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Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 6:16 am
by Sandun
Dear Sirs, Ammeter (Ampere meter)of my morris minor 1000 car Reading like this
when start the car,Ammeter is ''0" position
When all light on (still start ) -15 position (when engine raise it come "0" ......+)
All light off ,When Start and raise the engine +30.........(over then +30) Battery is ok (not low) (Ammeter is -30 - +30 Meter)
When full raise, battery voltage is 13 ,13.5
Voltage control box ------ I remove the A1, A wires and joint them together and check voltage between D and E before close the point it was 8v , Then raise the engine full and check voltage between D and E it was 15 or 15.5
the car uses Dynamo System
please tall me what is this abnormal reading of ammeter
Re: Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 8:28 am
by MarkyB
From memory they sound fine, When full raise, battery voltage is 13 ,13.5 suggests it is charging OK.
Are you having starting or other electrical problems?
Re: Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 9:19 am
by mike.perry
You have not said if you have a dynamo or alternater.
If you have a dynamo then the ammeter should show a small + when driving with the headlights, heater and wipers switched on.
Re: Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 10:39 am
by bmcecosse
It's fine -except for the +30 reading when running with no lights on..... Does this reading reduce after a few minutes - or does it stay up at +30, which is obviously far too high, but is ok for a couple of minutes after starting.
Re: Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 11:00 am
by Sandun
Dear Friend MarkyB it is a dynamo
Re: Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 7:11 pm
by MarkyB
Are you having a problem with the car or just checking things?
Re: Ammeter of morris minor 1000
Posted: Mon Sep 26, 2011 8:27 pm
by bmcecosse
His coil was overheating - and he suspects the high voltage from the charging system is the cause...... Still waiting to hear if the +30 is a transient reading - or continuous.......
Re: Ammeter of morris minor 1957 with n / e
Posted: Sat Dec 17, 2011 11:15 am
by ray wilson
can you tell me how to wire amp gauges to a 1957 morris minor with n /earth thank you ray
Re: Ammeter of morris minor 1000
Posted: Sat Dec 17, 2011 11:02 pm
by bmcecosse
You need to be extremely careful to insulate the ammeter wires very very carefully - because they are unfused and heavy duty cable, so quite capable of starting a fire if they short out...... I suggest disconnect the battery before doing this - remove the brown wire from the starter solenoid - extend it to the ammeter and then run a cable from the other terminal on the ammeter back to the solenoid. Simples! If the ammeter reads +ve with the lights switched on, swop over the wires on the two terminals. Job done.