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Knock Or Not?

Discussion in 'General Tech and Maintenance' started by tdehnel, Feb 25, 2003.

  1. tdehnel

    tdehnel Senior Member

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    At idle, my motor is making a ticking sound. It's coming from inside the motor. I just finished installing the motor (with turbo) a month ago, and I've put about 1100 miles on it. It just started the other day. When I give it gas in neutral, the ticking seems to fade away as the revs increase past 3000rpm. Is this a mild knock or just a natural sound that i shouldn't worry about. It doesn't make the noise while I'm driving.
     
  2. mwasnp

    mwasnp Senior Member

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    That very well could be your valves, which is a bad sign. Do you over-rev your motor alot? And the ticking may seem to fade because the sound of motor is louder above 3000 rpm.
     
  3. turbinedzc

    turbinedzc Member

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    Sounds like valves, mine is doing the same thing. Need to adjust and tighten the valves.
     
  4. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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  5. tdehnel

    tdehnel Senior Member

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    Well boys, here's the problem:

    After looking under the hood a few times and trying to figure out what's happening, I took another look tonight. Well, 5 out of 6 nuts on my Skunk2 exhaust cam gear are gone. Simply gone. And this means my timing has advanced well over 10 degrees. I talked to the shop that put them on and they said they just slapped them on there without touching them. I can't believe they didn't make sure they were torqued down to spec.

    That has got to be the cause, correct?
     
  6. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Heh. Probably. Get the to pay for all the damage, and have a competent shop fix it for you.
     
  7. tdehnel

    tdehnel Senior Member

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    Well, what damage do you think there could be? I've got 9.2:1 pistons from Arias, so I'm not sure if they hit a valve at all. The timing was advanced 10 degrees exactly at the exhaust cam. Hopefully I can get some new nuts and set it back to 0, and hopefully if the noise goes away that means no problems.
     
  8. tdehnel

    tdehnel Senior Member

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    Oh yeah, and there is definitely a tapping sound, so that means something is hitting and something is being damaged, correct?
     
  9. thetoymaker

    thetoymaker Senior Member

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    a valve adjustment is easy, get the tool and a bent feeler guage from a snap-on dude.
    006 intake, 008 exhaust, make sure the feeler guage is snug going in and snug pulling out, it will take a couple of tries to get it right.
    B-series hondas.
    oh you'll need to replace the valve cover gasket as well.
     
  10. tdehnel

    tdehnel Senior Member

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    What about when I just fix that cam gear? Won't the problem be fixed because the timing is reset to 0 degrees?
     
  11. D See 2

    D See 2 Senior Member

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    all hondas are interference motors (piston to valve clearance).. i would DEFINITELY pull the head and have a look at your pistons. you'll be sorry if you dont.
     
  12. tdehnel

    tdehnel Senior Member

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    Thanks for the help. I'll insist that the shop do this, as they obviously didn't torque the cam gear nuts as tight as they should have, if at all.
     
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