L16 charging problem
Posted 29 June 2017 - 06:42 PM
Posted 29 June 2017 - 07:20 PM
It revs up just fine.... I'm not seeing a problem here. Sounds fine to me.
BTW the battery should never be disconnected from the vehicle when it's running. The battery smooths out the voltage. Revving it up may cause a higher voltage surge. A quick disconnect while idling may be ok.
Posted 29 June 2017 - 09:53 PM
I'd just run it as it is. If you are seeing 13-14v while running.. it's fine.
Posted 30 June 2017 - 07:57 PM
Posted 30 June 2017 - 08:02 PM
Either the alternator or the voltage regulator is faulty or perhaps wired wrongly. I wouldn't run it like this as it will shorten the life of the battery.
Some back story, please.
Has the alternator or the voltage regulator been replaced recently?
Does the wiring on the alternator look like some one has spliced it? Replaced wiring?
Has this run properly and just started acting up?
Posted 30 June 2017 - 08:32 PM
Posted 30 June 2017 - 09:10 PM
I suppose the alternator could have been replaced with an internally regulated one. That requires some of the regulator wires to be cut and connected together but usually the regulator is then removed as it isn't needed.
Try this for a wiring diagram... http://www.davidcmur...dat/620tech.htm
Posted 01 July 2017 - 09:15 AM
is there any way for me to tell if its an internally regulated alt ?
Posted 01 July 2017 - 09:29 AM
I believe your external regulated alternator should have an N and an F mark beside the two wire plastic plug in the back. An externally regulated alternator will have L and S.
Posted 01 July 2017 - 10:03 AM
awesome , thank you mike your the man. its an external regulated alt. I'm going to re wire voltage regulator according to schematic and see where that leaves me. Ill let you and the forum know how it goes.
Posted 01 July 2017 - 10:07 AM
Posted 01 July 2017 - 12:39 PM
Two pairs of wires on the voltage regulator need to be cut and joined to make the switch to an internally regulated alternator. Unplug and remove the external regulator. Trim the wires off the old regulator but leave them long. Join the WHITE and the YELLOW wires. Join the WHITE/YELLOW (stripe) and the WHITE/RED (stripe) wires. Twist them together and solder or any good firm electrical connection and use shrink wrap tubing to insulate them. Remove any other wires from the regulator plug. Plug the modified regulator plug with the joined wires into the harness.
Because of how the automatic choke works the relay for it is now (unfortunately) permanently wired ON at all times and will drain the battery over a weekend with the engine off. No worries, it's an easy fix. Unplug the auto choke heater relay and /or remove it. Choke now has no power for it, so..... Look on the carb for the RED (idle cut solenoid wire) and the BLUE (choke heater wire). Connect the the BLUE choke wire to the RED idle cut wire. The choke now gets it's power from the idle cut solenoid which is turned on/off with the ignition.
Done... and it was so easy. Now you can add an even higher amperage internally regulated alternator.
Posted 01 July 2017 - 01:55 PM
yeah , thats how it was wired. i guess it had an internally regulated alt on it before it was in my possession, and when it failed on me i got a new alt and voltage reg thinking it was externally regulated because the regulator was still in the bay. since i already have the new alt and voltage reg installed im just going to wire it back up for the stock externally regulated alt. I understand its better to run an internally regulated one but I'm swapping a ka in soon so I don't want to go out of my way for this motor.. and man my choke has ALWAYS been stuck on and I couldn't figure it out for the life of me. now I know what it was , I'm assuming going back to stock wiring will get rid of that ? thank you.
- superbee620 likes this
Posted 01 July 2017 - 03:53 PM
Posted 01 July 2017 - 04:24 PM
Posted 01 July 2017 - 06:01 PM
Who can say what someone else did? I only know about the stock set up. There shouldn't be any 'resisters' in the charge circuit. The red charge lamp must be in working condition. Turn key on it should light. Start engine, it should go out if charging.
Posted 01 July 2017 - 06:28 PM