7.4 oil pressure location

acp

acp

Member
Mar 6, 2017
36
Fort Lauderdale
Boat Info
340 Sundance 2001 Dinghy AB 8HP Johnson
Engines
mercruiser 7.4
I have a 2001 7.4 MPI I cant find were the oil pressure sender is located on the engine. My pressure was always at 40psi on starboard engine. I just notice my pressure drop to 10 psi. If i increase the rpm to 3000 it goes up den back down. I think is the pressure sensor but cant find it in my engine to put a analog gauge. I am not getting no alarm warning. Engine ruining smooth no noise or lost of power. Need location of that pressure sensor on the engine. TY
 
Pressure sender is on the port side aft. Easiest place to tap in is up top aft where the low pressure switch is located, has a single wire going to it
 
acp said:
I have a 2001 7.4 MPI I cant find were the oil pressure sender is located on the engine. My pressure was always at 40psi on starboard engine. I just notice my pressure drop to 10 psi. If i increase the rpm to 3000 it goes up den back down. I think is the pressure sensor but cant find it in my engine to put a analog gauge. I am not getting no alarm warning. Engine ruining smooth no noise or lost of power. Need location of that pressure sensor on the engine. TY
Click to expand...
Back side of engine right next to the ignition coil. Right where your spark plug wires should be coming up
 
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