Serpentine belt kit to remove AC on 1.6? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Serpentine belt kit to remove AC on 1.6? by RacerZX on 23 Jan, 2007 14:52
• Hey there all, I've got an '85 Jetta 1.6L NA with a whopping 400K miles on it.  While most everything works well, the AC is shot and honestly I could care less.  I'd like to remove it, but of course that *#$@ AC pulley drives the alternator...is there any kit out there to delete the AC and drive the alternator directly off of the crank pulley belt?  And BTW in case it matters, it's got manual steering, no PS pump as I've seen in other postings while searching on this subject...
• #1 by burn_your_money on 23 Jan, 2007 18:33
• well my cousins rabbit is rigged up with a longer pulley on the alternator. This allows all the other parts to remain on the engine without modification. The only downside is the belt is super long so it flaps around alot and wears out.
  The other and better solution is to get a non AC bracket and a non ac alternator and swap it on.
  PS or no PS only effects the WP pulley I think.
• #2 by veeman on 24 Jan, 2007 07:03
• I know that some people over in the gas world adapt the ABA (gas, 2.0 liter) serp system to the early 8V motors.  I'd love to see if it would work on the diesels, but I'm not exactly sure if it would be a direct swap.  This guy is selling a setup, but he says you'll have to use the mk3 alt.  Not sure if that sits in the same spot as the IP or what...
  
  http://forums.vwvortex.com/zerothread?id=3036068
  
  and another one... This one would definitely not work due to the alt positioning.  Just ideas...no relation to the sellers.
  
  http://forums.vwvortex.com/zerothread?id=2838416
  
  I've also seen someone use another type of import alternator (from a Nissan or a Honda) and some custom spacers to mount the alt like a non-ac setup with a serpentine, but again, that was a gas motor.
  
  Like you, I got tired of the a/c setup on my TD and with the intercooler going in, it was the perfect time to ditch that and do the non-ac setup.  It's not serp belt, but it's WAY less of a hassle than the a/c setup with the compressor.
• #3 by clbanman on 24 Jan, 2007 09:06
• You don't mean to drive the alternator off the timing belt do you?  My 86 Golf 1.6NA has no AC or PS.  The alternator is driven off a v-belt from the crank pulley.  It's stock so you should be able to find junkyard parts to do this.
• #4 by Black Smokin' Diesel on 24 Jan, 2007 16:55
• IIRC Malone was using the serpentine belt setup from a MK3 1.9TD on his 1.6/1.9 hybrid engine. I'd look into that.
• #5 by RacerZX on 24 Jan, 2007 17:39
• Thanks all.  I guess you're right, I don't necessarily need a *serpentine* belt, I'm more just looking to get rid of the AC pump and relocate the alternator apropriately.  Anybody know where to get the right bracket?  Junk yard the only option or would a VW dealer have it?
• #6 by monst on 25 Jan, 2007 13:30
• http://www.vwdiesel.net/phpBB/viewtopic.php?t=5171&highlight=
  
  I did mine about 2 or three months ago... it is a jetta but,
  I think the basic theme is similiar.... this link will go to some good
  ideas I used... Also I ended up just swinging it down on the same
  pivot with the ac removed.... I think I used the next size up
  alternator belt. and and alternator pully from a jetta gasser...
  and then for the adjustable swing I used a alt bracker from
  a bottom swing mopar alternator.... the only thing though
  is that I did have ps.... and I slipped this bracket into the
  bolt for the ps and grinded down the sleeve to compensate.
  Hope this helps...
  monst......
• #7 by burn_your_money on 25 Jan, 2007 14:44
• Quote from: "clbanman"

  You don't mean to drive the alternator off the timing belt do you?  My 86 Golf 1.6NA has no AC or PS.  The alternator is driven off a v-belt from the crank pulley.  It's stock so you should be able to find junkyard parts to do this.

  
  
  Nope, basically removing the v-belt and replacing it with a serp setup from a mk3.
  You do need a mk3 alternator for this setup because the mk3 style mounts have the 2 prongs that the mk2 alternator bracket has. (the upper mounting on non a/c car's is reversed)
  
  Here is an idea I've been thinking about for using the current NON-AC setup but with a better way to tighten the belt
  
  
  
  Instead of attaching the alt directly to the upper mount this would go in between. The center of the "dual reversing thread" bolt will be setup to accept a 13mm wrench. The lower bracket would remain the same. Most likely you would need to buy a longer belt.
  You'd turn the "dual reversing thread" bolt until the belt is tight enough and then you would tighten up the two "locking nuts"
  
  Thoughts?
• #8 by tylernt on 27 Jan, 2007 09:23
• Quote

  well my cousins rabbit is rigged up with a longer pulley on the alternator. This allows all the other parts to remain on the engine without modification. The only downside is the belt is super long so it flaps around alot and wears out.

  I've often wondered if a serpentine spring tensioner or even an idler roller could be mounted on the side of the engine via that little bracket that supports the timing cover, in between the run from the crank to the alt. Keeping that long run of V-belt under tension should reduce the flapping and would be easier than sourcing a non-A/C alternator bracket.
• #9 by monst on 31 Jan, 2007 14:23
• Tylernt,
    That tensioner idea is a good idea if it can
  be accomplished..... You mentioned having
  to get a non ac-bracket....... I didn't do this.
  I used the ac bracket... and the  90 amp alt.
  where the ac swung... I now swing the alt......
  
  I used the ac belt but, one size larger(one or two sizes).
  and then I grabbed an adjustable bracket off like a
  80's 90's mopar... v8.. motor......
  the mopar alt needs to have a top pivot(swings from 12 oclock)
   with a bottom swing.... (so the alt adjuster is below)
  this mopar bracket has a nice arc(curve) to it.....
  I am sure there are others out there to scavenge that will
  work just fine..... but, this is what I found.....
  it works good with this set up. Then I mounted this
  bracket in the vertical position to accomodate the
  alt being in the ac bracket....... in the vertical position
  I drilled a new hole in the bracket and unscrewed one
  of the bolts on the power steering. I also cut the spacer
  on the powersteering so the bracket could be lined up.
  So I took about an 1/8 inch or 3/16/ out of the spacer....
  for example:
  here is  the spacer   XXXXXXXXXX I use ten x's here
  to show the length of the spacer....... I cut out the
  thickness of the spacer...... in the correct location
                               XX  XXXXXXX  now I have
  two spacers....... insert mopar bracket and bolt
  back to gether.....
                               XX00XXXXXX.....
  hope that helps...................
   Also... the pully must line up..........
  I grabbed an alt pully off of a vw gasser........ it sticks out
  further... I may also have dropped a shim or two....... just
  make sure you put it together with an air gun..... there is
  no key way.... that bugged me when I took mine apart...
  though I lost it... nope.. it was never there.
      I got a camera.... recently... I could snap a pic or two...
  let me know if you would want some pics...
  
   mOnst
• #10 by burn_your_money on 31 Jan, 2007 17:26
• My alternators all have had key ways