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    OMC Cobra Shift Actuator and ESA Question

    I have a 1986 Renken 2050 which has a 5.7 liter OMC Cobra stern drive. I have completed the adjustments per the Hastings' post, but I have a question regarding how the shift actuator and ESA module operate together. On my Cobra, the shift actuator arm does not ride up the V to engage the ESA...
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    5.7 ltr OMC Cobra Head Cast#

    Does anybody know the correct cast# for the heads on a 1986 OMC Cobra 5.7 ltr stern drive? It appears the previous owner for my boat replaced the original heads with Chevy heads from 1976. Any help would be appreciated. Thanks. Gerry
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