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I think I hurt the motor.

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  • #31
    With the valve cover and spark plugs removed, they looked at the surface of the piston and cylinder walls with a camera. I'm not sure if they did a leak down or not but it seems like if is there anything wrong with the valve train they would have found it... What else should be done to see if its damaged? I'm no mechanic.

    Sent from my HTC One X using Tapatalk 2
    03 cobra

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    • #32
      You can't always see if a ringland is lifted with a bore scope. On an old motor of mine I had the heads off the car and still couldn't tell that a land was slightly lifted. You couldn't see till I pulled the pistons out. A compression test will tell you which cylinder is messed up.
      03 Dark Shadow Grey Mach1
      "SMOKEY"
      "SLOW STREET CAR"

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      • #33
        There are multiple tests that should be ran among with a conclusion as to what is causing the noise and the issue be fixed. I'm sure all this was done before any dyno tests performed.

        What kind of tapping was it? Did it seem to go along with the engine speed or did it seem faster? Was it more of a tapping or knocking? Did it seem like a hollow sound or was it more of a solid sound?

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        • #34
          Strap it to the dyno and boom goes the dynomite!

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          • #35
            Originally posted by Blackpony View Post
            There are multiple tests that should be ran among with a conclusion as to what is causing the noise and the issue be fixed. I'm sure all this was done before any dyno tests performed.

            What kind of tapping was it? Did it seem to go along with the engine speed or did it seem faster? Was it more of a tapping or knocking? Did it seem like a hollow sound or was it more of a solid sound?
            It sounds like a tapping noise coming from the top of the motor around the passenger cylinder head. It increases as the rpm increases. On a cold start its quiet untill it gets to operating temp. As far as hollow vs solid I honestly can't tell. The car has no decrease in power either...

            Sent from my HTC One X using Tapatalk 2
            03 cobra

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            • #36
              Originally posted by Dan03mach View Post
              You can't always see if a ringland is lifted with a bore scope. On an old motor of mine I had the heads off the car and still couldn't tell that a land was slightly lifted. You couldn't see till I pulled the pistons out. A compression test will tell you which cylinder is messed up.
              I appreciate your help thru the p.m. Surely a compression test was done before they called to say it's ok to put on the dyno.

              Sent from my HTC One X using Tapatalk 2
              03 cobra

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              • #37
                Originally posted by brandon01rt View Post
                Update: they tore the motor down and couldn't find anything wrong whatsoever. No idea as to where the knock is coming from... They even when in with a bore scope in checked the cylinders. They did find out that my intercooler pump is out and my canned tune from Amazon tuning is bad.
                So now its on the dyno about to be tuned and this whole ordeal is costing me about a grand.

                Sent from my HTC One X using Tapatalk 2
                So you bought a tune from Amazon?

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                • #38
                  Originally posted by FRANCISCO308 View Post
                  So you bought a tune from Amazon?
                  Attention Required! | Cloudflare
                  http://www.amazonracing.com
                  03 cobra

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                  • #39
                    I would listen to Dan, he is an expert at fucking these motors up

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                    • #40
                      Originally posted by slownbmta View Post
                      I would listen to Dan, he is an expert at fucking these motors up
                      He seems like he knows his shit and would go out of his way to help a guy out.
                      03 cobra

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                      • #41
                        Originally posted by brandon01rt View Post
                        He seems like he knows his shit and would go out of his way to help a guy out.
                        He is definitely always willing to help out, he's helped me with my car a few times. Even left the track, went to his house and got a part for my car so that I could race more one night....

                        But that doesn't mean I can't give him shit

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                        • #42
                          Originally posted by brandon01rt View Post
                          It sounds like a tapping noise coming from the top of the motor around the passenger cylinder head. It increases as the rpm increases. On a cold start its quiet untill it gets to operating temp. As far as hollow vs solid I honestly can't tell. The car has no decrease in power either...

                          Sent from my HTC One X using Tapatalk 2
                          Sounds like the top of a piston is slightly tapping the head. AKA lifted ringland. Not 100% that is the problem but it could be and that is what it sounds like to me from what you are describing. Now this can happen and your rings can still be good and doing a compression test will show that the compression is good. And if that is the case the only thing you can do is take the motor out and pull it all apart if you can't find what is causing the issue.
                          Last edited by Dan03mach; 10-02-2012, 10:54 PM.
                          03 Dark Shadow Grey Mach1
                          "SMOKEY"
                          "SLOW STREET CAR"

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                          • #43
                            Originally posted by slownbmta View Post
                            I would listen to Dan, he is an expert at fucking these motors up
                            TRUE!!! Don't let Dan tune your shit! lol

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                            • #44
                              Originally posted by brandon01rt View Post
                              http://www.amazonracing.com
                              lol.. What made you buy that crap?

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                              • #45
                                Originally posted by FRANCISCO308 View Post
                                lol.. What made you buy that crap?
                                A lot of people were running them on SVTP 4 years ago. Had a good rep. I was a broke college kid with no money to spend on a custom tune.
                                03 cobra

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