Does anyone have a DIY on changing the alternator belt on a 91 jetta 16V? Im new to the VW club and can't figure out what to do. I purchased a Bentley manual but couldnt find any info on it.
I don't know if this will help but in my Diesel w/AC
Loosen alternator adjuster pulley.
Remove top bolt holding in alternator.
Remove bottom bolt of alternator.
Now there are two bolts to loosen the AC compressor now accessible with the alternator out. They are on opposite sides.
Once they are loosened there should be a bolt above the right nut/bolt you loosened on the compressor.
In some cases the compressor should drop when you loosen the bolt. In my case my compressor doesn't work and it doesn't budge so I take a wooden board and hammer to force it down. Probably not recommended if your AC works.
After that you can now remove one end of AC belt, then remove the alternator belt.
For re-installation follow backwards.
Hope this helps. May not be the same as everyone else but that's how I do it.
It does, you might not be looking in the right part. it's at the beginning IIRC, the engine or maintenance section. Or maybe in the individual sections for each part 9alt, ac, and ps).
Either way, the above is mostly correct. I don't think you HAVE to remove the alt, though it does help since most AC compressors are well stuck. Later models (like your 91 16v) should have a ratcheting gear bolt for the compressor. When you loosen the rear bolts, then the front bracket bolt, you should be able to turn a bolt with a gear on it that pulls the AC compressor down to loosen it. Same with the alt when you are re-assembling.
Don't forget the ps pump, which has a ****ton of bolts to loosen it. Two on the back (one visible, one recessed in the mounting bracket, by the thermostat), the tightening bolt, and the thing that bolt tightens into. That should be all you have to loosen to get the pump to move to get the belt off. Sometimes it helps to just remove them all and take the pump off too, since it's the outermost belt and can hold the other hostage.
The magic trick is that once the AC compressor is loosened and the belt taken off that pulley (but still trapped on the car by the crank and wp), the alt belt will be freed
Would it be a good idea to change the ps, ac, and alt belts at the same time?
Right now I'm just trying to get the car back on the road and until I get a garage in my apt complex, I don't want to do any work that requires the car being jacked up to reach anything.
it would be. TO get to the PS stuff the car does need to be jacked up. you can do it on a quick hydraulic jack if needed, just make sure to keep your face out from underneath for safety reasons do it at the same time as an oil change and it won't take but 10 minutes longer. Do it while the oil is draining.
Did you losen the bolt that holds the adjuster to the head? Don't have to take it off, just enough so the arm swings up.
Does it move up and down? You do have to sort of yank it out, the ear on the back right has a sliding bushing that clamps down on the bracket and can be hard to remove.
It moves up and down as far as towards the engine and and towards the front of the car. I noticed that bushing on the right hand side. I'll try again tonight. I kno there's a way to do it without taking out the alternator but it seems much easier removing it. How hard would it be to put it back in if it's a pain n the ass to get out?
It'll be easy.
Should be 4. Two 8mm allen head in the back (loosen, don't have to remove), and 2 in the front (both connect to the adjusting bracket, again don't have to be completely removed, just loosened).
You can, that helps you move the compressor. on older cars it's just 4 bolts. On newer cars the front left bolt has that gear. Still need to loosen them all, but then turn the bigger gear bolt and it'll move the compressor for you.
I know this is an old thread, but I'm having issues swapping my alt belt out.
It's a 91 2.0L 16v Motronic with P/S and A/C. I've done everything you guys stated, but my A/C pump doesn't drop enough to get the belt off. Looks like the clutch pully is hitting the water pump pulley.
Do I need to loosen/remove the power steering pump from underneath then?
Is it possible anyone could post a pic of the bolts I need to remove? I took a look at the P/S pump and it looks like there's a pretty large bracket attached to it (visa versa). All those bolts need to come out? Here's a pic of mine."
Long story short - I have a custom 200A alternator (Excessive Amperage by Nate) that came with a custom billet pulley. As nice as the pulley is, it won't work because it doesn't have the offset needed to line up with the other pulleys. When I towed the car down to the shop to have an electrical issue figured out, for whatever reason they put on a shorter alternator belt for the custom pulley (I did not ask them to do this), now I have to swap in a longer belt so I can put a stock pulley on the custom alt.