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Dynamator output

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RadfordJim
Posts: 140
Joined: Tue Feb 16, 2016 10:19 am
Location: Coventry

Re: Dynamator output

Post by RadfordJim »

A quick update.
Thanks to Richard, I spoke to Paul at Smart Power and he thought my Dynamator is probably ok as it's been working for the past 5 years. My auto-sensing meter could be detecting ripples on the output, so I borrowed a simple multimeter set to Vdc and the readings were all ok:
Standing battery 13.54V
Engine at 1000rpm 14.38V
Tickover 650rpm 12.65V

In conclusion Paul said the Dynamator is a bit of a compromise between physical size and output. At high loads they have been known to overheat and cook the diode assembly.
Many thanks for all your comments and advice.
Jim
Jim in Coventry - Home of the Daimler

classiclife
Classic Wise Man
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Posts: 1601
Joined: Wed Sep 05, 2018 9:55 am
Location: Ridgewood - East Sussex
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Re: Dynamator output

Post by classiclife »

Excellent news, Jim, with the issue now solved hopefully; certainly seems like it from your new figures.

Regards.

Richard.
1968 Daimler V8-250 Saloon
DLOC East Sussex Branch Secretary
DLOC 2.5L V8 & V8-250 Registrar - https://www.dloc.org.uk/v8-250
DLOC 2024 International Rally - https://www.dloc.org.uk/rally-2024

Brian-H
Very Wise Man
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Posts: 1095
Joined: Fri Aug 09, 2019 6:04 pm
Location: UK

Re: Dynamator output

Post by Brian-H »

I'm intrigued about that "auto-sensing" meter. What make and model is it ? Try it on a car with an alternator and see what it does there.

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RadfordJim
Posts: 140
Joined: Tue Feb 16, 2016 10:19 am
Location: Coventry

Re: Dynamator output

Post by RadfordJim »

Hi Brian, the meter is designed to carry out all the tests necessary on an electrical installation, Megger MFT. That's what I did just before I retired :D

I tried it on my daily driver which has a standard alternator and it registered pure dc volts across the battery whether the engine is running or not. That's what lead me to believe there was a problem with the output of the Dynamator, hence my OP.
Jim in Coventry - Home of the Daimler

Brian-H
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Posts: 1095
Joined: Fri Aug 09, 2019 6:04 pm
Location: UK

Re: Dynamator output

Post by Brian-H »

I won't be telling granny how to suck eggs there LOL

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