Question about 2000 Daewoo Lanos

4 Answers

Last May I had the timing belt done by a professional repairer and now there is a problem with the cam box - it has broken up and lost the oil seal. This is a little heard of problem and the garage's theory is that either the cam jammed or there was a blockage in the oil galleries, causing overheating and a subsequent break-up of the cam box. The engine has not been stripped down. I don't accept the 'jammed cam' theory as the engine never faultered and we drove 2km home before we discovered the problem. Is it possible the fault could be related to the previous work done?

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  • andy_kyiet Feb 07, 2010

    The mileage is around 100,000 kilometers and there haev been no previous problems with the car. After the discovery of the damage to the cam box, the vehicle still had plenty of oil.

  • andy_kyiet Feb 07, 2010

    When the work was done, the Daewoo Timing Belt kit was use (KTBA009) - would this have included this particular oil seal? I'm wondering if the oil seal was renewed, or should have been?

  • andy_kyiet Feb 07, 2010

    Thanks for the quick response. This is a very unusual fault to have happened. In your view, what are the possible causes?

  • andy_kyiet Feb 08, 2010

    Thanks for the prognosis. Is it possible that the (subsequent) lack of lubrication could be connected with the work done on the timing belt in any way?

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It is very possible that there could have been a relation between the timing belt being serviced and what happened recently.When the engine is opened up to replace the timing belt and certain gasket contact areas are grinded down to achieve a smooth flat surface it's very possible that that oil galley holes weren't covered to protect from material getting in there.This could have caused the failure.Also, it's very possible that the timing belt tensioner had failed after the fact and the belt acheived enough slack to jump off the sprockets which in turn could cause the cam to slap against the pistons and damage the cam itself.This would actually more than likely damage the pistons too.I hope I could help.....rate me accordingly..

Posted on Feb 08, 2010

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The blocked oil galleries is the best scenario here, lack of oil would be the only thing that could cause this, there is no way changing a timing belt could result in a frozen camshaft, with 45 years of auto repair under my belt i reject that theory, lack of lubrication is the reason without a doubt.

Posted on Feb 08, 2010

  • yadayada
    yadayada Feb 08, 2010

    I have done 100's of timing belts and there is no way the lack of lubrication could have been connected to replacing the timing belt, if you looked at a book showing how everything works in this engine you would see that right away, if u want to blame something blame Daewoo, it is likely a manufactures defect, I have decades of experience to draw on here.

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No it has nothing to do with the previous job done.The timing belt replacement has got nothing to do with this broken seal unfortunately.Hope this helps.

Posted on Feb 07, 2010

  • heeman mohun Feb 07, 2010

    When you change a timing belt you do not change any oil seal nor do you need to touch that.It is just a matter of being unfortunate I am afraid.

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How many miles are on the vehicle? Most likely it is due to the fact it is a a Daewoo. There could be a lot of reasons for this. I would just invest in a much safer and reliable vehicle rather then repairing that one. Once I have more information I can assist you further if needed.
Thank you,
Lee

Posted on Feb 07, 2010

  • Lee A.
    Lee A. Feb 08, 2010

    Honestly it sounds like you are fishing very hard to blame a mechanic for past work done. If the work was done in may and it has taken this long for anything to occur then you really can't put any blame on the mechanic, not even counting the fact that these vehicles are known for their lack of reliability, safety, etc... I always suggest to research thoroughly and purchase a quality vehicle within your price range.
    Thanks again and good luck,
    Lee


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