well, when connecting D,F terminals together we get .57 volts with no
change whatsoever when increasing RPM. The manual said to check field
coil between field coil terminal and generator yoke (don't actually know
what that is, but assumed it to be mounting ear on generator) of the
6ohms expected we got .5 Couldn't say anything for the warning light
since we have only had the car 1 week and I hadn't seen it on it may not
be working. While I am thinking of it, this is a 1098 motor, not the 948
that belongs in this car, your directions seemed like a quote from the
shop manual, presumably this all holds true for the 1098 as well as 948
but should the resistance in the field coil be any different? The nice
bit is that the generator for 1098 is $65 while the one for the 948 is
$200. Thanks for the help.
James Nazarian
'71 B roadster
'71 BGT ever so slowly turning into a V8
'63 Buick 215
"Aerodynamics are for people who cannot build engines"
Enzo Ferrari
On Fri, 28 Jul 2000 paul.hunt1@virgin.net wrote:
> Start the car and monitor the voltage on the brown circuit. You should see
> better than 12.7v, and hopefully around 14v if the system is charging, less
> than 12.7 if not.
>
> If not, disconnect the wiring from the D and F terminals on the generator.
> Connect the two terminals together, and connect a voltmeter from that
> connection to ground. Start the car BUT DO NOT REV IT. Slowly increase the
> revs while watching the voltmeter. Do not exceed 20v, this should happen
> before 1000 rpm. Do not rev the engine to achieve 20v. If this test is OK
> the generator itself is good, the problem might be in the control box.
>
> If you only .05v to 1v the field winding may be faulty. If you only see
> about 4v to 5v the armature winding may be faulty.
>
> The cut-out relay in the control box should operate when the generator is
> putting out between 12.7 and 13v, this should connect charging voltage from
> the D terminal to the B terminal, and incidentally extinguish the ignition
> warning light. This light should come on when you first turn on the
> ignition and go off when the system is charging. If the warning light does
> not work then shame on you, and that's what you get for ignoring it.
>
> PaulH.
>
> ----- Original Message -----
> From: James Nazarian Jr <James.Nazarian@Colorado.EDU>
> To: <mgs@autox.team.net>
> Sent: Thursday, July 27, 2000 8:35 PM
> Subject: generators and pos ground
>
>
> > How does one go about testing a generator
> > and what quantity of juice should it be producing. I know on a B you want
> > to see about 14.5 volts on a well charging car, but how about on a bugeye
> > with a generator?
>
>
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