My alt died the other week and mechanic
came and took it off and said the regulator
was bad. He said he couldn't find the original regulator
so the modified another one onto it to work.
When we tried it after the install we had to bring the revs up to around 20k then saw the charge on the dash instrument. Then when put the gas back down to idle or normal cruising revs 15k. It would still show it was out putting something. He said maybe just my engine
didn't spin fast enough or something for it to kick in.
I left a few days later and when we where cruising on the engine
I again had to bring it up to a higher rev then back down but then I also notice the gauge jumping around a lot. A few days later to the next port (current port) there was no out put from the alt any more. I think its dead again.
I had similar issues with it originally when it died. A mechanic
will again be here to look at it in the next few days but if any one can give me any input on if its something with just he regulator on the alt or something deeper wrong with the alt please let me know.
Somethings I noted where when I start the engine (Mercedes OM-636) I hear a bit a of a whining sound appearing to come from the alt for about 5-8 secs.
Also when the mechanic reinstalled the alt he bypassed the sterling charger
and said I didn't really need it it didnt do much.
The alt is connected to a battery
isolator with that charges the starter batter (110ah) bank 1 (240ah) bank2 (460ah)
Please let me know any advice or suggestions. Thanks