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Need help in diagnosing an electrical issue

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Need help in diagnosing an electrical issue #1
Van-island-mgb Peter Wilson Comox, BC, Canada Sign in to contact 1970 MG MGB	Topic Creator (OP) Mar 31, 2015 07:03 PM Joined 10 years ago 314 Posts

I notice that when I start the car the ignition warning light stays on until I boost the rpm, it then goes off and stays off while the engin idles. My plug-in volt meter (digital) stays at approx. 12.7volts until the rpm are boosted and then reads 14volts +or-. After a while the digital readout starts to fluctuates and I need to remove and plug it back in to clear what looks like an erroneous reading.

I am certainly not an electrican but some guidance would be appreciated.

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Re: Need help in diagnosing an electrical issue #2
Steve Passmore Dusty, WA, USA Sign in to contact 1969 MG MGB	Mar 31, 2015 07:14 PM Joined 9 years ago 112 Posts

Sounds perfectly normal to me.

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Re: Need help in diagnosing an electrical issue #3
billymgb1000 william gaulin harrisville, harrisville RI, USA Sign in to contact 1973 MG MGB 1974 MG MGB V8 Conversion "Sweet Thing"	Mar 31, 2015 07:31 PM Joined 11 years ago 1,882 Posts

x2 on that, sounds fine

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Re: Need help in diagnosing an electrical issue #4
ohlord Rob C A tiny Island off the coast of Washington State, N.W., USA Sign in to contact 1957 Land Rover Series I "EYEYIYI" 1957 Land Rover Series I "OVRLND" 1971 MG MGB 1971 MG MGB "Bedouin 2" & more	Mar 31, 2015 07:32 PM Top Contributor Joined 12 years ago 28,878 Posts

Choke on start te light should only stay on a few seconds till the alternator excites and the light goes off.
Once excited light remains off at normal idle speed.

LNDRVR4X4.COM
Home of Project "INCARN8'

1957 Series 1 Land Rover electric VEHICLE CONVERSION

FIXITUPCHAP.COM
FIXITUPCHAP INCORPORATED

RD3 Radar/ Electronic Warfare Technician
VIETNAM 1969-1972

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