alternator problems

[audiobahnuser18 5,000+ posts]

Bk battery is brand new .

 

[j3bus2k3 5,000+ posts]

the alt won't spin by hand. but like jeeper just told me 1600rms to a 100amp alt won't be good at all im gonna have to sell my system //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif Cause i don't have the cash to upgrade anything and still layed off some of the sadest new's i ever had to give

I ran 1500 off a 100A fine...with only an upgraded battery ground. Never had a problem...

And both were class a/b amps...much less efficient than class D amps...

 

[audiobahnuser18 5,000+ posts]

hmm...well my car is an 89 J3 and has over 144 thousand miles on it.

 

[j3bus2k3 5,000+ posts]

hmm...well my car is an 89 J3 and has over 144 thousand miles on it.

Mine was a 94 with 210k miles...still powered both fine when I dropped a cylinder...

Car's friggin bulletproof...except for the bullethole //content.invisioncic.com/y282845/emoticons/uhoh.gif.c07307dd22ee7e63e22fc8e9c614d1fd.gif

 

[audiobahnuser18 5,000+ posts]

oh **** well what could i do then? but this mechanic told me since i have my system and my fog light's is what drains my alternator slowly which i still find that hard to believe though.

 

[audiobahnuser18 5,000+ posts]

Alright guy's im going to have to go with a bigger alternator but would a 150 amp do it? i got 800 running to each sub would 150 amp instead of 100 amp alternator help???

 

[audiobahnuser18 5,000+ posts]

just called a place now near me they can build me a 165 amp alternator //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif will that help ?

 

[jdawg 5,000+ posts]

What store did you get your alternator? What brand? I ran about 1200w rms off of a stock electrical system with a quality battery and stock 100amp alt. Had some dimming but no major problems

 

[jaco 10+ year member]

bro if your alternator is locked up and won't spin at all

then you killed the bearings in it.

the cause of this is that you had the belt way too tight.

and another cause is the alternator was working very hard and built up alot of heat and killed the bearings.

 

[audiobahnuser18 5,000+ posts]

oh alright thx Jaco , i'll remember that incase if it ever happens again which hopefully it doesn't //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif. thanks for the information though man.

 

[jaco 10+ year member]

no problem

i used to work in a starter and alternator rebuild shop when i was in collage.

so i have some knowlage inalternators.

 

[audiobahnuser18 5,000+ posts]

oh alright then maybe u can help me with this jaco for the BIG 3 i need to run a fuse of course from the wire coming off the alternator's positive to the batterys postive terminal fuse and holder in the middle. but my question is what size fuse should i get? im going with anl fuses.

 

[jaco 10+ year member]

depends on how many amps your alt is.

if it's 130 amp then go to the fuse size bigger like 150 amp fuse.