Help! Bought a 1993 Four Winns W/ 5.0 OMC Cobra Motor and Drive - Losing power after crusing

cameron92

Seaman Apprentice
Joined
Jun 18, 2026
Messages
34
I have it hooked up to the hose that comes off this which leads to the intake on the thermostat.
 

cameron92

Seaman Apprentice
Joined
Jun 18, 2026
Messages
34
I have my pressure tester hooked up this way. That line leads to the freshwater intake. My tester has a bladder on it. If I cover my hand over where the hose came off I can hear water bubbling somewhere but no pressure holds.
 

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cameron92

Seaman Apprentice
Joined
Jun 18, 2026
Messages
34
I figured it out I had it open going back to the drive. Capped it off and now pumped it up. It's holding 15lbs psi
 
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