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Thread: Engine knocking noise?

  1. #1
    Join Date
    Sep 2015
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    Worcester, MA
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    Question Engine knocking noise?

    Hi everyone,

    Fired up the 84 atc 200s and it sounds like a bit of a knock? Maybe i'm just listening too hard and thats how it is supposed to sound?

    Probably the 5th time I've fired it since I got it last summer

    Anyway I posted a video please have a listen =)

    https://youtu.be/wLLhqVeL82k

    Thanks

  2. #2
    Join Date
    Jun 2010
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    Buffalo, NY
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    Here's a you tube link to a trick Josh Ball just showed me today. Give it a try and see if it helps.

    https://m.youtube.com/watch?v=GpoHh9EMhaU
    Looking for a Bassani silencer for a 2nd gen tecate, the style with the movable mount. 1st gen will work

  3. #3
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    Quote Originally Posted by 86T3 View Post
    Here's a you tube link to a trick Josh Ball just showed me today. Give it a try and see if it helps.

    https://m.youtube.com/watch?v=GpoHh9EMhaU
    Now my question is... Where can I get one if those screws!?

  4. #4
    TwiZ's Avatar
    TwiZ is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Ive used this little trick for years. I keep the screw with my feeler gauge, 14mm wrench,bent 10mm wrench,and stubby screwdriver. I call it my valve adjust kit. Got the idle up there pretty good dont ya?? LoL Id adjust the chain like in vid(the adjuster can stick sometimes,just work it up n down a lil) just dont get it too tight. Next id put the engine at tdc on comp stroke and adjust valves .03 thosanthants if im not mistaken. I got my bolt at local hardware store 3mm x.5mm thread,but fastenall should have em

    1984 Honda 200X
    1984 Honda 200S Bonecrusher
    1975 Jeep CJ5

  5. #5
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    Sep 2015
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    How long does he screw need to be? I'm having difficulty finding one that is more than 2 inches.

    Also is it an M3.5 screw? Or a M3 .5pitch screw? Are they both the same?

  6. #6
    TwiZ's Avatar
    TwiZ is offline At The Back Of The Pack Arm chair racerFirst time rider
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    M3 .5 pitch. 2" shoild be ok

    1984 Honda 200X
    1984 Honda 200S Bonecrusher
    1975 Jeep CJ5

  7. #7
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    Quote Originally Posted by TwiZ View Post
    M3 .5 pitch. 2" shoild be ok
    Meh, I'm still having trouble finding a long screw! Found one so far

    Are you sure 60mm length will be sufficient?
    Last edited by bmark0610; 10-18-2016 at 09:52 AM.

  8. #8
    Join Date
    Mar 2007
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    Texas
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    what are you trying to do? if adjusting the chain then remove the 10mm bolt in the adjuster nut. loosen the adjuster nut while the engine is running. take an "awe" or some other type of thin metal device that you can fit through the hole and push down a few times gently to get the tensioner to loosen up. it should auto re-set then tighten nut back down and reinstall bolt. done. if it still has issues, you may have a bad bearing or bad rod pin.
    ________________
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  9. #9
    TwiZ's Avatar
    TwiZ is offline At The Back Of The Pack Arm chair racerFirst time rider
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    Quote Originally Posted by bmark0610 View Post
    Meh, I'm still having trouble finding a long screw! Found one so far

    Are you sure 60mm length will be sufficient?
    Yea it should work...just listen to what that ole boy in the video says,he has a video on adjusting valves too.

    1984 Honda 200X
    1984 Honda 200S Bonecrusher
    1975 Jeep CJ5

  10. #10
    Join Date
    Jul 2014
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    Im an OSR at Fastenal and have bought myself one of those screws haha Fastenal part number 11507869 is what you want brotha.

  11. #11
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    Quote Originally Posted by Dirty200 View Post
    Im an OSR at Fastenal and have bought myself one of those screws haha Fastenal part number 11507869 is what you want brotha.
    I actually ordered a couple yesterday from boltdepot.com. The shipping charges were lower and it looks like it's already out for delivery today!

    Lets just hope I am able to pull this off and the timing chain isn't maxed out!!!

  12. #12
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    Sep 2015
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    Worcester, MA
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    I was able to tighten the chain a bit (I think) but there is a knocking noise now it seems....

    Please have a listen to my video and tell me what ya think. The noise seems to get even louder after I rev it up...

    https://youtu.be/w76fI2iphqc

    Oh ya, I also lowered the idle a bit.

  13. #13
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    Quote Originally Posted by bmark0610 View Post
    I was able to tighten the chain a bit (I think) but there is a knocking noise now it seems....

    Please have a listen to my video and tell me what ya think. The noise seems to get even louder after I rev it up...

    https://youtu.be/w76fI2iphqc

    Oh ya, I also lowered the idle a bit.

    Yeah, wayyyy to much noise and your idle is way to high.
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  14. #14
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    Sep 2015
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    Any ideas on what it is?

  15. #15
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    Mar 2010
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    Slidell, LA
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    Hard to say, but I am leaning towards either the small or big end of crank. That's a loud thud. It wouldn't be so pronounced if it were valves or timing chain. But I've been wrong many times before.

    Have you adjusted the valves yet?
    Feedback for yaegerb: Click Here

    Need something blasted or polished or both? Send me a PM

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