Where do I find things on the Mercruiser 4.3 LX

Sometimes it is hard to locate sensors and equipment on an engine.
Even making a search on google can still make it hard to understand the images.
I made this video as a tour of the components on the engine to make it easier for you to find it
We look for the
Oil Pressure Sending Unit
Oil Pressure Cut Off Switch
Oil Pressure Warning Switch
Oil Pump
Oil Filter
Starter
Slave Solenoid
Circuit Breaker
Shift Cut Out Switch
Fuel Filter
Fuel Pump
and more

[@gabrielmatthews237]

Where's the temperature sensor sending unit?

[@MrsBuddevil]

What wires do you have going to your oil pressure switch? Where does the black wire lead?

[@gabrielmatthews237]

Also the thermostat?

[@oisin1980]

I'm having crank no start issue. I have spark everything. Would the oik pressure sender unit prevent ecu letting injectors spray?

[@nordicDIYchannel]

Don’t think so. Engine has no oil pressure untiil it runs so it needs to allow start first.
I think those systems get activated by generator current.
Do ypu get enough fuel?

[@dronesdopedro]

if theres no oil pressure there is no corrent for the gasoline pump and the engin wont start. theres a low oil pressure sensor with 2 wires on the right side of the engine with also a oil gauge sender with only one wire. you must jump the 2 wieres from the low oil presure sensor turn que key and you will listen to the gasoline pump working and the engine sould start and you can buy a new sensor, if you dont listen the gasoline pump working theres something wrong with it or the wires. the oil presure sensor on the back side of the engine as shown here is only for the buzzer alarme.