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Thread: Can my valves really be worn after 40k?

  
  1. #1
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    Question Can my valves really be worn after 40k?

    Hi All

    I have an Astra G 1.8 SRi and, although 9 years old now, it's only done 40,000 miles.

    Over the last month or so I've noticed a ticking which has gradually got louder. It goes up and down with the revs, which leads me to think it might be the tappets. I've chucked a tub of Wynns Hydraulic Valve Lifter Treatment in but it hasn't quietened down at all (though its only been in a couple of days so maybe I'm jumping the gun).

    Are my valves really likely to need replacing at such a low mileage?

    My other thought is whether replacing the timing belt could have any effect - I have the car booked in for a replacement one next week (at 9 years old I thought I'd better not push my luck any further!!), but don't really understand how the engine works well enough to know if this could be a cause/solution.

    So, to cut it short, what I'd like to know is:

    1.) Are my valves likely to be worn at 40k?
    2.) Is it possible that a new timing belt is going to stop the noise, or is that a mechanical impossibility?

    The garage suggested that replacing the valves at the same time as the belt would be more cost effective if they need doing, but I don't want to do them if simply replacing the belt will sort the problem, or if there might be another cause.

    Any advice would be massively appreciated.

    Thanks
    Mark

  2. #2
    fdrightup
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    the valves in my cylinder head have done 82,600 miles and going to reuse them again, valve guides wear before the valve stem does also the ticking can/could be the hydrolic lifters, changing the cam belt won't stop the ticking,
    lack of oil changes could/can clog up the hydrolic lifters had this problem on mine

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    nry's Avatar
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    Low mileage means nothing though - if the engine has done 40,000 miles of short trips then it may well be more worn than an engine that's done 140,000 miles of long trips.

    Shorter journeys never have the engine fully warm for long, so it gets lots of cold running, and this is what is bad for engines.

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    Thanks guys.

    The car does do mainly short trips, so maybe that's the problem.

    Any way of figuring out whether its the valves or the lifters causing the noise?

    It's been serviced regulalry throughout it's life, so a lack of oil changes probably isn't the problem.

    Looks like I'm going to have to see what the garage make of the noise and be guided by them i think.

    This could get expensive...

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    Try some injector flush/ cleaner... might not be the tappets at all

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    Thanks Rick.

    Given that I've just added Wynns Hydraulic Valve Lifter Treatment already, am I in any danger of having too many additives in there if I add an injector cleaner now?

    Thanks again
    Mark

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    Not likely, depends i thought the tappets cleaner was to go in your oil, and the injector cleaner in your fuel tank, if so not likely to cause a problem.
    That astras looking sxi.........

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    I've got an annoying tapping sound... it's a different sound to when my tappets tap lol... less metally...? lol. Either way could dirty injectors make a ticking sound and would the injector cleaner help??
    124.6 Bhp and 133.5 lb/ft from an x18xe1 (Now Sold)

    Now Drive a Corsa VXR

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    Well, I've tried the lifter treatment and the injector cleaner now and no improvement. It's at the garage in Tues so we'll see what they have to say. Cheers foe the help guys. Mark

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    danny's sxi's Avatar
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    are you sure its not a fuel pump relay clicking?

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