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  • 2 Post By jerry clayton
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Thread: Help identifying engine whine.
          
   
   

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  1. #1
    29fordcoupe is offline CHR Member Visit my Photo Gallery
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    Help identifying engine whine.

     



    https://www.youtube.com/watch?v=pd83HhRwGuA

    This video shows the engine whine I'm trying to diagnose. The noise is much louder in person than you can hear in the video. The longer you listen to the video, the more you can begin hearing the whining sound.

    I tried a (very short) test, removing the accessory drive belt and the Whine continues even when alternator and water pump are not spinning. There are no other accessories.

    I'm going to probe it with a stethoscope today and see if I can narrow down the location. It was suggested on another forum to unbolt the torque converter and push it back so I can isolate the noise to engine or trans, so I'm going to try that today.

    Any other suggestions are greatly appreciated.
    Thanks!

  2. #2
    rspears's Avatar
    rspears is offline CHR Member/Contributor Visit my Photo Gallery
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    First, welcome to CHR.
    Your noise sounds like the transmission pump or torque converter to me. If you have a good independent tranny shop near by they will likely be able to tell you quickly, and maybe just from the video you posted. Just my thoughts, early and on the first cup of coffee.
    Roger
    Enjoy the little things in life, and you may look back one day and realize that they were really the BIG things.

  3. #3
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
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    do you have chain or gear drive timing gears for camshaft???sounds like a cheap gear drive and you are focused on front portion of engine-------
    NTFDAY and rspears like this.

  4. #4
    29fordcoupe is offline CHR Member Visit my Photo Gallery
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    To me, the sound seemed like it was coming from the front, but it is really hard to tell.
    I bought this car from someone else who bought the car, builder is unknown.
    Haven't had it very long.
    The only info I got from seller was that it was supposed to be a 350 crate engine.
    The engine has no casting number or stamped numbers, but it has 333882 heads on it.

  5. #5
    NTFDAY's Avatar
    NTFDAY is offline CHR Member Visit my Photo Gallery
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    Jerry hit it on the head. That sure sounds like a gear drive to me and if it were mine I'd tear it down and install a true double roller timing set.
    glennsexton and HOSS429 like this.
    Ken Thomas
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  6. #6
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    i`m with Jerry .. sounds to me like a gear drive .. some guys do that on purpose just for the noise .. it can sound like a blower if your engine is covered .. i wish you had blipped the throttle a time or two ..
    iv`e used up all my sick days at work .. can i call in dead ?

  7. #7
    29fordcoupe is offline CHR Member Visit my Photo Gallery
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    Engine is an older build.
    I did some stethoscope probing on it today, and the noise seems the very loudest at the bell housing.
    So maybe it is the transmission pump.
    I'm going to try disconnecting the torque converter and pushing it back as suggested, just didn't get to that today.

  8. #8
    29fordcoupe is offline CHR Member Visit my Photo Gallery
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    The alternator is where I originally assumed the whine was from. I already replaced the alternator.
    Then I started trying to diagnose it.

    I did a short test run with the accessory belt removed, so neither the alternator or water pump was spinning and it still had the whine.

    I was hoping it was just timing gears, but its starting to look like tranny pump.

  9. #9
    29fordcoupe is offline CHR Member Visit my Photo Gallery
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    tranny test

     



    I took off the cover and unbolted the torque converter from the engine, and pushed it back. Started the engine and the whine is still there, just as loud.

    Did some probing with the tranny disconnected and now the sound seems loudest at the timing gear cover. So for now I'm going to chalk it up to loud timing gears and just driver it till I either get used to it or it starts getting worse.

    I'm just a little too OCD for strange engine noises.
    34_40 likes this.

  10. #10
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    The left knob on the radio can always fix those noises.. 8-)
    29fordcoupe likes this.

  11. #11
    jerry clayton's Avatar
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    The only thing about an engine that is a steady sound ( not an intermitten click, knock, tap ) is a GEAR related sound that comes from improper contact angle or clearances of mesh lines---------it is a cam gear drive issue and either live with it or change to a chain set up-------In that car it would be a snap to replace it
    NTFDAY and 29fordcoupe like this.

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