Cambelt Older Than You Think?

Discussion in 'Tech/Mech General' started by joggerman, Mar 31, 2010.

  1. joggerman

    joggerman Read Only Funster

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    I have a Fiat Ducato, but think this post applies to all makes so I've posted here.

    I know that we should replace cambelt and kit at so many years or so many miles etc, but, when motorhomes are first registered, often they are the previous year's model.
    In addition the base vehicle has often beem made 1 or 2 years previously and has been sitting in the Fiat (or whoever) yard awaiting sale.

    So my point is that the cambelts have been ageing for some time when we first get our new vehicle.

    Once it has it's first cambelt replacement, we know when the clock starts ticking, but on a new van?????

    Any thoughts?
     
  2. hilldweller

    hilldweller Funster Life Member

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    Yes, you are paranoid.

    But it's a very good point.
     
  3. VMax666

    VMax666 Read Only Funster

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    Ducati motorcycles ( not Ducatos!) have cambelts replaced at 12000 miles or 2 years. Have replaced on a new bike that had not been run but was over the 2 year limit and it is surprising the "set" the cambelts takes because they are under tension in the same position for a long period. I would write or email the manufacturer to get written clarification as if it failed outside their replacement criteria you would have no warranty comeback. VMax
     
  4. davejen

    davejen Funster

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    If you're worried get it changed -then you are sure!
    Cheers, Dave:thumb:


    Or buy a Merc!
     
  5. gixermark

    gixermark Read Only Funster

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    +1 !

    Far cheaper to change the belt ( £150 - £250 ) than have the engine repaired when it does snap ( £1000+ !!!! ) Also, choose the right garage, get all pulleys changed at the same time ( they come in a kit along with the belt ) and you should receive 12months warranty if it does snap ................ I did !:thumb:
     
  6. pappajohn

    pappajohn Funster Life Member

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    i reckon a 'boxed' cam belt will have a much greater lifespan than a belt in regular use.

    when in use it will be subjected to tension changes, temperature changes(often extreme) and abrasion/wear.

    fitted to an engine that isn't going to be run for maybe a couple of years in storage isn't any different than being in its box on a warehouse shelf.....no significant temperature or tension changes and definitely no wear.

    and importantly, no UV deterioration.
     
  7. VMax666

    VMax666 Read Only Funster

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    pappajohn, you would be surprised how much tension they are under when installed new. That is why new tensioners are fitted when belts are replaced. The tension on a new belt will destroy old bearings in no time. VMax
     
  8. hilldweller

    hilldweller Funster Life Member

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    They are still making them out of tagliatelle are they.
     
  9. VMax666

    VMax666 Read Only Funster

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    NO, Now Kevlar, haven't seen one break in service and at 10,000rpm very messy if they did, desmodromic or not. VMax
     
  10. pappajohn

    pappajohn Funster Life Member

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    agreed but the op was asking about time lapsed between belt fitted at factory and first road use.

    apart from being pre-tensioned it has had no use.

    the pre tension is about the same as a grooved alt/pump drive belt
     
  11. joggerman

    joggerman Read Only Funster

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    No, not me thats paranoid. It's the people who insist that the cambelt must be changed at an earlier date than the X number of years stated by the manufacturer. I am simply making an obvious deduction based on their paranoia.
     
  12. gazz

    gazz Formerly "gazznhelz"

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    each individual has to make their own mine up,

    me, i change my cam belt every 5 years or 50k miles, i'm in the process of changing it right now, well done the belt cost me 38 quid... cheaper than a 3.5 grand engine re-build, but i'm getting the injection pump and injectors re-calibrated whilst i have the front of the van off)

    some people change them every 2 or 3 years, some every 7,

    the biggest thing that affects a amelts life is getting oil or coolant on it, sometimes wen a belt breaks prematurely, there's a leaking seal under the cam belt cover that hasnt been spotted, or the person changing the oil spills half a litre down the cam belt housing every time,
     
  13. hilldweller

    hilldweller Funster Life Member

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    I'm in that class. Fiat seem to give an absurd oil life based on liquid gold oil from them. I use ordinary semi-synthetic and do oil/filter about twice as often. It's the way I grew up.

    Fan belt, ours was about to fail at about 8K and 5 years, it was a pulley that had lost it's grease not the belt. The belt *looked* like new but who knows how long it would have lasted.

    I once had a belt go on a Golf at 11K miles. Didn't to any damage at all and quickly fixed under warranty. The cover had been rubbing on it.

    Better to be safe than sorry.
     
  14. hymerhobo

    hymerhobo Read Only Funster

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    >>i reckon a 'boxed' cam belt will have a much greater lifespan than a belt in regular use. when in use it will be subjected to tension changes, temperature changes(often extreme) and abrasion/wear. fitted to an engine that isn't going to be run for maybe a couple of years in storage isn't any different than being in its box on a warehouse shelf.....no significant temperature or tension changes and definitely no wear.<<

    You're not alone in that belief. I contacted someone in the auto parts trade recently, and got this reply ...

    >> I have been in the parts trade nearly 30 years and any
    belts that shows signs of deterioration are
    disposed of. Normally under dry conditions they
    will be fine for up to 25 years.<<

    Looks like the clock only _really_ starts ticking when the belt's installed.

    -Steve W
     
  15. Bulletguy

    Bulletguy Read Only Funster

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    Yes quite simple really.
    As your query relates to a new vehicle and not a used one then it will be covered under warranty.
     
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