Alt. not charging

[Got Boooost]

Hello Guys,

I just recently got my 98 TSi running after completing the engine rebuild, during which i relocated the battery to the trunk. Now my alternator isnt charging my battery.

Ive checked all fuse's and connections, everything seems fine. when i did the battery relocation, i ran a 2 gauge wire from the battery in the trunk to the starter, ran a ground wire from the battery to the trunk floor, also ran a ground wire from where the bell housing meets the engine block to the fire wall. then i ran an 8 gauge wire from the starter (where the pos. cable bolts up) to the fuse box under the hood.

Im not sure if this set up could cause my alt. to not charge.

anybody have any ideas?

thanks for the help.

Vern

 

[DSM1G90]

what about the 12v wire to the ALT? Have you got 12v going to the bolt on terminal that attaches to the rear of the ALT?

 

[Got Boooost]

The 8 gauge wire that i ran from the starter to the fuse's under the hood included that wire to the alt.

one thing i forgot to mention i put a 150amp braker on the positive cable. not sure if that could cause some charging problems?

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Vern

 

[LunarEclips]

is the plug on the altenator still plugged in?? there's also a small ground wire that screws on to ALT. next to the plug....

 

[DSM1G90]

I'd take out that breaker and just do a simple cartridge fuse with the same AMP rating as what the main fuse's rating is..which I think is 80A.

For if you go larger than what is rated for the ALT, the car could catch on fire real bad, overloading all of the stock wiring, being that the breaker AMP rating is larger (150A) than the stock AMP rating-it's like not even having a fuse at all in the circuit.

ALSO, DC needs the quick sudden break of a simple one-time fuse while a breaker doesn't have that quick response as the fuse does. Plus, there could be some resistance using that breaker.

You could have toasted your ALT with that breaker setup along with the long 2g wire run. Might have to take it out, take it to an ALT shop and have them chek it out for you.

Plus, running 2g, it all depends how many strands per diameter are in that wire, for less strands means more voltage is needed for the same current run -major resistance factor there.

This is what a lot of people do is put a load on an electrical circuit at home when they think the wiring can hold it. But, when finding out that the load is too heavy for the circuit, they get the crazy idea of putting in a larger breaker in the panel to handle the larger load, "POOF" up goes their home in flames due to electrical fires. Remember seeing old movies of homes that used the glass screw-in fuses and the owners would put a penny behind the fuse to complete the circuit...and that house goes up in flames shortly afterwards??

Do the best to keep things close to stock when it comes to electricity - both AC and DC.


- good luck - DSM

 

[LunarEclips]

i agree with not using the breaker. They suck and sometimes pop for no reason. Plus i would downgrade to a 100amp ANL fuse. 150 is too much if you ask me. Everything else is fine though.