high amp alt problem...

[Strecker25 10+ year member]

i installed my motor city reman h/o alt today and upgraded the main cable to 0 gauge, everything looks fine

when the engine is running especially at low rpms the alternator whines like crazy, and will not at higher speeds. What could be a reason for this'? theres no rubbing, the alt spins fine when the belts not attached, and the belt itself is fine also. im stumped?

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[johnecon2001 5,000+ posts]

its a bad bearing. I've had alts do that before. It's not harmful to the alt itself just annoying as fcuk.

 

[Strecker25 10+ year member]

shitty, i do get a little vibration too..lifetime warranty is on the unit so what do u think send it back? or pop a new bearing in myself?

 

[bhsswrstlr 10+ year member]

send it back of course, or you want it now, try and take it apart and put the new bearing in

 

[iceteebone 5,000+ posts]

shitty, i do get a little vibration too..lifetime warranty is on the unit so what do u think send it back? or pop a new bearing in myself?

if they find out you tampered with the alt, your warranty will be history.

 

[johnecon2001 5,000+ posts]

yeah man, I would send it back. Putting a new bearing in is a pretty decently sized job. Not somthing you wanna fcuk up if you try to do it yourself either.

 

[Strecker25 10+ year member]

yea what a pain in my ass, did figure out how much power i freed up just by upgrading my alt to battery cable though, since i got the stocker back in now. im getting constant 13.8-14.4

itll be goin back soon, looks like that lifetime warranty is really helpin already lol

 

[deadboi77 10+ year member]

Theyre pretty good on returns and what not..I had a 165amp from them had for a few months and finaly started doing the same thing..sent it in 2 weeks later got it back,but i havent put it back in,think gonna just use it as a back up*I had another 180 alt*

 

[monte_carlo97 10+ year member]

thier customer service has always treated me well.

If i was you i would send it back. Replacing a bearing is a biatch.