I need to replace a serpentine belt on an 89 honda accord what is the most critical part that i need to watch for?and what specific tools do i need? any suggestions would be much appreciated

To let you know I found these links with a google search for (2006 honda accord v6 belt diagram)
2003-2007 Honda Accord Serpentine Belt Replacement (2003, 2004, 2005, 2006, 2007) - iFixit Repair Guide
Video on how to change belt. Near the end of video he shows diagram.
How to Replace the Serpentine Belt on a 2003-2007 Honda Accord 3.0L V6 Step-by-Step - YouTube

2003-2013 Honda Accord V6 Accessory/Serpentine Belt Replacement - YouTube

No special tool.

If it has a Serpentine belt then it only has one belt unless the timing chain is a belt but no you dont.

My first impression would be the serpentine belt is worn ...specifically it has "glazed" and stretched so it no longer has the ability to effectively grip the drive pulleys it spins. Typically when the serpentine belt loses "traction" it will squeal as it slips on the metal pulleys of the accessories it is designed to operate. There also may be a problem with the the tensioner ...a device used to keep proper tension on the serpentine belt. This is an easy and relatively inexpensive repair ...probably cost between $100 and $200 ...depending on whether the tensioner needs replacing.
You really need to get this fixed. If the serpentine belt fails ...it breaks or comes apart ...you will lose power steering and the water pump as the two critical accessories the belt operates. Obviously the loss of power steering can make the car difficult to drive and the loss of the water pump will cause an engine overheat condition fairly quickly. The A/C and alternator will also drop off line but these aren't as critical as the steering and water pump.

see the following site that I found by googling "2000 honda accord serpentine belt replacement" You will need to know what engine size and whether you have AC.
https://www.google.com/search?q=2000+honda+accord+serpentine+belt+replacement&client=firefox-a&hs=zDs&rls=org.mozilla:en-US:official&tbm=isch&tbo=u&source=univ&sa=X&ei=ylF4UoS5O6zfsAS8oYCgAg&ved=0CFgQsAQ&biw=1280&bih=896

alldata.com
old post but here is the answer to that and 10,0000 other questions.

Nothing is fast,but could be easy with the know how and right tools.Does it have a serpentine belt,thats one big belt that covers everything that turns...or 2 or 3 separate belts,,,,,,,,,serpentine belt is easy and faster.

2002 Honda Civic SI 2.0L MFI VTEC DOHC 4cyl

1. Place a long-handled, boxed-end wrench or a belt tension release tool (A) on the drive belt auto-tensioner from above the engine. Slowly turn the wrench in the direction shown to release the tension, then remove the drive belt.
   WARNING This is a hydraulic type auto-tensioner; you must turn the wrench slowly.
2. Install the new belt in the reverse order of removal.

Fig. Removing the serpentine belt-2006 Civic with 2.0L engine shown




Fig. Move the auto tensioner (A) to remove the serpentine belt (B)-S2000



Fig. Move the auto-tensioner (A) using the belt tension release tool to relieve tension from the drive belt (B), and remove the drive belt-Accord with 2.4L engine



Fig. Move the auto-tensioner (A) using the belt tension release tool to relieve tension from the drive belt (B), then remove the drive belt-Accord with 3.0L engine

I hope helps with this. Good luck.

There probably won't be any adjustments. Serpentine Belts have be used for 25 or 26 years to my memory ,and have spring loaded tensioners to keep belt tight. So I quess your new to the car world. You release the tension with a long 1/2" Drive ratchet or tool specific for belt replacement. If you need to buy any tools you don't have, your better off leaving it to the pros

You will need a serpentine belt tool to do the job properly. You attach it the the belt tensioner, and pull it to loosen up the belt.