Hi Ivin,
it sounds like the ammeter is reading starter current when you crank
the engine:- not needed and dangerous to the wiring.
You should have a heavy gauge wire from the battery (+) to the starter
motor to handle the starting current.
Then smaller gauge wires from the same point at the starter to the
ammeter and fuses.
The ammeter may show a discharge (when engine is not running) to
indicate any current draw due to ignition, parkers on, radio, heater
fan whatever.
During cranking it may show 0 or a slight discharge (-) depending on
the circuits energised at startup as shown above.
Once the engine is running it should always show a charge (+) unless
the alternator is not capable of handling the load.
Regards,
Graeme Suckling
1965 SP310 - under construction DSOA Member # 112
www.imagestation.com/album/?id=4291195515
1971 P510 4 door - daily driver, original owner, highly modified.
www.imagestation.com/album/?id=4290669159
1972 PL510 2 door - in storage.
www.imagestation.com/album/?id=4290575481
1973 HS30/240Z - re-building to 2003 specs.
www.imagestation.com/album/?id=4291183313
Adelaide, South Australia.
-----Original Message-----
From: owner-datsun-roadsters@autox.team.net
[mailto:owner-datsun-roadsters@autox.team.net]On Behalf Of Jessica
Sent: Thursday, 6 March 2003 11:46 AM
To: Datsun-Roadsters List
Subject: Wiring again
Back a few weeks ago, I replaced my 1966 30 AMP alternator with a 1974
260Z
Hitachi 50 AMP alternator. I wired the new alternator in as follows:
F=w/b,
N=y, E= ground, B=pos (one wire to the Voltage regulator, one to the
AMP
meter.
All seems to work fine, but when I start the motor, the AMP meter gets
hot and
the needle is pegged at 30 AMP. If I take a wire from the B post of
the
alternator and attach it to the positive of the battery, the AMP meter
stays
cool, the needle is just on the positive side, and shows that its
charging.
The only thing is that the wire that I connected from the B on the
alternator
to the battery (fused at 30AMP), gets real hot?
Any help would be appreciated.
Thanks,
Ivin
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