Re: Charging question

Posted by HH56 On 2018/10/26 12:53:23

You might check with 5th avenue on their specs or see if they have a recommended wiring diagram. Some alternators are truly single wire with self excitation at a lower engine rpm and others will still work as a single wire but need a faster rpm before anything happens. Sometimes there are extra terminals that need a switched voltage input from the key or a jumper or some other arrangement to provide faster excitation to work at low engine rpms.

All alternators have a rpm where they start to work and that range vs engine rpm depends on pulley diameters. If there is a large diameter pulley on the alternator perhaps it is not getting to the needed alternator rpm until the engine is running faster.