Sommer86

iTrader: (46)

Hi guys, I was wondering if you can tell me the easiest way to pull the alternator pulley while it's still on the car.....and with no power tools.

I've looked everywhere but all I see is removal with the alt. out. Also, is the bolt holding the pulley on keyed with a Torx head or an allen head?

Do I need tons of pounds of force? What direction is the thread pitch?

I'm trying to install my Alt. underdrive pulley to keep my gauge lights from flickering and my turn signals flashing a bit quicker.

Thanks boys!

bayer-z28

iTrader: (14)

I always used a leather glove and a an impact, but you said no power tools.

Try this, put the belt alone over the pulley and and kind of use that as a "handle" by pinching the belt. Or if you don't mind trashing your belt, keep the belt on it and get a big vice grip to hold the pulley without marring it.

01ssreda4

iTrader: (96)

You just need to spin the nut without the pulley turning. It is not keyed. It has a shoulder to sit on and when the nut is tight it puts the pulley in enough of a bind that it wont slip under normal conditions. Holding it still while creating enough force to loosen it will be tough. However, that may be what the allen head is for to hold the shaft while you loosen the nut. I used an impact though

Pocket

iTrader: (22)

Use an old belt and vice grips. Even worn out belts have a substantial amount of grip

99Bluz28

iTrader: (35)

I ground two flats on the socket and held it with a 18" crescent wrench, I then used some large vise-grips to clamp onto the allen-wrench to hold it still while turning the crescent wrench.

Sommer86

iTrader: (46)

Nice. Thanks for the tips....keep 'em coming guys.

7th Darkness

iTrader: (15)

I just used an old belt, clamped together with vice grips and it came off that easy.

Sommer86

iTrader: (46)

^^ install is just as easy?

7th Darkness

iTrader: (15)

Yeah I didnt have any trouble.

01blzxtreme

iTrader: (9)

i believe its a torx 50, and a 15/16 wrench....
its a lil late, but might help ffor future reference to others...
yes its a different motor, but works for ls alternators, i just ordered the tool for my corvette alternator on my 5.3 from metalnerd...

farmington

iTrader: (14)

An underdrive pulley will SLOW down your alternator, putting out LESS juice. If you think your lights flickered before, it'll be worse now.

01ssreda4

iTrader: (96)

He didn't say underdrive pulley, he said alt pulley, as in overdrive alt pulley.

Sonic Force

I've got the same problem... which way should I be trying to turn the nut on the pulley bolt to remove it? In other words, is this a reverse thread? I can't get the darned thing to turn in either direction at the moment.

99Bluz28

iTrader: (35)

IMO, you're better off raising the engine idle speed (especially with at A4 transmission which has a lot lower engine idle rpm) then swapping to a overdrive Alt pulley.
With a 25% OD crank pulley and a A4 trans just raise the idle speed, 25% higher and your alternator will be back to normal engine idle speed.
If you have a M6 trans you shouldn't have any low amperage issues unless you battery cables need replacing(do the BIG 3). Some alternators also need to see at least a set amount of rpm's before the alternator will turn on. So if that's the case try getting the engine rpm's slightly over 1000rpm for a second after starting it up.