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Thread: Engine sound query

  1. #1
    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Engine sound query

    Hey MR.

    Just a quick question. On start up when the car has been parked over night or parked up for 6+ hours, there is a rather noticeable metallic rattle from what sounds like the top end of the engine. It's only persists for a second or two then it dampens down and you can't hear it at all. Anyone have any idea what it could be?


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  2. #2
    4,000 rpm - entering the fun zone RustRat's Avatar
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    Probably hydraulic lifters, aka "lifter tick". happens to most 1.6, I guess.


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  3. #3
    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Quote Originally Posted by RustRat View Post
    Probably hydraulic lifters, aka "lifter tick". happens to most 1.6, I guess.


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    Ah, ok. Is there anyway to fix it or stop it? I don't want the engine to go bang!


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    2,000 rpm - light wheelspin, no bog here! benpopham's Avatar
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    They all do it, a change of oil usually helps.

    Nothing will go bang.

    If they get really bad they can be rebuilt, it is just a case of removing the cams and pulling the lifters out. It is quite an enjoyable job if you like that sort of thing.

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    My wife's car uses a light on the dash to tell when the oil needs to be changed. My car ticks when it wants new oil

  7. #6
    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Quote Originally Posted by Martin View Post
    My wife's car uses a light on the dash to tell when the oil needs to be changed. My car ticks when it wants new oil
    It's had an oil change, not so long ago. What oil do you use, mile has 116k miles on it.


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    5w40 Rotella T6




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  10. #8
    5,000 rpm - there be torque here! MiataQuest's Avatar
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    Question...
    Do any of the oil filters offered for the Miata have an anti-drain back feature?
    I know when I use regular oil filters (even Bosch) on my two Audi 5000's they will clatter at start-up.
    If I use a Mann filter with the anti-drain back feature I have no clattering at start-up. (Unless it sits for many days)
    =====================
    My Audi loves Mobil-1 15W-50 in the summer.
    Better to have some clattering at start-up with thicker oils than no clattering with thinner oils. With the thicker oils just take it easy on the engine until it reaches operating temperature. Then you can run the heck out of it.

    Thinner oils are great for start-up and short trips, but not good for a high revving hot engine. Thin oils get air whipped to create foaming at high RPMs which causes poor lubrication. You can identify this condition when you have clattering hydraulic lifters after a hard run.
    Last edited by MiataQuest; 08-10-2016 at 10:09 AM.

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  12. #9
    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Quote Originally Posted by Martin View Post
    5w40 Rotella T6



    I might put 5w/40 in mine next time, see how that goes thanks


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    5,000 rpm - there be torque here! MiataQuest's Avatar
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    Quote Originally Posted by Aki yuno View Post
    I might put 5w/40 in mine next time, see how that goes thanks


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    That sounds like a plan. What oil weight were you using before?
    I need to do some research on oil filters. I will let you know if I find out anything about anti-drain back features.
    The OEM filter is probably good, but wow it is so small!

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    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Quote Originally Posted by MiataQuest View Post
    That sounds like a plan. What oil weight were you using before?
    I need to do some research on oil filters. I will let you know if I find out anything about anti-drain back features.
    The OEM filter is probably good, but wow it is so small!
    I'm using petronas 5w/30 because I thought a thinner oil would suit the engine. 5w/40 I think will be a better choice


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    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Quote Originally Posted by benpopham View Post
    They all do it, a change of oil usually helps.

    Nothing will go bang.

    If they get really bad they can be rebuilt, it is just a case of removing the cams and pulling the lifters out. It is quite an enjoyable job if you like that sort of thing.
    Have you done the job yourself? If so, how long does it take and do I need any specialist tools?


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    Ninja Messiah kung fu jesus's Avatar
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    Enjoy my guttural upper Midwestern accent while I describe an HLA refurb:

    Part 1


    Part 2


    There are other tutorial videos and write ups out there. It's easiest to do this when doing a timing belt service because you have to remove the cams, cam gears, etc, anyways. The HLA refurb will take about 2 hours working at an even pace. This is not including disassembling the cams, or reinstallation.

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  19. #14
    1,000 rpm - releasing the clutch Aki yuno's Avatar
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    Quote Originally Posted by kung fu jesus View Post
    Enjoy my guttural upper Midwestern accent while I describe an HLA refurb:

    Part 1


    Part 2


    There are other tutorial videos and write ups out there. It's easiest to do this when doing a timing belt service because you have to remove the cams, cam gears, etc, anyways. The HLA refurb will take about 2 hours working at an even pace. This is not including disassembling the cams, or reinstallation.
    Was anything specialised required? Thanks for the reply and the mad detail you went to to help


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  20. #15
    6,000 rpm - mere mortals would shift NCGreasemonkey's Avatar
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    And KFJ talked me into switching to the Rotella, also. I had a start-up lifter tick and some oil burning issues. Almost 3000 miles since using T-5 10W-30 for the first time and she smokes less and most of the ticking is gone. Only happens when the engine stops on a certain valve under pressure from the cam lobe.

    My thanks to KFJ and GM2K for smacking me on the nose with a paper. I just had not tried the Rotella. And I knew about it. But came over from NASIOC where most running it were ubber-boosted STIs and Rexes. You learn something... Thanks!
    ... Rick

    Quote Originally Posted by Hammerhead View Post
    ...and don't be like an NCGreasemonkey.
    For the thread on Noir click below
    http://mazdaroadster.net/showthread....e-light-Slowly

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