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Cavalier injectors

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  • Cavalier injectors

    So I have a couple of bad injectors on my 2004 Chevy Cavalier. I found that you can buy Keihin blue injectors online, which inject the correct amount of CNG (52cc) but do not completely fit physically. It fits, but does not seal against the hole in the cylinder. I was wondering if it would be possible to put an O-ring on the narrow brass part of the new injector (see photo) to make it seal against the hole the injector inserts into. I suspect it would take multiple O-rings to make sure that they cannot move. Does anyone see a reason why this would be a bad idea? Is there a better way to do this?
    Left: Original CNG injector Right: New one