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Thread: URGENT: 300Tdi Broken Drive Belt!

  1. #1
    Treads Guest

    Exclamation URGENT: 300Tdi Broken Drive Belt!

    I just had my main drive belt let go on the way back from town. I suddenly felt the steering go tight, tacho drop to 0 and the battery light came on. It was still running fine so I kept driving about 1km home through only two turns and switched it off in the carport. Checked and the serpentine belt has snapped.

    Question 1: Would it have done any damage driving home?
    Question 2: Should I perform any minor maintenance before I put a new belt back on? (ie water pump, idler pulley, etc)
    Question 3: Since the LR guy who serviced the car before I purchased it can't be bothered ringing me back to confirm when the timing belt was last done, should I change it now?

    Thanks

  2. #2
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    Change the belt strat it up, if it runs turn it off ,and go have a beer. Oh yeh check your belt regularly and change it before it breaks!


    ( Did the temperature gauge go to the red? (thats an important component of your quandry))

  3. #3
    Treads Guest
    Thanks for the reassurance!

    I only checked it last week after returning from a 4wding weekend

    She was cold and had only driven about 2km when it happened. otherwise I would've switched off and pulled over straight away

  4. #4
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    After 2 Ks you should be fine. 20 or 200k's, and a hot motor, it would be of more concern.



    Consult a manual for the correct path for the serpentine belt, you should be able to find it here on the forum if you search for it.

  5. #5
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    No damage from driving without a belt (other than sucking a bit of juice from your battery). There is a possibility that the belt can damage things when it breaks, so check radiator, intercooler, etc, etc for visible damage.

  6. #6
    Treads Guest
    Quote Originally Posted by Andrew View Post
    Consult a manual for the correct path for the serpentine belt, you should be able to find it here on the forum if you search for it.
    Thanks mate, got rave open on the screen right now Going to pick up a new belt from the local mazda (& ex-LR) dealer in about an hour. $61 in stock, that seems a decent price.

  7. #7
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    Quote Originally Posted by Treads View Post
    I)
    Question 3: Since the LR guy who serviced the car before I purchased it can't be bothered ringing me back to confirm when the timing belt was last done, should I change it now?

    Thanks
    cheap insurance to have it changed if you do not have the history of the car, got mine done in jan for approx $700

    my rig has been changed every 80 000km

  8. #8
    Treads Guest
    Quote Originally Posted by weeds View Post
    cheap insurance to have it changed if you do not have the history of the car, got mine done in jan for approx $700

    my rig has been changed every 80 000km
    I was guaranteed that it had been done recently, but the mech doesn't seem to like returning calls to confirm
    I was going to do it myself. It's probably fiddly, but I've got the rave CD and plenty of time

    That way it should only cost me +/-$250. I'm also doing the idler pulley bearing while the belt's off, $6 at repco (in stock too) More cheap insurance....

  9. #9
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    Treads
    I would check you power steering pump and make sure the pulley/shaft is in its spot. Belt failures (on good belts) are usually caused by the PAS shaft coming forward causing misalignment due to the bearing failing or shaft breaking.....just supplied 2 pumps today due to this fault.

    Just take belt off ( already done for you) and move the pulley in and out, if it moves in and out you need a new pump.

    Julien

  10. #10
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    Quote Originally Posted by Treads View Post
    I was guaranteed that it had been done recently, but the mech doesn't seem to like returning calls to confirm
    I was going to do it myself. It's probably fiddly, but I've got the rave CD and plenty of time

    That way it should only cost me +/-$250. I'm also doing the idler pulley bearing while the belt's off, $6 at repco (in stock too) More cheap insurance....
    If you can't confirm when timing belt has been done and you plan to do it yourself then go for it. Takes about 6 - 8 hours first go depending on how handy you are. It does help having a monkey and make sure you use the right torque for the belt (11nm).

    Replacing the bearings on the idlers and tensioner is pretty easy. Remember to get 6203 bearings that are double lipped seals. Provides better dust and water protection. Dearer than $6 though.

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