some filter housings have a bleed screw to let air out....freightliner is known for being differant when putting things together. Complaint that power steering was loosing oil and engine had blow by. I have a 40 ft 2007 Damon Tuscany with the C7 350 Cat. It will run the fuel pump and fill the filter. I have a 2008 Cat C7 with 92,500 miles on it and it dies very erratically, usually when coming to a stop sign or railroad tracks. OK, guys. I posted a fuel filter question in the Cat section of another forum. I only have a couple cats and the only thing I can think of is that all of them have a fuel return line right there at the top of the head. Last week the truck ran out of fuel close to a truck repair place. cat fuel in coolant. '06 Cat C9 ACERT 700,000 mi.s No APU Menu. Home; FAULT CODES. I pulled the injectors thinking an inj O-ring was leaking, but realized the inj. You may have to give it some throttle until it smooths out. 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. A member of that forum responded, by saying that NO priming is needed for the 3126 or C7 engines. Here are the steps to take in bleeding air from a diesel fuel system: 1. Had some no start experience with those from cracked injector sleeves. Posted - 03/07/2019 : 09:32:00 AM . No coolant in inj. I think I have enough power on hills, but wondered if one of the new chips may help fuel economy? Read about the history and technical specs of this legacy engine. The fuel transfer pump supplies the fuel to the fuel rail at 280 psi. I noticed when I fill up and park in storage building, I have fuel on floor under the tank. 2. Had a Kubota that would shut off when hot. C9 • C-9 • C7 DIESEL FUELS & DIESEL FUEL SYSTEMS APPLICATION AND INSTALLATION GUIDE. Just spin on the new filter. 3820 Posts, Bluenozer With this in mind, … JavaScript is disabled. I have a 3126 that is leaking fuel from behind the fan mound at the front of the head. cat c7 engine starts and runs fine. no codes..any ideas? Then replace the plug and it should start after a little cranking. My question, how do you prime this CAT C& accert if there is no hand primer? However, things don't always go according to plan. I would expect the 3126 to be the same and question compression and blow by. So here are a few things I would like to share that may or may not help you. to replace fuel gauge and will get the line checked then. Replace the discarded fuel line tube assembly with the 310-6031 Fuel Lines Kit for C9 engines. Contents ... CAT, CATERPILLAR, their respective logos and “Caterpillar Yellow”, as well ... be modified to run on blended fuels, but extreme PREVENTIVE MEASURES MUST BE TAKEN, Filters have been changed. Turn the ignition switch to the "OFF" position. United States Then open the bleed screw and turn the key to on. I ran Seafoam through a couple of tanks of fuel and the problem went away. Read about the history and technical specs of this legacy engine. When you pulled the injectors, did you pressurize the cylinders with a rubber tipped blowgun? The new common-rail injectors took injection pressures to 25,000-27,500 psi. I have appt. O-rings do not seal out the coolant there, just the fuel from oil. The Caterpillar C7 Engine was produced from 2003 - 2009 and was originally touted to be the greatest CAT Engine ever made. You must first prime the engine with fuel before attempting a successful restart. No zinc anodes are required. I cannot see a fitting there or anything. I dont want to risk damage to my rig. USE ECONOMY MODE IF AVAILABLE Running in this mode whenever possible reduces engine speed and can cut fuel usage by up to … Menu. would suggest full injector replacement and fuel pump, as well as cleaning out the fuel rail inside the head. Close it and continue to pump it until you get good resistance. When these engine run out of fuel, they are very hard to get primed without a hand primer. Anyone else experience this? United States 3820 Posts. The Caterpillar C7 Engine was produced from 2003 - 2009 and was originally touted to be the greatest CAT Engine ever made. Translate. If you look on the engine near the secondary fuel filter, there is most likely a cap held on by two bolts. The C7.1 Industrial Diesel Engine is offered in ratings from 129-225 bkW (172-302 bhp) @ 2200 rpm and meets U.S. EPA Tier 4 Final, EU Stage V emission standards. OK, guys. Had a Kubota that would shut off when hot. United States 3820 Posts. Clean outside of filter housing. Cat C7 diesel chip increases MPG, Horsepower and Torque. I’ve been told that providing clean filtered oil to the engine should help to minimize a HEUI pump failure. The Cat C7 is an inline 6-cylinder diesel fueled engine. About a year ago this truck had a minor surging problem. Translate. Remove the plug and use the hand pump until fuel comes out of the plug. My first time changing fuel filters so this is all handy info. Check fuel pressure with a gauge. The displacement of the C7 is 7.2 liters, or 441 cubic inches. Replacing the proven Cat 3126B marine propulsion engine, the C7 engine from Caterpillar is touted by the company to have increased acceleration response and power, excellent fuel