What are the issues with the cat C7 ACERT engine?
The ACERT technology was prone to numerous regeneration issues. Drivers reported low power and low fuel economy. It was common that the CAT C7 ACERT engines would experience overheating when driving up an incline. The cooling fan does not kick in until 235 degrees Fahrenheit while many drivers reported overheating at 200 degrees Fahrenheit.
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.
When did the Caterpillar C7 replace the 3126?
In the second half of 2003, Cat released the replacement for the 3126 version, known as the C7. Once again, you can see the trend as demand rises. Whether the circumstance involves making more power or keeping compliant with growing emissions standards; in order to compete, things must change.
Why did caterpillar Change the fuel pump on the C7?
With this change, Caterpillar changed the fuel system of the C7 to common-rail injection. The common-rail injection took injection pressures to 27,500 psi. The transfer pump supplies fuel to the fuel rail at 280 psi. The reduction of sulfur levels in ULSD means less lubricity, so circulating the fuel rapidly at high pressure keeps heat down.
What are the connecting rods on a Caterpillar C7 ACERT?
The connecting rods in the Caterpillar C7 ACERT are not forged, liked the CAT 3126, but consist of powdered metal with a fractured cap design. There are also various sizes and configuration of the connecting rods depending on the piston used in the engine.
What kind of air inlet system does cat C7 use?
With the ACERT design the smaller CAT C7 models used an air inlet system with multiple traditional wastegated turbos to boost air intake flow and pressure. The more midsized hp models used only a single turbo while the larger horsepower models used dual turbochargers working in conjunction for optimal airflow.
What’s the difference between Cat 3126 and Cat C7?
The most noticeable difference between the CAT 3126 and CAT C7 is within the valve train. The front gear train is mostly the same except for the gears which have fewer teeth and a more robust design. The front gear train is mostly the same except for the gears which have fewer teeth and a more robust design.
What kind of engine is a Caterpillar C7?
Caterpillar (Cat) is well known for large, earthmoving machinery, but is often overlooked when it comes to on-highway engine production. One of the engines Cat manufactures is the 7.2 liter C7 engine.
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.
When was the Caterpillar C7 diesel engine made?
The Caterpillar C7 Engine was produced from 2003 – 2009 and was originally touted to be the greatest CAT Engine ever made. However, things don’t always go according to plan. Read about the history and technical specs of this legacy engine. Looking for remanufactured diesel engine parts?
What was the cat C7 diesel engine good for?
The electronic configuration was also more robust to offer better fuel management and electronic sensors into the engine. The CAT C7 was really the first heavy duty diesel engine to offer a greatly expanded ECM or electronic computer module.
How many horsepower does a Caterpillar C7 engine have?
We offer remanufactured Caterpillar C7 engines in 150 – 500 hp configurations. Jacobs Diesel deliver the engines with new pistons, reconditioned connecting rods, new main bearings, new cam bearing…
What is the code for a C7 cat?
C7. 300hp. It shows code 6H 164. 51d 020 fail 07 can you help…. also should this truck have alot of blow by … read more Disclaimer: Information in questions, answers, and other posts on this site (“Posts”) comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts.
How big is the Caterpillar C7 diesel engine?
In the later 2007 models the turbocharger was also upgraded to variable nozzle technology which can offer appropriate boosts of horsepower at all engine rpms. The Caterpillar C7 engine is an line 6 cylinder diesel fueled engine with a displacement of 7.2 liters.
How to Prim a C7 accert after fuel filter change?
You want to start the engine at about half throttle, that way if there is any air in teh system it can pass thru and wont lose the system. if you have an eletric fuel pump, turn the key on and wait 30 seconds or so and shut it off and repeat a few times. every diesels class i have taken has said to prefill the filters with fuel.
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.
How to fix no crank on Chevy C5500?
The TCM is manufactured so that the heatsink of the TCM is isolated from all vehicle electrical systems including vehicle chassis ground.Do not ground welders,battery chargers,electrostatic painters or any other equipment to the heatsink.Disconnect the 80 way connector from the TCM when electrically welding etc. to the vehicle. 1.
