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Problem with newly bought car

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  • Retrogamer
    Retrogamer Posts: 4,218 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    GAZ237 wrote: »
    I don't mean to be rude, but I'm going to be anyway.

    No worries Gaz, i've read a lot of your posts and it seems to be the norm so i expect a rude reply
    GAZ237 wrote: »
    Do you actually read the posts before you comment?

    Yes, i do.
    GAZ237 wrote: »
    Or are you advising the Op to change the oil and filter, even though he had it done today?

    I'm really sorry for not noticing that part.
    11 hour shift at the office today and my neighbours house caught fire last night so i'm a little tired from lack of sleep from fire engines and building repair crews working until 2am.

    Although i read it i didn't absorb the information correctly. I thought it said the garage suggested this as a course of action, rather than did it

    I'll endeavour to be more focused on future posts, but no promises ;)
    All your base are belong to us.
  • Jamie_Carter
    Jamie_Carter Posts: 5,282 Forumite
    DSpence wrote: »
    Sooooo...

    Just got the car back from Vauxhall. They did a 'basic' check (as much as they could without stripping the engine out to determine exactly what's going on, which would have cost several hundred...) and determined that there is actually oil in all 4 plugs, and the engine is evidently burning oil. There was apparently smoke coming out of the exhaust, although I'm pretty sure this is a recent development (since last week).

    The guys at Vauxhall have seen this problem before apparently (won't be a surprise to many of you, reading through this thread) and suggested using a much thicker oil (15W 40, as opposed to the 5W 30 that was in it before) to see if this helps. So they drained the oil out, replaced the oil filter and replaced all of the spark plugs. Would be surprised if it fixed the problem, but should prolong things a bit apparently.

    Obviously on top of this, I'll be monitoring the oil / spark plugs.

    Next time I'm just forking out for a much newer car.

    Well it doesn't sound like a broken ring then, which is good.

    The most likely culprit would be the valve stem oil seals. But it's really down to how much you want to spend on it.

    It's a bit late now, but next time you do an oil change it might be worth treating the engine with Slik 50. This Teflon coats your engine, and can help.
  • Strider590
    Strider590 Posts: 11,874 Forumite
    edited 12 July 2013 at 10:12AM
    DSpence wrote: »
    Sooooo...

    Just got the car back from Vauxhall. They did a 'basic' check (as much as they could without stripping the engine out to determine exactly what's going on, which would have cost several hundred...) and determined that there is actually oil in all 4 plugs, and the engine is evidently burning oil. There was apparently smoke coming out of the exhaust, although I'm pretty sure this is a recent development (since last week).

    The guys at Vauxhall have seen this problem before apparently (won't be a surprise to many of you, reading through this thread) and suggested using a much thicker oil (15W 40, as opposed to the 5W 30 that was in it before) to see if this helps. So they drained the oil out, replaced the oil filter and replaced all of the spark plugs. Would be surprised if it fixed the problem, but should prolong things a bit apparently.

    Obviously on top of this, I'll be monitoring the oil / spark plugs.

    Next time I'm just forking out for a much newer car.

    See how it does on the new oil....

    When a car isn't serviced properly (forget FSH, it's worthless if the garage only bothered to stamp the book), the oil becomes more likely to vaporise at high temps, this is then sucked into and burnt in the engine via the crankcase breather hose (to meet EU regs), it gets everywhere, it coats the inlet manifold and fuel injectors with crud, in extreme cases and with poor quality oil, this can cause similar issues to what you've seen.

    Removing the breather hose from the inlet manifold and fitting a small aftermarket filter (or an oil catch tank), will stop it being sucked up into the engine (and give you a 5% power increase), but it'd fail it's next MOT on emissions because they check for the oil residue in the exhaust gases (apparently).

    Additionally, checking the breather hose isn't blocked would also be a good idea, because a blocked breather hose will cause pressure to build up, which can force oil down through... Well.... Everywhere.

    Unfortunately a newer car might not be the solution, new or old too many idiots own cars these days, from nutters thrashing the !!!! out of them, to lower mileage drivers not getting them serviced, it's a real minefield.
    “I may not agree with you, but I will defend to the death your right to make an a** of yourself.”

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  • motorguy
    motorguy Posts: 22,611 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Well it doesn't sound like a broken ring then, which is good.

