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  1. CraigTind

    Mercruiser 165 pulley alignment

    Having an issue with pulley alignment on a mid 70s Merc 165, 250 inline 6. Water pump and damper (harmonic balancer) are out of alignment by as much as a belt width. Water pump and pulley are correct parts however I have a question as to if the damper is correct. Apparently there are multiple...
  2. CraigTind

    Mercruiser 165 identification

    I have a 70s Merc 165 250 inline 6 with an id next to distributor of F0902 AB If correct the F0902 are location, month and date of manufacture but I've had no luck identifying "AB" which I believe is the year. Also is the serial number on the valve cover (4665746 in this case) also located...
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