What kind of fuel does a cat C7 ACERT use?
In 2007 diesel fuel itself changed to Ultra Low Sulfur Diesel or ULSD. The fuel change dictated that the fuel system of the CAT C7 ACERT needed to change to a common-rail injection system. The new common-rail injectors took injection pressures to 25,000-27,500 psi. The fuel transfer pump supplies the fuel to the fuel rail at 280 psi.
What should I do if my cat C7 loses power?
It should bring up a code, loss of power, diagnostic usually starts, low boost, test the CAC, low fuel pressure, change the filters and be sure they are on properly, and the right ones, and proper pressure. The air system filter plugged, or exhaust. Turbo seized or malfunctioning, Valve set to tight.
What was the problem with the Caterpillar CAT C7 engine?
The ACERT Technology had a lot of problems for Caterpillar, first with the CAT C7 but more so later on with the CAT 13 and CAT 15 engines. The technology was really the first generation emissions technology for heavy duty diesel engines. The ACERT technology was prone to numerous regeneration issues. Drivers reported low power and low fuel economy.
What is the fuel delivery system on a cat C7?
The fuel delivery system on the CAT C7 is hydraulic electronically controlled unit injectors for the mid horsepower models and mechanically actuated and electronically controlled on the higher horsepower models. Both systems are metered and timed to inject multiple bursts of fuel to create a more efficient combustion cycle.
What kind of pump does a C7 engine use?
Just a thought! The early C7 engines were HEUI. They also had the fairly early version of the HEP HEUI pump, and were prone to breaking springs on the delivery valves of the high pressure pump. Your symptoms sound about right for a HEUI pump problem.
When did Caterpillar C7 engine go into effect?
The stricter Tier 4 emissions requirements went into effect January 1, 2004. The Caterpillar C7 was released in 2003, only months ahead of the Tier 4 ratings change, and replaced the popular 3126 model. Older CAT engines like the 3116 or 3126 were essentially grandfathered into the older tier rating requirements and did not need to be upgraded.
What kind of valve actuation does cat C7 use?
Within the design of the C7, the turbos use variable geometry valve actuation controlled by the ECM to adjust the perfect amount of airflow into the combustion chamber. This variable valve actuation also allows for the CAT C7 to offer an integral jake brake on two of the heavy duty diesel horsepower models.
How many horsepower does a Caterpillar C7 have?
The CAT C7 was available in 8 different horsepower ratings from 210 hp – 360 hp with torque ratings from 520-925 lb-ft of torque. The 330 hp and 360 hp models were only available in recreation vehicles and firefighting equipment. The first Caterpillar C7 models (210, 230 and 250 hp) were available in both low or high torque options.
When did the Caterpillar C7 diesel engine come out?
The Caterpillar C7 Engine was supposed to be the “golden child” in Caterpillar diesel engine lineup; one that combined raw horsepower with computer controlled clean emissions. However, sometimes things don’t go according to plan. The engine was produced from 2003 to 2009 and was installed primarily in over the road medium duty class 8 trucks.
What kind of smoke comes from a diesel engine?
Blue Smoke: Blue engine smoke is the rarest type of smoke emanating from a diesel engine. The presence of blue smoke is an indication of burning oil. Blue smoke should not be ignored but is common when starting an engine in a cold weather.
When to shut down a diesel engine with smoke?
No matter the color of the smoke it is not something you should ignore. A properly working and maintained diesel engine should produce no visible smoke. Make sure to shut down the engine immediately if you encounter excessive smoke as further heat or load could severely damage the engine further.