I guess it's my turn for a new alternator. Started the truck to warm it up and it went up in smoke........LITERALLY

 

Ouch! (hope the FICM is OK - lol)

 

Tim, Didn't you have one of the a/m high outputs??

 

It's not a DC, but it was an A/M 200 amp.

Truck didn't run but for a few seconds. I hope it's OK too. Seems to be a bearing.

 

So you saw the smoke and Killed it

 

Yup. Didn't even run for a minute.

 

Sounds like the diodes shorted, it happens

 

Sounded Electrical to me too

Its went up in smoke almost to fast for a Bearing to cause anything is Possible though

My old OEM did something similar I never saw smoke but alt was grounded out and when I turned the Key on it would Drain Batterys Very Very Fast

 

That sucks Tim how long had you had it?

 

It's about 4 years old. The bearings went out. It should be ready now.

 

Bearings, stator, and voltage regulator (just because I was open).

Mark, the FICM is fine. 47.5 to 48V on battery warming up and 48.5 on alternator after glow plugs kick off.

 

cool did you rebuild it TIM/???

Bearing must been frozen in there??

 

I didn't because the stator has to be soldered in IIRC, and I'm not good with a soldering iron. I have a shop here locally that's really good and really fast.

Ya know, Benny, I thought I heard it chirping when I first started the motor back up but it hasn't shown a bit of probem and it wasn't loose. That last run to Little Rock must have killed it cause it's been pretty much sitting ever since. Maybe that little "cold" snap we had locked it up and finished it off.

 

Im no good at Soldering either

Going to be doing the same thing you just did when mine goes out

 

That set of connections takes a BIG iron. The Soldering gun is the way to go.
If and when you ever have to deal with that set of connections.
It's good that you saw it before the bearings locked and really made a mess.

Sean