2006 Mercury 9.9 M4 1F10201FK Oil pressure switch

w2much

Lieutenant
Joined
Jun 22, 2005
Messages
1,289
Can or does this switch activate a guardian mode on this motor.? Can a bad switchbox keep the oil pressure light illuminated ? When started the light will illuminate for the 5 or so seconds then go off. It then comes back on and will stay on whether idling or throttled up.. I did check that there is good oil flow although I did not check the actuall pressure . I will try that today if I can get hold of a tester of sort.
 

w2much

Lieutenant
Joined
Jun 22, 2005
Messages
1,289
I put the motor aside while I worked on others. I am going to get some plumbing fixtures and rig an oil pressure test to get numbers. Hopefully this will help to affirm or not that there is indeed oil pressure . the gauge I wanted to try previously did not recommend use with liquids.
 
Top