Alternator blues

[merwood]

Hi all having prob with stereo, i have a 87 td jetta it has a 60amp alt when my system booms my lights totally go out and the on out and on, i no this is not good 4 the alternator....

so im wondering if an alternator 4 a newr A/C jetta 90amp might fit the bracket 4 the 87, any one done this or no if it can be done??????



any input will help...
:D

[Mr_Diesel]

No. 60 amps is totally sufficient... My VR6 has a 120 amp alternator. I am running power locks, heated seats which are 15 amps alone, daytime running headlights, power sunroof, a "booming" system, and it still doesnt chug the alternator... For an A2 with a few power options, and a booming system, shoudl be more then addequatly powered by a 60 amp alternator. I'd take the alternator and have it tested... Possibly check battery terminals.... If you want to upgrade to the TDI alternator, then you need a new bracket, and a serpentine belt setup:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2477268316&category=33573&sspagename=WDVW

that comes with the alternator, bracket, new pulleys and a serpentine belt... Everything you need to do the conversion... except a pulley and clutch setup for the a/c compressor.

A "booming" system will definatly stress the 60amp, and put it in premature failure... I've been through 3 alternators in 2 years with my diesels, but I was running 3 subwoofers, and aftermarket tweeters totalling about 3,000 watts too bad my **** got stolen... ANYWAY, i'd check battery terminals, remove the alternator and check for bad brushes or voltage regulator... Gotta make sure you got a good battery to take a constant charge from that alternator as well.

Get on aim if you got any more q's.

[Anonymous]

thanks, hd it tested its ok, its just the fuse holder is trying to draw 120amps from a 60amp alt, 2 12" 2000watts thats why i wanted 2 no that rocks though i might do that casue i do have alot of stuff running off it, my fogs, extraa rad fan ,invertor, heated seats, power windows, power moon, power locks, power truck, that prob doesnt help.

lol

[MKIIVR6]

Not to resurrect this post, I had the same issue back in the 8 valve days. I purchased a 1-farad capacitor which holds a constant charge from the battery, then feeding the amps I was running. I mounted this behind the drink holder in the middle of the backseat. 4-gauge wire from the battery to the terminal on the capacitor, then 4-gauge to a fuse block running the three amps and the crossover. I grounded the capacitor in the trunk near where I mounted it. No more fading lights! I think these capacitors run around $100.00, pretty much at any car audio shop. A good investment for any car-audiophile. They are faily large, a little larger than a 1-liter bottle of soda pop.

[MKIIVR6]

Not to resurrect this post, I had the same issue back in the 8 valve days. I purchased a 1-farad capacitor which holds a constant charge from the battery, then feeding the amps I was running. I mounted this behind the drink holder in the middle of the backseat. 4-gauge wire from the battery to the terminal on the capacitor, then 4-gauge to a fuse block running the three amps and the crossover. I grounded the capacitor in the trunk near where I mounted it. No more fading lights! I think these capacitors run around $100.00, pretty much at any car audio shop. A good investment for any car-audiophile. They are faily large, a little larger than a 1-liter bottle of soda pop.

[burn_your_money]

Not to resurrect this post, I had the same issue back in the 8 valve days. I purchased a 1-farad capacitor which holds a constant charge from the battery, then feeding the amps I was running. I mounted this behind the drink holder in the middle of the backseat. 4-gauge wire from the battery to the terminal on the capacitor, then 4-gauge to a fuse block running the three amps and the crossover. I grounded the capacitor in the trunk near where I mounted it. No more fading lights! I think these capacitors run around $100.00, pretty much at any car audio shop. A good investment for any car-audiophile. They are faily large, a little larger than a 1-liter bottle of soda pop.

That's what I was going to suggest buying

[burn_your_money]

Not to resurrect this post, I had the same issue back in the 8 valve days. I purchased a 1-farad capacitor which holds a constant charge from the battery, then feeding the amps I was running. I mounted this behind the drink holder in the middle of the backseat. 4-gauge wire from the battery to the terminal on the capacitor, then 4-gauge to a fuse block running the three amps and the crossover. I grounded the capacitor in the trunk near where I mounted it. No more fading lights! I think these capacitors run around $100.00, pretty much at any car audio shop. A good investment for any car-audiophile. They are faily large, a little larger than a 1-liter bottle of soda pop.

That's what I was going to suggest buying

[burn_your_money]

Not to resurrect this post, I had the same issue back in the 8 valve days. I purchased a 1-farad capacitor which holds a constant charge from the battery, then feeding the amps I was running. I mounted this behind the drink holder in the middle of the backseat. 4-gauge wire from the battery to the terminal on the capacitor, then 4-gauge to a fuse block running the three amps and the crossover. I grounded the capacitor in the trunk near where I mounted it. No more fading lights! I think these capacitors run around $100.00, pretty much at any car audio shop. A good investment for any car-audiophile. They are faily large, a little larger than a 1-liter bottle of soda pop.

That's what I was going to suggest buying

[Mr_Diesel]

those work really well... you'll gain some sound quality out of using that as well, cause the amp is getting the power it needs. 60amps though should be totally good... brushes are usually the thing that goes out in these alternators, so if you can learn how to swap brushes, very easy apparently, then you've got no problems.

[Mr_Diesel]

those work really well... you'll gain some sound quality out of using that as well, cause the amp is getting the power it needs. 60amps though should be totally good... brushes are usually the thing that goes out in these alternators, so if you can learn how to swap brushes, very easy apparently, then you've got no problems.

[Mr_Diesel]

those work really well... you'll gain some sound quality out of using that as well, cause the amp is getting the power it needs. 60amps though should be totally good... brushes are usually the thing that goes out in these alternators, so if you can learn how to swap brushes, very easy apparently, then you've got no problems.