How do you change the injector on a 3126 cat engine?
1. Remove oil drain plugs (1) at each end of the cylinder head. 2. Allow the engine oil to drain from the ports in the cylinder head before the injector is removed. 3. Disconnect harness connector (2) . Note: Some of these engines were built without the deflector.
Why is my cat 3126B engine not running?
Codes 34, 15, 18, and 39 will cause your 3126B engine NOT to run. The most common cause of the 3126B engine not to run due to codes 18 and 39 is the IAPCV. Or Injection Actuation Pressure Control Valve. This valve is located on the HEUI pump. It’s where the 2 wire connector hooks to the pump.
What does Flash code 55 mean on Cat 3126?
Flash Code 55 indicates that No Detected Faults have occurred since the ignition keyswitch has been turned to the ON position. Thanks for the information. Some of the codes will not cause your engine not to run and some will. Codes 29, 28, and 31 will not cause a 3126B engine to run.
Is the HEUI pump on a chasis 3126?
Ckm39928. It is a 3126. Not B or E. In a 2002 Freightliner chasis motor home. XC series Mechanic’s Assistant: Anything else you want the Equipment Mechanic to know before I connect you? I would think the 164-2 is a result of pressure fluctuation from the pump.
What happens if the fuel injector is not working?
Fuel injectors are a vital part of a complex fuel management system. Furthermore, New technology has made fuel injectors more precise than ever in dispensing fuel. If the fuel injectors are not operating properly, then other parts of the engine will be affected as well.
Do you have torque specs for injector hold downs?
Evacuate as much fuel and oil as possible from the cylinder before installation of the injector. Use Tooling (C) to evacuate the fuel. Several evacuations may be necessary. do you have the torque specs for the injector hold downs. Yes. Tighten the bolt on the exhaust side of the injector to 50 inch pounds.
When do fuel injectors need to be coded?
My theory (and I do not know this for sure..) is that normal injectors do not have to be coded for, however, high pressure/direct injection injectors do need to be coded for (or calibrated for really) You should also keep in mind that BMW changed the injectors at some point, and if you have the old ones you can’t just change one to a new one.
What causes low actuation pressure when replacing injectors?
If your engine was running before replacing the injectors and now it will not. I would fist suspect that one of the Orings on the injectors may have gotten cut and is causing high pressure oil to leak into the fuel system. This will cause low actuation pressure.
What causes a 3126B engine not to run?
Codes 29, 28, and 31 will not cause a 3126B engine to run. Codes 34, 15, 18, and 39 will cause your 3126B engine NOT to run. The most common cause of the 3126B engine not to run due to codes 18 and 39 is the IAPCV. Or Injection Actuation Pressure Control Valve. This valve is located on the HEUI pump.
What kind of oil does a cat 3126 take?
By the way my engine in Serial# HEP 280486. I tapped into the high pressure oil galley and put a 4000 psi gage in. Had a helper crank the engine while I watched. The pressure started up kind of slow and then quickly headed toward max on the gage.
When to remove valve cover on Caterpillar engine?
Experience: 23 Years Caterpillar Engine experience. Remove the valve mechanism cover. Refer to Disassembly and Assembly, “Valve Mechanism Cover – Remove and Install”. Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.