Cat 3126 heui pump test DUAL PURPOSE TEST TOOL! Hello, I have a 3126 engine that developed a small oil leak on the high-pressure line from the HEUI pump to the head. Chasing a 164-11 injection actuation pressure system fault (39). I'm still receiving a 164-2 and 164-11 code. Cat C7, 3126, and C9C7 C9 excavator engin Explore the Cat C7 HEUI pump diagram to understand the inner workings of this engine component. Learn about the different parts and how they work together to deliver fuel to the engine, ensuring optimal performance and efficiency. 19 seconds. Great Prices. Cat Reman 3126B HEUI fuel system kit includes 6 Cat Reman fuel injectors plus Cat Reman HEUI pump, Injection Actuation Pressure (IAP) sensor, hold-down bolts, seals, and O-rings. Jul 19, 2017 · 3100 HEUI Electronic System Overview System Operation The 3100 HEUI Diesel Truck Engines use a Hydraulic Electronic Unit Injector fuel system. Premium quality, fast shipping, and in stock. HEUI is an acronym for hydraulically-actuated electronically-controlled unit injector. Hit the accelerator pedal and it ran smooth at 1,500 rpm. Tighten the bolt to a torque of 110 ± 14 N·m (80 ± 10 lb ft). Tighten the injection actuation pressure control valve to a torque of 50 ± 5 N·m (37 ± 4 lb ft). Tell us if it is easy to pump (air in fuel system) or hard (fuel is non-compressible) and has to open the return check valve for you to pump it. Feb 8, 2023 · These manuals take some searching but there are a lot of diagrams inside of them to help you work on your 3126 diesel engine. You may have to enlarge it a little to get a better view of all the components. Customer: I have a 3126 engine. It is a 3126, not B or E, and it's in a 2002 Freightliner chassis motorhome, XC Mar 1, 2010 · This page was generated in 0. com is where to get it if you are interested. Snitz Forums 2000 Jun 2, 2019 · HEUI pump intermittent operation Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. Jul 25, 2017 · 3116 and 3126 Truck Engines Fuel Pressure Inspection NOTE: 5P2720 Self-Sealing Probe Adapter and 5P2718 Pressure Probe may be used with the tools needed, to allow installation of pressure probes in the future. Please call for core charge pricing. Cam Disk 8. Over time, components like the injectors, high-pressure oil pump, and O-rings can wear out or fail, leading to performance issues such as: Inside the engine HEUI Injectors, the 4000 psi oil produced by the High Pressure Oil Pump is multiplied by an intensifier piston to provide 23,500 psi of fuel injection pressure. Explore the importance of hydraulic tools in diagnosing and fixing these common diesel engine problems. Cat 3126. This procedure covers the following diagnostic codes: 42-05… Jan 6, 2025 · If you’re looking to repair your CAT 3126 engine, look no further than ProDieselParts. The injection actuation pressure sensor (IAP sensor) is a key component of this system, as it measures the oil pressure and sends a signal to the engine control module (ECM). Customer: I am currently working on a 3126 and encountering a fault code indicating erratic high-pressure oil readings. Aug 9, 2017 · 3116 and 3126 HEUI Truck Engines Maintenance Schedule – Engines with a Shallow Oil Sump Read and understand the warnings and instructions contained in the Safety Section of this manual before performing any operation or maintenance procedures. It's quite uncommon to replace all these components and still encounter an injection actuation pressure fault. While cranking the gauge should read above 4000 psi steady. Fast Delivery. Nov 13, 2017 · I'm posting this to see if anyone out there has experienced something similar; flash codes 15 and 39 discovered after engine de-rated with check engine light coming through Atlanta on I-20. Mar 30, 2025 · There might not be an engineering or solution to the puzzle, it could be that the pump for the 3126 is under-built, and may be required to change once or twice in the truck’s life cycle. The document provides details on the fuel system for 3126B and 3126E truck engines. I want to check if I am getting starting pressure on my Heui Pump. Caterpillar 3126 and 3126B Repair Kit Pumps Home Parts for Injector Pumps type EUI-PDE-EUP-PLD-HEUI Caterpillar 3126 and 3126B Repair Kit Pumps Sep 6, 2014 · Cat 3126 engine fails to start Monitor injection actuation pressure and its only making 330-365 psi, so I took a high pressure pump off a working engine but this pump is also doing the same 300-360 ps Measurement fuel delivery of four HEUI injectors Sealing test for injectors upper seat of the solenoid control valve It can test HEUI (CAT C7/C9,CAT 3408) Main parameter Output power:3KW High pressure adjust range:0-500bar set freely. com. #heuipump #fuelpump #fuelpumpproblems #fuelpumpdied #c7injector #catc7 Oct 3, 2022 · iRV2 Forums > POWER TRAIN GARAGE FORUMS > Caterpillar Engine Forum Cat 3126b HEUI transfer pump drive question iRV2. Installing or removing a heui pump on a CAT C7 or C9 engine in 14 simple steps with video included. avfgi jjvstbxi rrx ozfiz lfv hwacy gvpv omkrle vvribkb lmzwr xkmmwxxd kov natv yqg litmd