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help compression test questions

Discussion in 'General Tech and Maintenance' started by 97hatchdx, Sep 12, 2008.

  1. 97hatchdx

    97hatchdx New Member

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    ok so my..

    cyl1 - 130
    cyl2 - 0
    cyl 3 - 180
    cyl 4 - 180

    so after seeing that i took a cap of oil and poured it down the spark plug tube [aka wet test] and it still was at 0 compression.

    so does that mean its the headgasket or cylinder head? idk what to do from here :(
     
  2. phyregod

    phyregod !!YTINASNI

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    Wow, a 0??

    I'd bet you completely dropped a valve and smashed a hole in your piston.

    Even a blown head gasket would show 90s.
     
  3. 97hatchdx

    97hatchdx New Member

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    im about to go pull the head off right now and see. anything i should look for?
     
  4. phyregod

    phyregod !!YTINASNI

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    Its going to be blindingly obvious with 0 compression. There is some serious damage in there.
     
  5. 97hatchdx

    97hatchdx New Member

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    prolly just the head

    ive had timing belts break and bend all the valves, and never once hurt the piston
     
  6. 97hatchdx

    97hatchdx New Member

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    could it be the headgasket i installed?
     
  7. 97hatchdx

    97hatchdx New Member

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    so how can i tell if its teh HG or the head?
     
  8. 97hatchdx

    97hatchdx New Member

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    ?
     
  9. 97hatchdx

    97hatchdx New Member

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    so im going to try and swap the y8 head back onto the y8 block. this head may have gone bad when the rod snapped but i thought it looked perfect.

    but this y8 head had the same problem this y7 one has. the damn tapping noise. not near as bad as it is now, but my friend said it sounds like a lifter, altho these civics dont have lifters, so anyone got any ideas?
     
  10. 97hatchdx

    97hatchdx New Member

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  11. craiger

    craiger New Member

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    You show the compression test numbers, then you mention you put a different head on the motor before. I am trying to follow what you are doing. What happened in the first place??? Befroe you checked compression did you change the head, Why? Did you bend all the valves? Please slow down and be complete, then we might be able to help you out better.
     
  12. craiger

    craiger New Member

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    OK, I just read your other question thread's regarding the fuse for the fuel that you fixed and found that you did something to the timing. Ok, I think you got the timing wrong on your car. If the car was running before and now it shows that bad of compression the timing could be what is wrong.
     
  13. 97hatchdx

    97hatchdx New Member

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    well the head was donated from a blown rod block. and the rod that snapped is also the bad cylinder with no compression. so the valves were prolly smacked by the piston.

    picture for you too :D

    [​IMG]

    kaboom rod thru the block
     
  14. craiger

    craiger New Member

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    I had one do this to me about a year ago, the head was fine. No damage to the vavles and it still ran with the oil gushing out of the hole, unbelievable! That is why I sell Honda's!
     
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