Home Forums Shifter Karts Is this detonation?

This topic contains 5 replies, has 4 voices, and was last updated by  James O’Brien 7 months, 3 weeks ago.

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  • #23983

    Britt Robinson
    Participant

    I took the head off my modified Honda and found that there is heavy pitting on the cylinder body between the bore and the o-ring, and similar conditions on the head. My initial reaction was corrosion from the cooling system. But then I realized it is all contained in the combustion chamber. These are the best photos I have right now…

     

    #23985

    Matt Dixon
    Participant

    Yes it is…

    #24000

    Greg Lindahl
    Participant

    Very much so.

    Check squish.

    Check fuel quality.

    Check timing.

    Check cc’s.

    Check for anything creating lean condition (air leak/carb settings).

    #25118

    James O’Brien
    Participant

    Yes, most common reason is timing curve. Unless you have some bad or low octane fuel.

    #25296

    Britt Robinson
    Participant

    James! I should’ve bought your cylinder and cylinder head when I had the chance. I snoozed AND lost on that one…

    #25312

    James O’Brien
    Participant

    There might still be one on eBay Britt if you haven’t figured anything out, It’s a 99 CKT mod. I think he wanted 300. Looked like it was in good shape. I have another, but it’s my championship setup from last year at SRK. So I would want a brick of gold for it ;)

    I’ll be up there Friday to run with you guys.

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