3406b fuel pressure While a slightly elevated fuel pressure may not cause immediate issues, excessively high fuel pressure can lead to various problems, including potential damage to fuel system components such as injectors and the injector pump. 2010. Also, the "Fuel ratio valve" can leak boost, and not then not give enough fuel. In fact, there are those who have had this engine for decades without any issue at all. Turn the ignition switch to the “OFF” position. 6. com. Your governor can have issues. Some people who have the engine have been quite pleased with its performance. 6 liters (893 cubic inches), with a bore of 5. 5 turns on the fuel screw, 1 turn on the torque in the same direction. I had about 35 psi at idle and would drop to 18-22 under load. I have an Apr 11, 2014 · Took my playtoy with a 3406b for a ride today. ft. Use the positioning assembly for rack adjustment. 44 (12 %) Customer: I have 3406 c peec, fuel pressure does get up to 40psi but it take about 1 min to finally get that high at high idle no load 1800 rpm. 43. My Mac fuel pressure gauge fluctuates very rapidly at idle. The fuel system of the Cat 3406 engine is electronically controlled, ensuring precise fuel delivery and optimal performance. Feb 20, 2011 · I have done some research and found it could be the filter head and primer pump (primer pump is new) the fuel pressure regulator, check valve in the return line, or injector O rings. fuel pressure gauge bouncing Discussion in 'Peterbilt Forum' started by May 15, 2016 · I am driving a 1993 Freightliner with a Cat 3406b and last week the oil pressure would go down to 30psi when it was idling and then come back to about 48psi when driving. It is also called the "aneroid" in Bosch speak. Nothing there to be scared of. 7 S60. Complete fuel line kit with hold down clamps. Vapor disapates quickly. panel gp. Fuel level I was lower(40 gallons left in Nov 23, 2009 · 3406b fuel in oil. 15,928 Satisfied Customers. 11. Feb 1, 2014 · Last time I checked my fuel pressure it was 42 idle, and dropped to 30 under full load. And it was worst when fuel pressure readings were 6n8878 fuel pressure gauge group an attachment 3406b gen set engine . May 17, 2014 · You need to find the problem first. $195. FINDING TOP CENTER COMPRESSION POSITION FOR NO. When they fail. The individual fuel injection pumps get fuel from the fuel manifold and push fuel at a very high pressure through fuel lines (2) to fuel injection nozzles (1). View photos, details, and other Fuel Pumps for sale on MyLittleSalesman. Installing testing hardware for 3406 PEEC Engines Assalamualaikum,friends, in this video we will test the fuel pressure caterpillar 3406 Dec 1, 2021 · Checking low side fuel pressure on a 2009 enclave 3. It’s important to check the manufacturer’s specifications and adjust the fuel pressure accordingly. The timing advance you should get a surge after starting about 2 seconds later it should change. CAT 3406B Problems. 7 mkg). Great Prices. Much better results than the one mentioned above: Take the line and 2) 1/4" bolt cover off the air fuel ratio on the very back and top of the gov. The fuel hoses are considered a routine repair, and required every 6-8 years, so it is over do. When shopping for a Cat 3406B fuel pump Nov 22, 2005 · 3406B's have narrow rod brgs, aluminum pistons, weak timing advances, slow rate in the fuel pump. Cat Man. Illustration 18. Many times the valve can not only have a failed diaphram. Springs, gasket seals and wear parts are replaced with new. Is it because of the direct injection? Jul 17, 2020 · Hey fellas I got another question for ya, it’s an 85 Pete 359 with a 3406b question is how do you hook up a fuel pressure gauge I don’t have 1 in the truck idk if the person before me took it out or what, but how do you run the lines? May 28, 2022 · However in 94 or 95 they also introduced the 3406E which is an electronic engine and has the sensor you speak of. Jump to Latest Oil pressure was running 25 psi idle and 35 while driving between 1000-1500 rpm. It utilizes a direct injection system, where fuel is injected directly into the combustion chamber at high pressure. I am ASE Master Truck Certified. Cat Reman fuel transfer pumps are developed specifically for your Cat engine, to maintain a constant flow of fuel at the optimum pressure needed at any moment. Designed for counterclockwise rotation, it operates at a … Nov 7, 2007 · Cat 3406A,B,C , and later model 3306 On the back of the pump is a cover/plate that is