How can I jump start my Chevy C5500?
1. Battery positive wires to touch the heatsink of the TCM [e.g.When jump starting vehicle] 2. Positive battery power chassis harness wire to pin 10 and pin 70 of the TCM to be wired without fuse protection of 10-15 amps. 3. Physical contact between heatsink and vehicle chassis or other ground circuit points.
Are there any problems with the Allison Transmission?
Allison transmissions are custom-designed for several different industries and provide valuable power and work. However, even these revolutionary pieces of equipment can have problems. Do you know how to identify and deal with an issue that may arise with your Allison transmission?
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.
When did Caterpillar stop making the C7 warrenty?
CAT & Freightliner are known to use any excuse not to honor the C7 warrenty since they stopped making highway rated motors 3 years ago.
How to change fuel filter on C7 accert?
Every fuel filter we change here gets filled with diesel before being put on our bulk fuel tanks have filters on them, have never had a problem in all the years. Just spin on the new filter. Then open the bleed screw and turn the key to on. It will run the fuel pump and fill the filter.
How to check a cat C7 loss of acceleration?
The best way to check is to inspect the IPR which in built inside the huei pump, and also pull the big plug on the pack of the cylinder head for the oil rail and catch the oil and inspect for metal and brass. I did not do a lot of them, C7’s but the 3126’s I did from day 1.
What kind of oil does a Caterpillar C7 use?
The approximate dry weight is 1,425 lb. Engine oil capacity is 4.75 gallons or 6.75 gallons with the optional deep sump oil pan. Cooling system capacity — engine only — is 3.99 gallons. Cat C7 engines produced in 2007 or later require the use of ultra low sulphur diesel — ULSD — fuel.
What are the power ratings for a cat C7?
Power Ratings. The Cat C7 was available with the following horsepower ratings: 210, 230, 250, 275, 300, 330, 350 and 360 hp. Torque ratings ranged from 520 up to 925 lb-ft. The 201, 230 and 250 hp. ratings were available in either a low torque or high torque option. The choice of torque options allowed different transmissions,…
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’s the top speed of a cat C7?
Top speed might be 35 – 40 mph. Need to kinda feather the throttle until the engine temp comes up to then it runs fine. See this thread……
What kind of fuel does a Caterpillar C7 use?
The original Caterpillar C7 would change configurations once again in 2007 to adjust to changing market demands. 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.
When does a cat C7 lose its power?
My C7 has plenty of power until the engine temp reaches 150 degrees. Then it experiences the power loss. Runs like a bat out hell until it comes out of cold mode.
Where is the serial number on a Caterpillar engine?
LOCATE YOUR CATERPILLAR ENGINE SERIAL NUMBER. When looking to buy a replacement engine for your piece of equipment, it is important to know the serial number of your current engine. This information can be found on the engine data plate, located on the left side by the injection pump. Engine serial numbers are also stamped on the engine block.
How long does a Caterpillar C7 engine run?
Fuel in water probe tested good with a multimeter and again after everything back together and full of fuel. Also replaced primary and 2ndary fuel filters after cleaning out the 210 prior to restarting. Truck will only run approximately 20 seconds now and shuts down after rapid engine protect light sequence.
Where can I get parts for a Caterpillar C7 engine?
Parts for C7 Caterpillar Engines. We carry a wide selection of parts for Caterpillar C7 diesel engines, including overhaul kits, piston kits and main bearing sets. If you need any help finding a part, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will promptly assist you.
What’s the life expectancy of a cat C7 engine?
B10 is the average life expectancy of an engine measured in miles where 10% of the produced engines failed and needed a major overhaul. Consequently, B50 is the average miles where 50% of the engines failed. With the CAT C7 the B50 rating of 450,000-500,000 miles.
What is code 62 on Caterpillar C7 engine?
Code 62 Whenever the Electronic Control Module ( ECM ) detects an active fault or condition the lamp will flash at five second intervals. If the lamp turns on and if the lamp stays on after initial startup, the ECM has detected a system problem. The Diagnostic lamp is also used for the idle Shutdown timer.