alternator belt/timing belt

  1. L-plater Joined: Sep 2009 bakewell Posts: 60 ford fiesta zetec, use to have vtr
    #1
    hey guys, iv been having a screaching noise from the fan belt, it use to happen but no where near as loud and ofen, i was wondering whether there would be a way to tell which belt is whining either the timing or the alternator belt? iv just removed the alternator belt and theres little cracks all the way round it, the grooves have become very thin compared to my new one, and theres one little hole between the grooves hopefully this myt be the belt, if not ill need a different belt for the camshaft?? thanks alot
  2. L-plater Joined: Sep 2009 Posts: 46 SAAB 9-5 2.3T auto SAXO 1.4sx auto
    #2
    It sounds like a fan (auxilliary) belt to me. I wouldn't have thought you'd get screaching from the timing belt as screaching usually comes from the belt slipping on the pulley, often when it is a little loose or worn.

    It seems like the belt was on the way out so worth changing it.

    On a SAAB I used to own, an idler pulley on the aux belt failed. This caused a kind of screaching noise as it was failing. I doubt its the same with your situation, but might be worth keeping in mind.

    Good luck,

    Mike
  3. L-plater Joined: Sep 2009 bakewell Posts: 60 ford fiesta zetec, use to have vtr
    #3
    cheers mike, i removed the belt examined and fitted my new one, however the screaching is still there, iv brought a timing belt id thought id have a go at fitting
  4. L-plater Joined: Sep 2009 Willenhall Posts: 61 Citoren Saxo Posiden Blue Vtr Spec 1.1
    #4
    you probs havent done the fan belt tight enuf my snaped a college had 2 fit a new 1 n i done it tighter than before n it stoped screeching so make sure its tight jst not 2 tight b4 u change the timing belt cz it cud all go rong 4 u m8
  5. L-plater Joined: Sep 2009 bakewell Posts: 60 ford fiesta zetec, use to have vtr
    #5
    quite a while ago but this actually was shagged cv joint, boot had ripped grease leaked and eventually knackerd
  6. Established Member Joined: Dec 2009 Bolton Posts: 1068 Saxo 1.4i sx
    #6
    timing belts dont screech but they can whine if they are too tight- but that would happen from day 1 of fitting. Did you fit the auxiliary belt tight enough? just try pinching it up a little. Also could be a pulley as mentioned above.

    Also water pumps make a screeching when they fail?
  7. Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.
    #7
    Don`t rule out the alternator bearings making a screeching sound.

    Steve.
  8. Frequent Poster Joined: Feb 2010 taunton,somerset Posts: 506 Posi blue saxo vtr Gold vtr
    #8
    you do no that this is dated 2009?
  9. Established Member Joined: Dec 2009 Bolton Posts: 1068 Saxo 1.4i sx
    #9
    How did you notice that? Are you some kind of geek? lol
  10. Infrequent Poster Joined: Mar 2011 Staffs Posts: 102 2002 furio 1.4
    #10
    what where and how do i check if my timing belt is responsible for my whiring noisse, as it doesn't sound like a typical fan belt screech and my altenator belt has just been tightened(perhaps too much??)
  11. Infrequent Poster Joined: May 2011 Cambridge, dartford, glasgow Posts: 212 98 MK1 VTR
    #11
    Loosen the belt off slightly it should be roughly 5mm play when pressed in the middle between the crankshaft pulley and alternator pulley
  12. Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project
    #12
    can't u just run it for a couple of mins without the alternator belt on see if its still doing it then rule it out? sorry if thats already been said havnt read all the posts through
  13. Infrequent Poster Joined: Mar 2011 Staffs Posts: 102 2002 furio 1.4
    #13
    will try both suggestions thanks guys