How is the oil pressurized in a HEUI system?
How is the oil pressurized in a HEUI system?
The oil in a HEUI injection system works harder than any other engine oil in the world. Not only is it pressurized between 500 psi and 3,600 psi in the high-pressure circuit, but it is additionally responsible for lubricating and cooling the rest of the engine.
What do you need to know about a HEUI injector?
Because a HEUI injector requires both oil and diesel to follow intricate internal paths in order to operate, keeping both fluids as clean and fresh as possible is vital.
What do you need to know about the HEUI system?
3. Run a Quality Oil. The oil in a HEUI injection system works harder than any other engine oil in the world. Not only is it pressurized between 500 psi and 3,600 psi in the high-pressure circuit, but it is additionally responsible for lubricating and cooling the rest of the engine.
Is the HEUI still used in Caterpillar engines?
Although HEUI would still technically be employed in later engines (the 6.0L Power Stroke, Navistar VT365 and MaxxForce DT), due to these engines using injection system components from Sturman Industries (and Caterpillar owning the term HEUI), you’ll find that the HEUI acronym doesn’t exist in any engine literature.
How do you remove a HEUI pump from a car?
Remove the two 10 millimeter bolts with 16 millimeter heads hold the heui pump onto the engine. Remove the oil supply line to the pump. Remove the fuel filter housing. If the coolant line runs over the compressor you’ll have to remove that. Remove the electrical connector.
The oil in a HEUI injection system works harder than any other engine oil in the world. Not only is it pressurized between 500 psi and 3,600 psi in the high-pressure circuit, but it is additionally responsible for lubricating and cooling the rest of the engine.
How do you replace a HEUI pump on a cat C7 engine?
Put the old pump in a vice and remove all the old fittings to be reused. Drain the oil and remove the head. Inspect the solenoid for any metal debris. Get new pump ready. Swap all the fittings and reseal them. Keep the quick connect fitting loose to help with the reinstall. Slide the new heui pump in and connect the quick connect line.
Because a HEUI injector requires both oil and diesel to follow intricate internal paths in order to operate, keeping both fluids as clean and fresh as possible is vital.
