Ok. Recently i asked about my heater and noone said anything about my alternator.

To day i noticed that when the lights are on and i turn the indicators on (while the cars running) the dash lights dimm as the indicator flashes.
Also when i use the air cond. on anything but boost the fan tends to fluctuate randomly.

Is my alternator f**k?
I think all the things like that are going to go soon because its done nearly 300km and its only got a new water pump in that time. I also think the air cond. compressor and power steering pulleys are making some noise.

I think the brushes are on there way out .but first take to a auto sparky and get them to do a volt cheak for you and then his way you will know what it is

it could just be a voltage drop, check alternator voltage and battery voltage.
even a bad earth will cause this.

Yeah voltage drop or stuffed regulator.

vote numero duo for that.
I put on another earth strap, from neg to chassis.
Turned out it was the reg.
Can you hear the belt slipping when the voltage drops?
Could be a loose belt too.
Does the voltage ever go nuts, just on its own, for no apparent reason?
That'd the regulator.
Check your earth first, a second earth won't do any harm anyway, definately helped prevent voltage drop through my stereo.