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Advice/help required. 09 Renault Laguna

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Comments

  • #32
    martyc5674
    Registered Users Posts: 2,520 ✭✭✭martyc5674


    rex-x wrote: »
    The problem with that is if the timing is off then the valves may be open at tdc skewing the test results. Timing should always be reset first and then leakdown/ compression after

    Surely you’d only ever get a false negative though in that situation, which would lead to more investigation - not a false positive which would tell you to plough on.
    Marty.


  • #33
    rex-x
    Registered Users Posts: 1,893 ✭✭✭rex-x


    martyc5674 wrote: »
    Surely you’d only ever get a false negative though in that situation, which would lead to more investigation - not a false positive which would tell you to plough on.
    Marty.

    Yes but the next step is head off, who pays for that if all that was wrong is incorrect timing?


  • #34
    martyc5674
    Registered Users Posts: 2,520 ✭✭✭martyc5674


    rex-x wrote: »
    Yes but the next step is head off, who pays for that if all that was wrong is incorrect timing?

    That would be jumping the gun surely... who’d take the head off an engine without checking the timing hadn’t skipped a tooth or 2.

    Edit - I see you’d basically said the same. But yeah... get the timing in the right place using the old belt for now if it’s ok... before doing the leakdown test.


  • #35
    Gravelly
    Registered Users Posts: 4,119 ✭✭✭Gravelly


    rex-x wrote: »
    The problem with that is if the timing is off then the valves may be open at tdc skewing the test results. Timing should always be reset first and then leakdown/ compression after

    Thought that went without saying, yes.


  • #36
    LP64
    Registered Users Posts: 69 ✭✭LP64


    Sorry about the late update. Got swamped with other problems so i havent talked to the garage yet. i talked to other garages in the area. 4 different mechanics to be exact and they all told me. if the car wasnt running well, they would have seen it before changing the timing belt. if they changed the timing belt the car was ok. if the car as problems now it's more likely they messed up the timing belt. i've been advised to go there and tell them i'm not accepting to take the car back and pay until they fix it. so wish me luck


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  • #37
    Lefty Bicek
    Registered Users Posts: 1,625 ✭✭✭Lefty Bicek


    Good luck, and bonne chance !


  • #38
    w211
    Closed Accounts Posts: 416 ✭✭w211


    It looks like your workshop screwed you. Like I understand the car did not stop after the alternator belt trouble. They could read the wrong timing marks. Not every single marking are for timing belt/chain. 1 tip for you too. If you order the timing belt/chain replacement, then please ask to replace the tensioner and/or idler pulley too. Yes it cost money but you do not need to worry about these bearings.


  • #39
    PukkaStukka
    Registered Users Posts: 2,154 ✭✭✭PukkaStukka


    I wonder did they mis-time the engibe swapping the belt. If they bent valves, it wouldn't run at all. There's no keyway on the crank so it's supposed to be locking tools to do the belt on that engine. If it was retimed, it might be ok....


  • #40
    w211
    Closed Accounts Posts: 416 ✭✭w211


    PukkaStukka wrote: »
    I wonder did they mis-time the engibe swapping the belt. If they bent valves, it wouldn't run at all. There's no keyway on the crank so it's supposed to be locking tools to do the belt on that engine. If it was retimed, it might be ok....


    Not sure there are interference or not. Some engine timing belt/chain can break without any damage for valves, some not.



    I think it is time to reveal the workshop/mechanic name. If they do not fix their mistakes, everyone should avoid them and put out from the business. We living on the internet age and we share and communicate the information. If I screw something accidentally (expect the old fragile plastic parts) then I repair my mistakes. The information moves so fast to social media, it is incredible (or nightmare). No fix - no money, you brake it - you fix it should be the standard on that industry.


  • #41
    PukkaStukka
    Registered Users Posts: 2,154 ✭✭✭PukkaStukka


    w211 wrote: »
    Not sure there are interference or not. Some engine timing belt/chain can break without any damage for valves, some not.



