Thermostat

Discussion in 'General Maintenance/Repair Questions' started by Tony Buchanan, Jul 20, 2020.

  1. Tony Buchanan

    Tony Buchanan New Member

    10
    Jul 20, 2020
    1974 searay 190
    SBC 350
    Hey guys I’m new here and slowly finding all the diagrams for my boat. I’ve got a 1974 SeaRay with a SBC 350 in it. It was rough when I bought it but it runs strong now. In this picture should there be a thermostat? If so what temp? 140-160? Thanks
     

    Attached Files:

  2. DennisWittig

    DennisWittig New Member PLATINUM Sponsor

    28
    Aug 22, 2008
    Port Ewen, New York
    2004 340 Sundancer (2017-now)
    1991 200 Overnighter (1991-now)
    Twin 8.1L V-Drives
    5.0L Alpha-One
    Yes and 160, there’s also a plastic holder that goes in there
     
  3. Espos4

    Espos4 Well-Known Member

    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    I think you need to turn the housing over and look inside there for the thermostat.
     
  4. DennisWittig

    DennisWittig New Member PLATINUM Sponsor

    28
    Aug 22, 2008
    Port Ewen, New York
    2004 340 Sundancer (2017-now)
    1991 200 Overnighter (1991-now)
    Twin 8.1L V-Drives
    5.0L Alpha-One
  5. Tony Buchanan

    Tony Buchanan New Member

    10
    Jul 20, 2020
    1974 searay 190
    SBC 350
    Thanks guys. I’ll pick that up tomorrow.
     
  6. hpcrank

    hpcrank Member

    136
    Feb 4, 2016
    Col. Spgs, Co-Lake Pueblo State Park
    1981 260 Sundancer with rebuilt 454/Mercruiser330-I/O. w/ alum. hard top with front and side wdos
    One rebuilt 330 hp. 454 Chevy
    My manual says 140 unless you do a lot of slow going like trolling, then use 160. My engine is a 1981 Mercruiser 330/454.
     

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