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97 z222 5.7L RPM advise

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Old 10-05-2017, 02:36 PM   #11

RX41761 is currently offline
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Default Re: 97 z222 5.7L RPM advise

Fuel filter is new. I have yet to check flame arrestor but will do that tonight. Thanks!
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  • Old 10-06-2017, 02:25 AM   #12

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    Default Re: 97 z222 5.7L RPM advise

    Bad news..dead cylinder. No compression!
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    Old 10-06-2017, 03:19 AM   #13
     
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    Default Re: 97 z222 5.7L RPM advise

    Quote:
    Originally Posted by RX41761 View Post
    Bad news..dead cylinder. No compression!
    Sorry to hear that RX41761. I hope you can get her back up and running for next season. Assuming everything else is in working order a short block can be had for around $2500.
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    Old 10-06-2017, 03:22 AM   #14

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    Default Re: 97 z222 5.7L RPM advise

    The guy i bought it from is a stand-up guy! He is taking it back and rebuilding for me at no charge. He works at a marina. Can't beat that!
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    Old 10-06-2017, 03:30 AM   #15
     
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    Default Re: 97 z222 5.7L RPM advise

    Wow, that is awesome! Can't beat a rebuilt motor in your Mariah.
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    Old 10-06-2017, 03:06 PM   #16

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    Default Re: 97 z222 5.7L RPM advise

    Well the picture simply shows a spark plug that has been shorted out. No compression or just no combustion on one cylinder? Are you sure it's not as simple as new plugs or did they do a compression check and find a bigger problem ?

    In any case if they fix it for you that's a good thing.
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    Old 10-06-2017, 04:13 PM   #17

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    Default Re: 97 z222 5.7L RPM advise

    I checked compression myself. Also finger over plug hole very little pressure.
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    Old 10-06-2017, 04:16 PM   #18

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    Default Re: 97 z222 5.7L RPM advise

    OK, how it was not obvious that motor was running with a dead cylinder surprises me.

    Good luck with the repair I hope you get back to full power.
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    Old 10-06-2017, 04:27 PM   #19

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    Default Re: 97 z222 5.7L RPM advise

    It ran surprisingly good. It was the oil leak and rpm that led me to this.
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    Old 10-06-2017, 05:18 PM   #20

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    Default Re: 97 z222 5.7L RPM advise

    I hesitate to say this but... if that plug was installed with a crushed electrode, that may have killed that cylinder. If raw fuel was accumulating with no combustion and wiping the cylinder walls it'll do that.
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