Posted by JDEM on December 10, 2017 at 07:25:16 from (174.230.29.108):
In Reply to: 1 Wire or 3 posted by pat sublett on December 09, 2017 at 16:53:19:
Delco-Remy sold one-wire alternators years ago and likely are all gone. The OEM Delco one-wire regulator was part # 1116409. It is now obsolete from Delco. So anything now if new or newly rebuilt is likely to have an aftermarket regulator. Even then there are variations. A cheap one-wire regulator only rated for a 5 amp field cost $8 new. A HD version for a 7 amp field costs $14 or more. My point is - if people start discussing what is "good" or "bad", some specifics are needed.
The fact remains that no one-wire can monitor battery voltage. It can come close and that is often fine on a farm-tractor that has the alternator and battery close to each other.
As far as high cut-in speed? Kind of meaningless unless the pulley ratios used are mentioned. Delco rates alternators by their own shaft RPMs. Often alterators turn 4-5 times faster then the engine to work.
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