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Fan belt diagrams

I just removed the alternator from my 2008 Yaris. The belt was squealing and thought I could put a little more tension on the belt by adjusting the alternator. I actually found the bottom mount bolt loose. I put about a 1/4 turn on it but it still wobbled. I took the bolt out and the mount hole seems elongated as is the hole on the alternator. Is this normal? If not how is it fixed.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 422 Answers

SOURCE: remove alternator from car 2002 ford focus

yes remove the mount bolt and drop the engine to remove the alternator

Posted on Aug 26, 2008

pakis
  • 86 Answers

SOURCE: squealing belt

Causes of problem like yours can be:

  1. the alignment of the pulley of your alternator and the alignment of your engine's pulley. you may check it by just looking at it, be sure they are precisely parallel with each other.
  2. The size of the opening of your pulleys, you try to measure it using a caliper, they should have the same mouth size
  3. loose pulleys causing wiggle
  4. rusts on your pulleys
Hope I helped you

Posted on Nov 24, 2008

  • 341 Answers

SOURCE: squealing NOISE possibly from fan belt

Belts stretch from new. Try to tighten them again. Hopefully the are not glazed or this may stay with you.

Posted on Dec 14, 2008

rick_amick
  • 69 Answers

SOURCE: Changing V belts on Nissan Frontier 2002 4cyl

That should be right if it is an idler pulley. On belts that do not have idler pulley you will have to loosen lock bolt on adjuster. Like alternator

Posted on Mar 24, 2009

  • 8 Answers

SOURCE: How to loosen alternator tension on a 2003 Lancer

I have not seen this vehicle but, the center bolt or nut that holds the tensioner to the block is backed off two turns first.
Then the adustment bolt (most are accesed from under the vehicle) can be adjusted to give enough slack to install the new belt.
If this is still too tight, remove one of the two or two of the three bolts that mount the Alternator to allow for another 1/8" and install the belt.
Then remount the Alternator.
Then readjust the tension bolt.
Finish with the bolt or nut that mounts the tensionor to the block.
good luck.

Posted on Jun 28, 2009

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If you specify the engine type of yours car I will send you the fan belt routing diagram!

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Step by step instructions replace alternator on a 2000 Lincoln Continental


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There are two bolts on the alternator:
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Regards,
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Hi,
I found these 3000GT/Dodge Stealth DOHC Serpentine belt diagrams on the link below...
http://www.stealth316.com/2-ac-compressor.htm

If you are re-using the drive belt, be sure to install it in the same orientation as it had before removal (same side facing the wheel well). Insert the belt from above. Turn it "sideways" to fit it in between the alternator pulley and the AC pipe. Correctly tension the drive belt using its tensioner pulley. Before installing the plastic covers and wheel, temporarily install the IC pipes and battery negative cable and start the engine to check the belt operation. If the belt squeals it is either misaligned or too loose. I found that my old belt squealed when installed "backwards" from how it was removed. It did not squeal when installed in the same orientation. If you have messed with both drive belts, spray a little water on one belt at a time to see which is squealing. A misalligned belt will stop squealing for a very short time after water is sprayed on it, but the squealing quickly comes back louder than before. If the belt is loose, the squealing will immediately get louder. Also note that there is just a little play in how the alternator bolts in. If misalignment is a problem, loosen all four bracket mounting bolts (this may require again removing an IC pipe), reposition the alternator, and tighten the bolts to see if this helps. Do not tighten the belt too much because this can lead to shaft bearing failure over time.

Here are some links concerning drive belt adjustment.
http://www.gates.com/brochure.cfm?brochure=1026
http://www.ridgeautoparts.com/tips/the_charging_system1_2.htm

http://www.utfleets.com/library/features/accessory_drive_belts.htm

ac-compr-drivebelt-manual.gif
Your Pal,
Annulusgear

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