Hi Group,
Can someone tell me what the alternator output should be for my 70 1600?
I had three original alternators tested. One was shot, one is putting
out 30 amps and the last is putting out 35amps. The guy at the repair
shop said that 35amps is the correct spec.
I've installed the 35 amp output unit (moved it from lower left to upper
right on the engine) and also inspected the voltage regulator. When I
removed the cover I discovered that the coils were burned out. I changed
out the regulator, replaced all of the battery cables and grounds.
Volt output with a static battery test indicates 12.8 volts. When
started, output at the battery drops down to 12.4 volts. Output at the
alternator is also 12.4 volts. The 1600/2000 service manual states that
the output should be 14.0 volts.
I've asked several (non-roadster) people about the current output
readings and half say it's fine and half say, bad news, you have a draw
on the system and I must continue troubleshooting the problem. If
someone needs their airplane fixed (hammerslammer) I can handle that but
I'm a little light on 35 year old automobile electrical systems.
Steve Harvey
P.S. Should just chuck the old alternator and go new?
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