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Thread: Slight engine tapping when cold...

  1. #1
    DX User
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    Aug 2005
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    Ebony Black '87 Acura Legend L Coupe 5-Speed. Regency Red '86 Accord LX Sedan 5-Speed. Montreal Blue '87 Accord LXi Sedan Automatic.
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    Slight engine tapping when cold...

    Guys,

    The new Accord sat overnight in the extreme cold, and when I started it up today it had a very slight tapping. Only happened when reving or holding engine speed, not when decelerating. The noise went away once it ran for a few minutes.

    I know these don't have lifters like the G1 Legend does, so should I be worried? Could the valves just be off?



  2. #2

    carotman's Avatar
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    Jul 2000
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    89 Accord LX/B20A | 87 Accord Hatch "S" Stock | 94 Civic Hatch CX
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    Re: Slight engine tapping when cold...

    Tapping under load might come from the rod bearings.

    What oil weight do you use?

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  3. #3
    DX User
    Join Date
    Aug 2005
    Vehicle
    Ebony Black '87 Acura Legend L Coupe 5-Speed. Regency Red '86 Accord LX Sedan 5-Speed. Montreal Blue '87 Accord LXi Sedan Automatic.
    Location
    Denver, CO
    Posts
    36

    Re: Slight engine tapping when cold...

    I'm not sure what oil weight it is, I just bought the car two days ago.
    I do know that the tapping goes away once the engine is warmed up.

  4. #4


    Join Date
    Nov 2004
    Vehicle
    88 LXi
    Location
    Knoxville TN
    Posts
    5,205

    Re: Slight engine tapping when cold...

    10w40 is about all these motors can stand in cold (below 32) weather. Make sure to let the car run a few minutes before it sees any load or rpm. I would not rev it past 3 grand until it is fully warmed up.

    You might also look at replacing your oil pump this might help the low oil pressure at idle.


    wp
    1988 Lxi owner since August 1995
    336k miles running strong!
    Now running E85.

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