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Thread: Knocking

  1. #1
    LXi User -$MOKIN-'s Avatar
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    Knocking

    OK so the other night i did a million donuts then went to the store the next day and had a bad knocking sound...
    So i am not sure if i blew a rod or if just jumped time.
    It idles fine and there isnt a rod coming threw the side of the block ....
    U cant really hear it knocking unless u give it gas and then it thumps pretty good...



    I need input and i can make a video if someone request it. HELP



  2. #2
    2.0Si User ShyBoyCA6's Avatar
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    Re: Knocking

    VID Please.

  3. #3
    LXi User RAZR's Avatar
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    Re: Knocking

    video Please

  4. #4
    LXi User -$MOKIN-'s Avatar
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  5. #5
    2.0Si User ShyBoyCA6's Avatar
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    Re: Knocking

    Broken rod or bearing? that sounds really bad might wanna get that fix asap before it gets worse.

    I wouldn't do any harsh stuff to these motors. i learned my lesson with mine.
    Last edited by ShyBoyCA6; 03-09-2011 at 02:02 PM.

  6. #6
    LXi User -$MOKIN-'s Avatar
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    Re: Knocking

    I donno it might of just slip time .

    I need a good tech to tell me what to do here to check it out .To see what it is

  7. #7
    2.0Si User ShyBoyCA6's Avatar
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    Re: Knocking

    check the timing belt if its missing any teeth. if you think it the timing then grab a timing light and start from there. if not that then you might have to turn to the rod.

  8. #8
    LXi User -$MOKIN-'s Avatar
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    Re: Knocking

    Anyone else have any input on it? I think a compression check. I took the oil stick out and it looked like it had shavings on it.

  9. #9

    car6289's Avatar
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    Re: Knocking

    Drain your oil in to a clean container. Strain the used oil through a paint filter, or better yet a paper coffee filter, and look for metal. What metal you find will lead you to what you have damaged inside the engine. Magnetic (ferrous) material will be from rotating components (crank or cam), the block or piston rings, non ferrous material will be from other sources, bearings, pistons.

    I always thought donuts (doughnuts) were for eating. Doh!
    Learn from the mistakes of others. You'll not live long enough to make them all yourself.

  10. #10


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    Re: Knocking

    Quote Originally Posted by -$MOKIN- View Post
    OK so the other night i did a million donuts then went to the store the next day and had a bad knocking sound...
    So i am not sure if i blew a rod or if just jumped time.
    It idles fine and there isnt a rod coming threw the side of the block ....
    U cant really hear it knocking unless u give it gas and then it thumps pretty good...



    I need input and i can make a video if someone request it. HELP

    its blowed up.

    Spinning around causes oil to slosh around in the oil pan and it prolly got oil starved.


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

    Oldblueaccord <<< MY YOUTUBE PAGE!

  11. #11

    AccordB20A's Avatar
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    Re: Knocking

    what he said^^

    motors should be a dime a dosen over there go get another one

  12. #12


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    Re: Knocking

    oil starved = spun rod bearings.
    dead white and blue

  13. #13
    LXi User -$MOKIN-'s Avatar
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    Re: Knocking

    Last night i took her for a little ride. It sounds like the pistons hitting the valves to me. But i have no power loss at all. I gassed on it and let it wind out and it still feels strong besides the knocking sound. I have yet to do a compression check or take the oil out.


    Anyone know a link to a How to on rod bearings? I doesn't seem to difficult really..

  14. #14
    LX User 1813mdw's Avatar
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    Re: Knocking

    Quote Originally Posted by -$MOKIN- View Post
    Last night i took her for a little ride. It sounds like the pistons hitting the valves to me. But i have no power loss at all. I gassed on it and let it wind out and it still feels strong besides the knocking sound. I have yet to do a compression check or take the oil out.


    Anyone know a link to a How to on rod bearings? I doesn't seem to difficult really..
    if you've got shavings in your oil stop drivin it lol. might be somethin in the topend of the motor. pull the valve cover off and take a gander

  15. #15


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    Re: Knocking

    "it sounds like pistons hitting valves"


    ...
    dead white and blue

  16. #16

    Vanilla Sky's Avatar
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    Re: Knocking

    Rod bearing or main bearing. Either way, that motor is dead. Don't worry about doing a compression check, because it doesn't mean anything when you have problems elsewhere in your motor. That would me like testing the battery when the back half of the car is missing.

  17. #17
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    Re: Knocking

    bearings are shot you said yourself you did millions of donuts, constant high revving will starve the bearings of oil

  18. #18
    3Geez Veteran Rendon LX-i's Avatar
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    Re: Knocking

    Well you prolly just Made that thing worse. Either replace main/rod bearings check for damange see if you need new rods or crank since thats pretty bad. These motors are super cheap. i got my sei for 100. RUnning. so shouldnt be a problem


    200+ ALL MOTOR LS VTEC

  19. #19
    LXi User -$MOKIN-'s Avatar
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    Re: Knocking

    OK WELL I GOT A LITTLE TIME FOR THE HONDA TODAY.. I changed the oil and didnt see any shaving at all. And i did notice that the 3 middle exhaust manifold bolts are all three stripped so maybe thats where the knocking is coming from. Non of them are tight at all. anyone else think that the knocking could be form this..?
    I can start it becuase my freaking crankshaft pully isnt there anymore some how the damn thing popped off and my batterie is dead im goign to go to a lil shop down the street and see what they say,
    I might have to pull off the manifold and then re thread the holes. I have never done this before anyone got any ideas or know how to do it get at me
    Also how in the hell did my crank shaft pully off ? is it easy to replace?

    get at me people .Do ya think its jsut the damn exhaust maifold knocking on my block ?