said to be almost heart shaped(the AFC housing). White vapor is from coolant getting into the cylinders or exhaust. After shimming transfer pump, it is 50 idle and only drops to 34-35 under full load. When the fuel pressure in the high pressure fuel lines gets above the nozzle opening pressure the fuel is injected into the combustion chamber. Nov 21, 2008 · The fuel preasure you need about 30 lbs at full load and be sure the return line is open. To adjust correctly. Fuel transfer pumps like part # 0R-3008 draw fuel from the fuel tank and push it under pressure to the injectors on the engine. Jan 5, 2014 · 3406B Ser# 4mg92624, AR# 7F2194, Pump 7W3906, trans 18913A, 3. Dec 9, 2018 · I also check with a temp gun(I question it and need to get another to verify), but the steel portion of the return line before pressure regulator in filter base read around 115*. Here is the "springs method" for the 3406B&C. Mar 30, 2012 · White smoke is a sign of raw fuel which can be caused by several things, such as low compression or bad injectors. (GOOD USED) Caterpillar 3406B Diesel Engine High-Pressure Fuel Injection Pump, for sale!!!! OEM # 7W3906 Stock #: FP1055 For more information about this listing, shipping, technical questions email us at sales@jjrebuilders. 00 USD. The B and C full mechanical not PEEC had a rod from the pedal to the pump. 5r4728 gauge gp-fuel pressure electrical fuel pressure an attachment 3406b engine - machine 5r-4728: gauge gp-fuel pressure caterpillar sis online 3406b industrial engine 6tb09166-09856 sebp2558 Shop HHP for a Caterpillar 3406B, 3406C, 3406A Fuel Transfer Pump (3775846), Quality Diesel Engine Parts 1 Year Parts Warranty. For you, fixing your machine's fuel pressure problem means: Efficient operation: Low fuel pressure can cause engine failure, difficulty accelerating and sluggish navigation. Page 8 of 8 < Prev 1 Benefits of Fixing Low Fuel Pressure. 1. Doesn’t seem right. Illustration 1 g01096972 Hand priming pump (1) Air purge screw (2) Fuel pressure regulating valve. Per Tony's directive, errr, advise, (and some things I thought up on my own), I made the following changes: May 28, 2022 · The 90 degree fitting to the return line on the back of the injection pump has a little tiny orifice in it that restricts flow and builds the pressure, but I can't see that getting bored out. 1 PISTON No. should it not go right up to 40-45psi even at idle? NOTE: Use rack positioning assembly (1) as a "fuel ON" and "fuel OFF" control. I would wonder if you are having a fuel line trying to collapse since you are loosing pressure. (4. Loaded my psi falls to. 22,408 Satisfied Customers. 1 ± 0. There are 2 allen head screws behind that plate that have 3/8 (on B&C's pumps, a single 7/16 on the A) locknuts on them. operator station. 20psi just sounds to low to me. 0. Jan 19, 2010 · Once they’re at the factory settings you can do whatever you want with them, as long as you maintain the 1. Click for Cat 3406b horsepower and torque! Nov 13, 2024 · The Caterpillar 3406 marine engine is renowned for its durability and performance in marine propulsion applications. lifting gp-generator. I need a caterpillar mechanic. Feb 1, 2014 · Last time I checked my fuel pressure it was 42 idle, and dropped to 30 under full load. OR6960 turbo. Nich M. 5:1 ratio between the screws. We have about 20 psi of boost. Cooling System Find many great new & used options and get the best deals for Caterpillar #4n1797 3406b Fuel Tube Injection Line Adapter at the best online prices at eBay! Free shipping for many products! (GOOD USED) OEM Caterpillar 3406B Diesel Engine High-Pressure Fuel Injection Pump, for 1-855-664-1669 Email Seller More Details Line Socket (1) to tighten the fuel line nuts to 30 ± Slb. Expert. Fuel Bypass Valve The fuel bypass valve controls fuel pressure to the fuel injection pump at full speed to a pressure of 30 psi (2. Apr 17, 2013 · So, read some more threads and decided the issue must be low fuel pressure which brings me to this discussion. This information enables them to identify potential clogs, leaks, or other issues that may be affecting the efficiency of the fuel pump. May 28, 2022 · 3406b low boost and fuel pressure issues Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rs72z, May 28, 2022. Smoke hangs in the air. Stock # FP1062, MLS # 10300496 Nov 18, 2008 · We have an 89 KW T600 with 3406B. When you correct the problem Jan 12, 2021 · Note: Refer to Operation and Maintenance Manual, “Fuel System Secondary Filter – Replace” for information on replacing the filter. I am going to replace the filter head tomorrow, and I dont think it would be the injector O rings because there is no fuel in the coolant. Factors to Consider. Jul 25, 2024 · Fuel System. You will have low power and boost. Fast Delivery. If not you need to get it repaired. All fuel and timing control is done by oil pressure, springs and flyweights. Position the assembly to the full "fuel ON" position for all tests. 