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  1. J

    Starter Engages Motor Clunks and Shakes

    Hi guys, I have a 1989 mercruiser 5.7 liter, alpha 1 out drive. Boat was running alright Thursday night. Went out Friday morning, boat starts runs, I idle away from dock 30 seconds then dies. Repeat a few times, the last time the boat died slowly and made some ugly clunking noises as it...
  2. J

    Engine Temp Rises/Overheats at Idle, Cools to Normal Temps while Moving...?

    Thank you all again for the help correctly diagnosing the bad ground wire issue from my previous thread. Hopefully this issue is similarly easy to diagnose and fix. As mentioned in the thread topic, my engine temperature rises/overheats at idle both in the driveway and in the water but cools...
  3. J

    5.7 Merc Does Not Want to Run, Diagnostic Help Desired

    Hello, First post but I have been helped immensely by searching and lurking so a big thank you to the community. As the title implies I have a boat motor that does not want to run. Specifics. Boat is a 1989 Sea Ray with a 5.7 liter Mercruiser and Alpha 1. Serial number OC xxxxxxx (do not...
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