  20. #20

    car6289's Avatar
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    Re: Knocking

    Quote Originally Posted by -$MOKIN- View Post
    OK WELL I GOT A LITTLE TIME FOR THE HONDA TODAY.. I changed the oil and didnt see any shaving at all. And i did notice that the 3 middle exhaust manifold bolts are all three stripped so maybe thats where the knocking is coming from. Non of them are tight at all. anyone else think that the knocking could be form this..?
    I can start it becuase my freaking crankshaft pully isnt there anymore some how the damn thing popped off and my batterie is dead im goign to go to a lil shop down the street and see what they say,
    I might have to pull off the manifold and then re thread the holes. I have never done this before anyone got any ideas or know how to do it get at me
    Also how in the hell did my crank shaft pully off ? is it easy to replace?

    get at me people .Do ya think its jsut the damn exhaust maifold knocking on my block ?
    Three loose exhaust manifold nuts/studs not likely the cause of your knocking, considering what you were doing (multiple donuts) before the knocking started. Still anything is possible. Replace or repair your exhaust studs/nuts as necessary. Replace exhaust gaskets while you have things apart. If the knocking goes away, you got off easy; if knocking persists, go deeper.

    Your crank pulley is held on to the end of the crankshaft by a bolt. The bolt either backed out {not likely if it was properly torqued (108 lb ft)}, the bolt broke, bolt threads failed, threads in crankshaft nfg, the pulley itself failed somehow. Do you have the pulley? Do you have the bolt and washer? Do you have the small parallel key? If you have the four items. Install the key, pulley, bolt and washer and torque to 108 lb ft. Install accessory belts.
    Learn from the mistakes of others. You'll not live long enough to make them all yourself.

  21. #21
    LXi User -$MOKIN-'s Avatar
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    Re: Knocking

    the actual pully itself broke the bolt is still there it broke on the inside ring part. so u dont think with all the 3 bolts being loose that it would make a knocking sound? the three in the middle are all loose and stripped

  22. #22

    car6289's Avatar
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    Re: Knocking

    I'm not saying it's impossible, just highly unlikely it's the exhaust manifold. The knocking could have been caused by your crank pulley before it broke. Look around the area that the crank pulley resides for damage. If the pulley was wobbling around for a while before it failed it could have left evidence of impact with things around its plane of wobbling rotation. Your knocking sound perhaps?
    You obviously need a replacement pulley before you can proceed with you knocking hunt.
    Learn from the mistakes of others. You'll not live long enough to make them all yourself.

  23. #23
    LXi User -$MOKIN-'s Avatar
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    Re: Knocking

    For some reason i have to keep thinking that its the manifold binging up against my head .
    Even after it started knocking i drove it a couple times .
    The first time i drove it i stopped and floored it to like 50 and it was knocking but it didnt loose any power or blow up on me..
    Then a couple weeks later i took it for a little drive got on the highway for like 5 miles even. On the way back from my friends house it was still knocking but running normal and i heard a bad noise from the engine area ... I was like o shit its going to blow now......lol

    So i gasses on it to make it home. It started to over heat so i jsut thought my alternator water pump belt broke and hit my fire wall and made the noise and never even checked to see if the crank shaft pully was gone .
    A couple days later i was like ok i gotta get her going and went to auto zone and got some oil a filter and a new belt. Changed the oil and then when i was doing the belt i noticed it was gone..

    But im glad i got that video and after watching it im thinking that its is possible its jsut those bolts loose..I think when i drove it a little hazardy that it just loosened up a shit load of bolts
    Sorta crazy how my pully broke .


    But yeah man im hopin it jsut those bolts ..

    And i can run it if my batterie wasnt dead as long as i dont run it to much ,but yeah i need that pully but im not going to get it if it still knocks.

    But its down to it i need to make sure that its just not the manifold knocking the block ..

    So wtf can i do ? All three bolts are stripped i really dont want to take the manifold off.

  24. #24
    3Geez Veteran lostforawhile's Avatar
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    Re: Knocking

    it sounds like your crank pulley, if it completely broke off the center of the mounting flange, there's a good chance it was flexing all over the place on the end of the crank, it might have been bent and hitting something, how did you drive around all that time, and not notice your crank pulley was gone? since the water pump wasn't turning, the head is probably warped or cracked from overheating, or other damage happened, you didn't notice the alternator light on or the temp gauge pegged out? it's a good idea in the future, if you think a belt is gone or the engine is overheating, or it's making a really bad noise, at least open the hood and look!! you originally had to buy a pulley, more then likely you now have major damage to fix, the one thing that will kill these engines faster then anything, is to drive them while overheating! one of the toughest engines Honda ever made, but overheating will kill them
    Last edited by lostforawhile; 04-21-2011 at 02:36 PM.

  25. #25

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    Re: Knocking

    wow a million donuts is a lot, come to think of it if I did even a hundred, no even fifty............

    I would fully not be surprized my car broke, in fact I would I expect it. good luck
    Last edited by 2oodoor; 04-21-2011 at 02:37 PM.

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