Classic Hymer B544 "fan" Belt - Keeps Shredding

Discussion in 'Tech/Mech General' started by Gingaboots, Jun 8, 2015.

  1. Gingaboots

    Gingaboots Read Only Funster

    Joined:
    Jun 26, 2014
    Messages:
    17
    Likes Received:
    2
    Location:
    Dover
    Hi all,

    I am currently in the process of recommissioning a 1987 Hymer 544 - Fiat 2.5d based (non turbo).

    I am now on my 3rd alternator/aux belt in about 500km. I pulled this van out of the hedge it had been parked under for 5 years a few months ago and got it running and MOT'd. Now running fine (after slipped diesel pump timing....another story!)

    Now the van seems to be eating aux belts...they squeal, slip then shred. Have tried different lengths etc, re-tensioning...all failed so far.

    Has anyone got a definitive length, width, depth etc for these belts or any other ideas?

    I am going to check all pulleys again. Is it possible the alternator could have been incorrectly re-fitted after cam belt work (s) were done....I haven't tried taking this off yet, does it have shims etc?

    Thanks for any help, hints and tips

    Cheers
    Chris
     
  2. Wildman

    Wildman Read Only Funster

    Joined:
    May 30, 2008
    Messages:
    15,458
    Likes Received:
    8,598
    Location:
    Ilfracombe, Devon
    alignment first thing to check then pulley for wear and make sure belt is the correct width.
     
    • Like Like x 2
  3. dabhand

    dabhand Funster Life Member

    Joined:
    Feb 19, 2014
    Messages:
    1,408
    Likes Received:
    2,465
    Location:
    Staffs
    Is it the type where the belt goes round the water pump pulley as this can run out of kilter when bearings gone and shred belts?
     
  4. gus-lopez

    gus-lopez Funster

    Joined:
    Aug 18, 2014
    Messages:
    4,347
    Likes Received:
    7,914
    Location:
    Lorca,Murcia,Spain
    Alignment first & then check whether any of the pulleys have bearings starting to seize, breaking up etc; as others have posted.
     
  5. Gingaboots

    Gingaboots Read Only Funster

    Joined:
    Jun 26, 2014
    Messages:
    17
    Likes Received:
    2
    Location:
    Dover
    Well I got under the old bus tonight and there is a definite offset to the alternator...I have managed to pinch back about 5mm or maybe a little bit more, though it is still out on exact alignment there is no other way of getting it any better. Fingers crossed this will be enough to stop the shredding!
     
  6. Stealaway

    Stealaway Funster

    Joined:
    Jan 8, 2013
    Messages:
    943
    Likes Received:
    1,090
    Location:
    Dronfield - Derbyshire
    Try a 'Gates' belt (from Partco) you might have to order it but they are the very best
     
  7. tonyidle

    tonyidle Funster

    Joined:
    Aug 6, 2013
    Messages:
    2,866
    Likes Received:
    2,684
    Location:
    Kendal, Cumbria
    Alignment should be precise - it was originally. It should be automatically correct with the front alternator mounting lug abutting the lug on the engine. If it isn't (perhaps because of an incorrect alternator fitment in the past) you should be able to correct it by shimming and/or an alternator pulley spacer. If it is misaligned with the alternator pulley too close to the engine block you need to replace the alternator. Misalignment will dramatically shorten belt life - more than a mm or so & you'll be able to measure its life in minutes.
     
    • Like Like x 2
  8. DP_JAY

    DP_JAY Funster Life Member

    Joined:
    Mar 17, 2010
    Messages:
    1,797
    Likes Received:
    1,022
    Location:
    Cark, Cumbria
    I didn't think Partco existed anymore?
    All the ones in this area closed down ages ago
     
  9. jockaneezer

    jockaneezer Funster

    Joined:
    Dec 12, 2010
    Messages:
    1,588
    Likes Received:
    3,058
    Location:
    Cumbria
    Check and see if the alternator pulley is fitted the correct way round, some have an offset on them, unless it's a freewheel type, but unlikely on your model.
     
  10. Stealaway

    Stealaway Funster

    Joined:
    Jan 8, 2013
    Messages:
    943
    Likes Received:
    1,090
    Location:
    Dronfield - Derbyshire
  11. Flamenca

    Flamenca Funster Life Member

    Joined:
    Jun 21, 2013
    Messages:
    755
    Likes Received:
    452
    Location:
    Cornwall/France/Spain
    Have you resolved the problem with your alternator belt? Have you managed to remove/replace the alternator from underneath the engine?
     
  12. Gingaboots

    Gingaboots Read Only Funster

    Joined:
    Jun 26, 2014
    Messages:
    17
    Likes Received:
    2
    Location:
    Dover
    Fitted new Gates belt yesterday. Used straight edge across crank pulley & alignment looks pretty much spot on with alternator now....fingers crossed for shake down trip on Friday night. Will carry tools and spare belt!
     
    • Like Like x 1
  13. Allanm

    Allanm Funster

    Joined:
    Jun 30, 2013
    Messages:
    3,032
    Likes Received:
    4,100
    Location:
    Cotes d'armor, France
    Where are you off to? France is only 35 minutes away.......
     
    • Like Like x 1
  14. Flamenca

    Flamenca Funster Life Member

    Joined:
    Jun 21, 2013
    Messages:
    755
    Likes Received:
    452
    Location:
    Cornwall/France/Spain
    Do you have the full reference for the Gates belt?
     
  15. Gingaboots

    Gingaboots Read Only Funster

    Joined:
    Jun 26, 2014
    Messages:
    17
    Likes Received:
    2
    Location:
    Dover
    Hi Flamenca,

    Yes, accessed from below without a problem (with the van up on paddock ramps) - I will dig out the part number for you.

    AllanM - staying this side of the wet stuff for the moment!
     
  16. Allanm

    Allanm Funster

    Joined:
    Jun 30, 2013
    Messages:
    3,032
    Likes Received:
    4,100
    Location:
    Cotes d'armor, France
    At Margaret's at Cliffe by the Dover Patrol monument is nice for a day out if you aren't going too far..
     
  17. Tootles

    Tootles Funster

    Joined:
    Sep 14, 2013
    Messages:
    8,940
    Likes Received:
    30,785
    Location:
    Lancaster
    'V' belts are indeed strange animals. Everything comes back to the actual 'V' angle of the belt to pulley, and unfortunately, once a belt shreds, its too late to do a post mortem. Apart from having the 'V', that bit really does nothing else but act as a guide for the main load bearing component, that bit at the bottom between the two 'V's. However, if the alignment is out, one side of the 'V' will start to wear, something it's really not designed to do.
    Bet it's sorted now, unless you have a twisted pulley, or a bearing problem with the alternator.(y)
     
  18. Gingaboots

    Gingaboots Read Only Funster

    Joined:
    Jun 26, 2014
    Messages:
    17
    Likes Received:
    2
    Location:
    Dover
    Part code for the belt 6216MC (avx 10 x 900 la) - is a tight fit to get on.

    Heading over to Birchington (2 Chimneys Park) for a gig on Friday night...will be able to have a couple of beers with the chaps and have a comfy bed. Will pack tools and spare belt :)

    Just need to sort out the hook up and 12v electrics now!
     
  19. Flamenca

    Flamenca Funster Life Member

    Joined:
    Jun 21, 2013
    Messages:
    755
    Likes Received:
    452
    Location:
    Cornwall/France/Spain
    Thanks for the belt code. Hope you sort the electrics.
     
Loading...

Share This Page