1999 330 ec oil pressure gauge

Discussion in 'General Maintenance/Repair Questions' started by dannyfranco, Jul 13, 2015.

  1. dannyfranco

    dannyfranco New Member

    4
    May 4, 2015
    new jersey
    1999 sea ray 330 express cruiser
    merc 380 horizons
    port side oil pressure gauge was replaced a few years back work great reads 40psi at cruise speed starboard has never been changed at cruising speed reads around 20psi motors run great any chance its the gauge
     
  2. fc3

    fc3 Just another eclectic geek TECHNICAL Contributor

    Nov 12, 2006
    Northern NJ
    1999 Sea Ray 330DA
    Twin 7.4 MPI (310 propshaft HP) V-drives
    Twin Mercury Marine marinized 7.4L L-29 V8s
    Cast iron block w 4-bolt mains
    Could be. Switch the port and starboard wires and see if the problem follows the gauge.

    Or, use an ohm meter and read the resistance on the sender.


    [TABLE="class: outer_border, width: 300, align: left"]
    [TR]
    [TD]PSI[/TD]
    [TD]Ohms[/TD]
    [/TR]
    [TR]
    [TD]0[/TD]
    [TD]227 - 257[/TD]
    [/TR]
    [TR]
    [TD]20[/TD]
    [TD]142 - 163[/TD]
    [/TR]
    [TR]
    [TD]40[/TD]
    [TD]92 - 114[/TD]
    [/TR]
    [TR]
    [TD]80[/TD]
    [TD]9 - 49[/TD]
    [/TR]
    [/TABLE]
     

Share This Page

Show Sidebar