at tick over.-- " And I said .........."Fast tickover compared to idle tickover to put a charge into a nearly flat battery is the same you say. Can I suggest you experiment on your suggestions with a modern alternator with both a voltmeter and an ammeter connected. Then come back to report that the amps produced is exactly the same at both idle and a high idle. " Could I suggest you read the PDF, taking note of Fig. 3 and Fig. 7 where you will find that there is a noticeable increase in current output at higher idle ( fast ) speeds
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30th November 2021, 20:52 | #30 |
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