1.6TD low on power

[Norsker]

Went out racing tonight (Smashed a GTI 1.8 mk2  ) and the engine was pretty happy doing burnouts and pulling up the hill we race on

I will be sending the turbo to a repair shop next week which will check it out for free.

Also i might be turning the boost down to 1.2/1.3 bar just for longevity. 1.5 Bar is a bit too much for the long run.. OR?

[Norsker]

Okay so if any of you know the ins and outs of the alternators on these mk2's please reply.
After a long time with testing and the alternator working, then not working i've got some info after doing my troubleshooting.
When i start the car up in the morning the alternator/belt squeals a lot, after warming up it subsides and my tach starts working.
i measure 13.6-7 volts and everything is fine, but then when i turn on the lights it drops to 13.3-4v. Still good tach works and so on.
HOWEVER
if i turn on any more than the lights, such as the blower or my wipers, the voltage drops dramatically down under 13 volts and the alternator starts squealing again.
So:
No electrics running: 13.6-8v
Lights on: 13.3-4v
Lights + other: 12.6v and a lot of squealing.

I'm this close to throwing the alternator in the bin as i can't find the voltage reg (i've seen it on Hella and Bosch alternators but can't find it.) and it's been a pain in the ass every day for the last 3 weeks.
If anyone has some knowledge about WHY this is happening, please do come forward.

[libbydiesel]

The squealing is from the belt slipping.  It's understandable that the voltage would drop dramatically when the belt is slipping.  First thing I'd do is tighten the belt a little.

[Norsker]

The tensioner bracket has a broken tooth....
I can't tighten it anymore than it already is, so all of my issues here might just be because i cant tighten the goddamn belt properly?
would it help with a shorter belt  ?

[libbydiesel]

Can you use a lever/pry bar to move the alt rather than relying on the teeth on the bracket?

[Norsker]

it just moves down to where the tooth stops it. We tried getting it to go over the broken tooth but we just cant get enough force on the tightening bolt.

[libbydiesel]

Post a pic so I can see what you're dealing with.  The toothed adjusters I have seen have teeth on the bolt or nut that match teeth on the bracket/adjusting arm.  Is that the case?  In that case, if there is a tooth missing on the bracket/adjusting arm, then you need to rotate the bolt/nut with matching teeth while you lever on the alt.

[Norsker]

My VW specialist mate fixed it 
Turns out me and my other non-mechanic mate were a couple of idiots, not tightening the 13mm nut inside the 22mm nut that rotates the toothed bolt on the toothed slide..
We took a pry bar and tigthened it up real good and all problems went away! even with ALL the electronics running on full power, theres no squeal!

Your reply helped a lot, we never thought it could be moved upwards just by loosening the 13+22mm and then prying it up.
Thanks for all the help so far to everyone! I never imagined such a friendly forum existed 

[Norsker]

On a new note, we have narrowed down the oil problems to a bad oil return line, previous owner swapped turbo but never the line, so we're pretty sure it's filled with crap.
Are there any kits available for the K14? or does anyone know the sizes so i can custom make a bigger line