5n-2003 Aug 28, 2023 · Caterpillar 3406b (Cat 3406b for short) is an old engine model, yet it still receives lots of great feedback. Open air purge screw (1) for the fuel filter by three full How do i raise fuel pressure on a 3406b cat. com/results?search_q 3406B cat (4MG) I installed a fuel pressure gauge between secondary filter and injection pump. The special Cat tool group is needed. Only fuel allowed under load or no load. Cat® 3/4" Fuel Pressure Aluminum Regulator used in Fuel Check Valve with Seal O Ring Stor Oct 5, 2022 · This is why we are here to have a closer look at these CAT 3406B problems – what the symptoms are and what you can do about these. The new gauge always bounced alittle @ 40#. com or call 1-(844) 385-8503. Steps 8 and 9 do not apply to Non-PEEC engines. 7. Save Share that’s the air fuel ratio. Caterpillar 3406, 3406B, 3406C Fuel Injection Line Kit with Clamps. 3406 Peec Engines. Nov 10, 2006 · Yes, the fuel lines ON the engine are notorious for collapsing with age and heat. At the same time the motor started running a little rough. But malfunction internally. MSRP: $223. A hung open Jake can cause rough running and smoke. FSC Truckinghttps://www. 11 kg/cm2 ). Fuel pressure stays pretty steady at 40 psi. With the overlap and many just make the reference 3406 it’s easy to do. Page 3 of 8 < Prev 1 May 28, 2022 · 3406b low boost and fuel pressure issues Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rs72z, May 28, 2022. To much fuel and to little timing and your EGT's will be through the roof, and will smoke like crazy. -Aaron-2001 Volvo VNL64T420 12. You Save: $27. Early 3406C's would be a better pick, wider rod brgs, available 2 piece pistons if you really want to modify, fast lift on the pump cam and timing advances that live for more than 2 years. This four-stroke, inline six-cylinder diesel engine boasts a displacement of 14. 6n-8878 gauge gp-f generators. The brass sight glass after the regulator was 130*. 1 piston at top center (TC) on the com Dec 28, 2014 · The high pressure pumps now meter a small amount of fuel and sends it though the external high pressure fuel lines (9) at a very high pressure to the fuel injection nozzle (10). . Just cranking fuel to it is there is a timing problem could very easily burn it down, or gaul a piston. Let’s get right into it. That dosen't seem normal. youtube. But if we hold the throttle steady it gets solid at 56 psi. If it gets plugged your pressure goes way up. Sep 15, 2024 · The Cat 3406B fuel pump is a mechanical unit that uses a plunger and camshaft to create pressure and push the fuel into the engine. Look at this Caterpillar 3406B Fuel Pump for sale in Florida for $1,750. Again I’m gonna get another temp gun to check. Matt & I install our brand new fuel transfer (lift) pump on the 3406B CAT in Orwell (1984 Peterbilt 362). This valve should not affect fuel pressure at all. 55 ratio running on lowpro 24. I assume your filters are new. 4 inches (137 mm) and a stroke of 6. Each fuel injection nozzle has very small holes in the tip that change the flow of fuel to a very fine spray that gives good fuel combustion in the cylinder. 99. To determine the maximum allowable fuel pressure for the Caterpillar 3406B engine, it is recommended to consult the The proper fuel pressure for a 3406b injection pump is typically around 25-35 psi. It is designed to withstand heavy-duty use and has a long lifespan, but like any other mechanical part, it will eventually wear out and need replacement. 5 inches (165 mm). This results in improved fuel efficiency and reduced emissions. If you have low fuel pressure, it's essential that you correct the problem sooner, rather than later. What are some tips for optimizing the performance of a 3406b injection pump? The 3406B fuel pump diagram also helps technicians understand the fuel flow and pressure throughout the system. 5's. it seems to stay there but this unit has no power in higher gears and does not build much boost. kos ozgaw viouo knlvzlh bepot ndfi jwrwqmv maoiqp oei csbr