alternator wires

[Gamesy]

Where do the 2 wires that attach on the screw on top of the alternator connect to?

i need to replace mine since thye are completely corroded.

thanks

[BoxerFanatic]

I am doing the alternator wiring upgrade as soon as my ordered alternator arrives.

SVXCESS wrote it up, and it is around here, readily available for a search.

But the basics are, if I am not incorrect (and please correct me now, if so), that those two white wires get cut back to a point where they aren't baked to brittleness, and capped together, and insulated.

Then new 4 or 2 gauge wiring installed from the alternator, to the battery's positive terminal, with a MegaFuse inline, near the battery.

I am probably going to replace the battery ground lead and engine ground strap, with the same gauge of wire, as well as possibly digging into the fusebox, and replacing the leads from there to the battery terminals, as well.

Then the only thing left for wiring on the SVX is to track down an intermittent short with the windshield wipers when it is raining.

[Gamesy]

good to knew since i'm looking at getting a 160A one but i need to replace the cable cause its all corroded, and looks like it runs into the fender so b4 i start taking stuff apart i wanna know what it connects too

[BoxerFanatic]

I've ordered the Maniac Motors 160amp alternator, but there seems to be some delay with the shipping.

I inquired about it, am hoping it will be cleared up soon.

[svxcess]

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MY original alternator configuration writeup can be found HERE


http://www.subaru-svx.net/forum/show...9&postcount=84


You will need to add the larger power wire and the 2 larger ground wires if you are using the 160A alternator. You could just add them into the circuit with the original wires left in; the current will follow the path of least resistance and flow through the new wiring, not the old corroded wiring. But cutting them back and splicing is better


Here is the schematic. I removed the two white wires from the alternator (circled in green) cut them back and spliced them together. Add the new power cable and fuse (shown in magenta) and new grounds. This circuit maintains all the factory fusing.







Since one of the white wires is the charging wire from the alternator to the battery, you must add the new charging wire to take its place, if you are going to cut and splice the old ones together

[BoxerFanatic]

Thanks again, Svxcess.

Just as a clarification... two new grounds...

That is from the chassis to battery, and engine to battery, right?

Can it be accomplished by a grounding strap and a large-gauge negative battery lead, both anchored to the chassis at the horn bracket, just in front of the battery?

Or should the engine grounding strap, and chassis ground both need to terminate at the negative battery post clamp? Does it make an electrical difference?

[svxcess]

Originally Posted by BoxerFanatic

I've ordered the Maniac Motors 160amp alternator, but there seems to be some delay with the shipping.

I inquired about it, am hoping it will be cleared up soon.

That's because they have no cores left. Many have been buying alternators and not returning their old cores for rebuilding. I have posted this problem many times. This hurts all of us.


http://www.subaru-svx.net/forum/show...3&postcount=21

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[BoxerFanatic]

Originally Posted by svxcess

That's because they have no cores left. Many have been buying alternators and not returning their old cores for rebuilding. I have posted this problem many times. This hurts all of us.


http://www.subaru-svx.net/forum/show...3&postcount=21

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I've got a core, and absolutely counted on sending it in with the RMA to be included. I wouldn't even mind sending it first. The car is grounded anyway, with a flat, as well as not being able to run more than a few minutes without draining the battery as flat as the tire.

I am not sure what turn-around time they usually have, but I'd wait a reasonable amount of time.

I think it is a bit odd that they charged my Paypal, and booked UPS, but not a peep from them about the backlog, even over the last two business days since I sent a message.


But I just received my new Continental ExtremeContact DWS tires this afternoon, and would like to have the SVX back in 'fighting shape' by the end of the month, which is why I started placing orders at the beginning of the month.

Because then the Legacy has to go down, and get it's new dampers and bushings installed. (which I am also thinking of tackling myself, too...) I have been putting off maintenance a bit due to money, and it all has to get done before winter.

Thanks again, for all the helpful information. I also took your recommendation on the littelfuse MegaFuse, and just got the 175-amp fuse today, and the fuse holder and large-gauge crimper came late last week.

I hope your modification is going well, too Gamesy. I completely understand about the budgetary concerns.

[svxcess]

Originally Posted by Gamesy

good to knew since i'm looking at getting a 160A one but i need to replace the cable cause its all corroded, and looks like it runs into the fender so b4 i start taking stuff apart i wanna know what it connects too

just cut the cables back to where you have fresh copper. they should not be corroded all the way back.


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