    The most likely culprit would be the valve stem oil seals. But it's really down to how much you want to spend on it.

    It's a bit late now, but next time you do an oil change it might be worth treating the engine with Slik 50. This Teflon coats your engine, and can help.

    Theres no way on this planet that the valve stem oil seals are allowing that much oil past them to oil up the plugs that much and burn oil to that extent all the time. Its almost a physical impossibility.

    It all points to the oil rings - as i said before. Wasting money on the valve stem oil seals will NOT resolve this.

    Slick 50 is great for ensuring parts that have no oil for a time are protected. Thats the reverse of this problem. The car is getting oil in places it doesnt need it, thus would be fairly pointless.
  • motorguy
    motorguy Posts: 22,611 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
  • motorguy
    motorguy Posts: 22,611 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Well it doesn't sound like a broken ring then, which is good.

    The most likely culprit would be the valve stem oil seals. But it's really down to how much you want to spend on it.

    It's a bit late now, but next time you do an oil change it might be worth treating the engine with Slik 50. This Teflon coats your engine, and can help.

    Do you not think its a bit funny that the two qualified sets of mechanics - the O/Ps mechanic, and now a Vauxhall main dealer - who have seen and examined the car arent recommending a set of valve stem oil seals, bearing in mind the seals are cheap and Vauxhall list it at just a 4 hour job?

    But you know better having (a) never seen the car, (b) not aware of the issues and (c) never spoke to a mechanic who has seen this problem?
  • Jamie_Carter
    Jamie_Carter Posts: 5,282 Forumite
    motorguy wrote: »
    Theres no way on this planet that the valve stem oil seals are allowing that much oil past them to oil up the plugs that much and burn oil to that extent all the time. Its almost a physical impossibility.

    It all points to the oil rings - as i said before. Wasting money on the valve stem oil seals will NOT resolve this.

    Slick 50 is great for ensuring parts that have no oil for a time are protected. Thats the reverse of this problem. The car is getting oil in places it doesnt need it, thus would be fairly pointless.

    Each piston will have three or four piston rings. On an engine that has only done 77k miles, all of the rings would be very unlikely to have worn enough to allow that much oil past, otherwise there would be severe compression problems.

    If it was just one cylinder, then a broken oil ring would be a possibility, but not on all four. This leaves either valve stem oil seals, or a breather problem.

    The carbon build up from an engine that burns oil would be gradual. So this would only need a small amount of leakage.

    It doesn't take much oil to cause blue smoke from the exhaust. For the amount of oil you are suggesting, the OP would have noticed the clouds of smoke on acceleration.
  • Jamie_Carter
    Jamie_Carter Posts: 5,282 Forumite
    motorguy wrote: »
    Do you not think its a bit funny that the two qualified sets of mechanics - the O/Ps mechanic, and now a Vauxhall main dealer - who have seen and examined the car arent recommending a set of valve stem oil seals, bearing in mind the seals are cheap and Vauxhall list it at just a 4 hour job?

    But you know better having (a) never seen the car, (b) not aware of the issues and (c) never spoke to a mechanic who has seen this problem?

    The Vauxhall dealer only did a basic check, and didn't actually diagnose the problem.
    DSpence wrote: »
    Sooooo...

    Just got the car back from Vauxhall. They did a 'basic' check (as much as they could without stripping the engine out to determine exactly what's going on, which would have cost several hundred...) and determined that there is actually oil in all 4 plugs, and the engine is evidently burning oil. There was apparently smoke coming out of the exhaust, although I'm pretty sure this is a recent development (since last week).
    DSpence wrote: »
    They didn't suggest anything with the engine - only that they would have to take the whole thing apart to properly get to the bottom of it.
  • The Vauxhall dealer only did a basic check, and didn't actually diagnose the problem.

    And what checks have you done?

    None, but for some reason you know best.
  • Jamie_Carter
    Jamie_Carter Posts: 5,282 Forumite
    edited 12 July 2013 at 2:13PM
    And what checks have you done?

    None, but for some reason you know best.

    I haven't, but neither has motorguy, who is saying that it is the oil rings. When the most likely cause is either the valve stem oil seals, or breather problems.

    I'm not saying I know best. But it's best to investigate the more obvious, cheaper solutions before writing off the engine.
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