    I think it is time to reveal the workshop/mechanic name. If they do not fix their mistakes, everyone should avoid them and put out from the business. We living on the internet age and we share and communicate the information. If I screw something accidentally (expect the old fragile plastic parts) then I repair my mistakes. The information moves so fast to social media, it is incredible (or nightmare). No fix - no money, you brake it - you fix it should be the standard on that industry.

    That Renault 1.5 diesel engine is most definitely an interference engine and an aux belt becoming entangled around the crank is a known method of distruction with them. That has already been said previously in this thread.

    My point is that it is possible to mis-time some engines when doing a timing belt and end up with poor / rough running as a result,but critically, without suffering internal damage. I have seen this happen. The cam and crank can be out fractionally resulting in this. The engine needs to be rechecked by someone familiar with it. If I'm right, it could result in a straightforward fix.

    As for naming and shaming, the court of popular opinion sometimes operates without hard fact. Nobody here for certain knows whether the mechanic / garage have a case to answer or not. We don't know if the car was damaged by the belt, or if the garage did indeed screw up. I'm sure the mods will step in if names are mentioned.....


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  • #42
    PukkaStukka
    Registered Users Posts: 2,154 ✭✭✭PukkaStukka


    Here's a video of a belt swap on that engine fitted to a Qashqai

    https://youtu.be/H8941kD0nuo


  • #43
    w211
    Closed Accounts Posts: 416 ✭✭w211


    Here yes modes can stop to telling the truth about bad workshop, but on facebook it is 100% allowed. They really likes there the drama, unfortunately. I do not want to see the blood, just the clear result.


  • #44
    rex-x
    Registered Users Posts: 1,893 ✭✭✭rex-x


    PukkaStukka wrote: »
    I wonder did they mis-time the engibe swapping the belt. If they bent valves, it wouldn't run at all. There's no keyway on the crank so it's supposed to be locking tools to do the belt on that engine. If it was retimed, it might be ok....

    The engine will run with bent valves no problem unless its well and truly mangled inside


  • #45
    gctest50
    Registered Users Posts: 9,605 ✭✭✭gctest50


    The bottom timing belt wheel may not be "keyed" to the crank on your car

    If they undertightened it or overtightened it, it will slip


    Y8nliil.jpg


    IquM8fW.jpg


    pAPxbfk.jpg

    .


  • #46
    corks finest
    Registered Users Posts: 8,625 ✭✭✭corks finest


    LP64 wrote: »
    Sorry about the late update. Got swamped with other problems so i havent talked to the garage yet. i talked to other garages in the area. 4 different mechanics to be exact and they all told me. if the car wasnt running well, they would have seen it before changing the timing belt. if they changed the timing belt the car was ok. if the car as problems now it's more likely they messed up the timing belt. i've been advised to go there and tell them i'm not accepting to take the car back and pay until they fix it. so wish me luck
    Good luck boy


  • #47
    corks finest
    Registered Users Posts: 8,625 ✭✭✭corks finest


    gctest50 wrote: »
    The bottom timing belt wheel may not be "keyed" to the crank on your car

    If they undertightened it or overtightened it, it will slip


    Y8nliil.jpg


    IquM8fW.jpg


    pAPxbfk.jpg

    .
    Minefield


  • #48
    chicorytip
    Registered Users Posts: 4,081 ✭✭✭chicorytip


    How was he able to drive the thing at all with a broken belt? There would be a complete loss of electrical power so the car would just stop dead in the middle of the road. He is obviously mistaken with regard to what the actual problem is here.


  • #49
    Gravelly
    Registered Users Posts: 4,119 ✭✭✭Gravelly


    chicorytip wrote: »
    How was he able to drive the thing at all with a broken belt? There would be a complete loss of electrical power so the car would just stop dead in the middle of the road.

    Not until the battery died, which could be quite a while.


  • #50
    Lefty Bicek
    Registered Users Posts: 1,625 ✭✭✭Lefty Bicek


    chicorytip wrote: »
    How was he able to drive the thing at all with a broken belt? There would be a complete loss of electrical power so the car would just stop dead in the middle of the road. He is obviously mistaken with regard to what the actual problem is here.

    :o


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