So my girlfriends A-model was having intermittent flat battery issues, but seemed to run great once started. Battery checked out fine. So today I decided to open her up and check Alternator and Reg/Rec. Started by checking the output voltage at battery. All looked good (14 - 15 volts) when running. Tried with high beam on and it dropped quite a bit. Pulled the tank off to check Alternator output voltage and when I disconnected Regulator, I found this... It's the Y3 wire which is all burnt out. Did the test anyway and got a good voltage reading on all three cables. So Alternator should be good. But what would cause this? Dodgy Regulator? (I don't have 3 batteries available to test it) Or maybe just a lose connection? Sent from my SM-G920F using Tapatalk
To me , it looks like a bad connection that's done all of that damage. I'd personally would be cutting the loom back until you find good clean wires , make another small loom so it's still the correct length again and fit new terminals and especially another connection plug , don't forget to check the other connection plug for damage.And give it a test. Beware of the cheap terminals on the market these days , there real soft and don't hold together well causing hot spot's.
The C model RRs are known to heat up to the extreme due to the bad positioning so Id assume the A isnt much better Yours looks pretty dirty as well so I would clean it up so the fins can do their job better at cooling Check the airflow to the RR is not impeded by anything Test it also to see it hasnt cooked itself C model test
Built a mini loom with new connector. Plugged it up but it was putting out about 16.5v. Replaced reg/rec with a new one and it's sitting solid at 15v. Sent from my SM-G920F using Tapatalk