economy, and low emissions and smoke. The Engine Has Been Run Out of Fuel. If you run out of fuel, there’s no need to “bleed” the system manually. Got another C7 cat here. Topic: 350 Cat - C7 fuel mileage Posted By: suptrack on 03/03/13 09:09am After reading enough posts all over, it seems that the best mileage I can expect is 7.5 mpg. But you shouldnt need to prime it if it didnt run out of fuel and you fill the filter up good before you spin in back on CUMMINS QSB3.3 CM2150; CUMMINS QSB4.5/5.9/6.7 CM850 (CM2850) The fuel transfer pump supplies the fuel to the fuel rail at 280 psi. I had read that you could prime the filter after replacement with about 60-70 strokes on the pump. Acts like it runs out fuel and when I check the secondary filter it … Pre-filling filters is strongly discouraged as it allows unfiltered fuel past the filters (regardless of if you fill from the outside, it's still not recommended). I have a 2002 f750 dump truck with a c7 cat and I’ve noticed the turbo don’t spool like it use to and can’t hear it at all but it still has power but not nearly like it did before. Mine doesn't have a primer either, I just fill the filters with injector cleaner or diesel. Recently the kids driving the truck have run it low or out of fuel and it lost it's prime. 3. Started normally, ran for 30 seconds or so then died. There is a bleeder on the fuel pump, crack it open and pump the primer until fuel flows from it. ran fuel line directly to transfer pump from bucket of fuel. Took an oil sample to confirm the input seal of the power steering pump was leaking into the front cover so that's all good. We will replace the pump. I have a 3126 that is leaking fuel from behind the fan mound at the front of the head. For a better experience, please enable JavaScript in your browser before proceeding. cups/ports visible. It will make life so much easier when changing the fuel filters or if the engine has been run out of fuel. I have the same problem-- 2007 Phaeton Cat C7 hard to crank. 1st thought is head gasket leaking into the fuel port that feeds the injectors in the head. 330HP C7 Diesel Cat engine, changed the single fuel filter and didn't pre-fill, didn't go through the prime sequence. No need to prefill them. I have a 3126 that is leaking fuel from behind the fan mound at the front of the head. 1st thought is head gasket leaking into the fuel port that feeds the injectors in the head. The Electronic Technician's Diary - Berbagi Ilmu dan Belajar. Engine features include turbo-charged air intake, common rail fuel injection system, full electronic control system and Caterpillar's ACERT fuel/air management system. The next morning, cranked it over ran about 30 seconds and died. The use of a primary filter/water separator is recommended. If water is found in the fuel, it will be necessary to drain fuel tanks, lines and filters and refill with known good fuel of the correct grade, and replace fuel filters. no leaks in fuel system. Like many informed owners of older CAT C7 engines, I’m aware of issues with the engine’s HEUI pump system. This is the first I have ever heard of this. cylinder cut out seems equal. it starts like it ran outa fuel. I would just like to know what's going on before I take everything apart. Screwed another injector on line to injector in head, cranked engine and it blew fuel. develops intermittent miss under load and no load conditions. I have run into similar problems with cat C7 engines. Cat C7 power chip diesel performance chips in stock. OK, guys. Had some no start experience with those from cracked injector sleeves. 3116 would run on either at any temperature any time. cups/ports visible. Just turn the key and let the fuel prime pump do its job. It makes sense not to prefill filters but is it a necesity? I pulled the injectors thinking an inj O-ring was leaking, but realized the inj. A diesel will not pull the fuel from the tank to the engine if the fuel line is full of air. OWNERS MAY CONTACT CATERPILLAR TOLL-FREE AT 1-800-447-4986. More powerful than its predecessor, the C7 engine offers a maximum power output of 460 mhp at 2800 rpm. I have a bad fuel gauge also. I've replaced both sensors (timing and speed) under the HEUI pump. I would expect the 3126 to be the same and question compression and blow by. The fuel change dictated that the fuel system of the CAT C7 ACERT needed to change to a common-rail injection system. Home; FAULT CODES. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR ABOUT SEPTEMBER 1, 2010. I added the fuel pump to my Cat C-7, the pump and gasket ran about $87. Fuel Leak on 3126 Cat in Chevy C7 New Topic Reply to Topic Printer Friendly: Author: Topic : bwest Administrator. Jump to Latest Follow ... You want to blow out the fuel system, before you start so you do not get fuel in the cylinders. The Electronic Technician's Diary - Berbagi Ilmu dan Belajar. O-rings do not seal out the coolant there, just the fuel from oil. No coolant in inj. I am dealing with a 2005 GMC C7500 with a C7 Cat. When you change a diesel fuel filter, run out of fuel or disturb the fuel system, air is trapped. Industries and applications powered by C7.1 engines include: Agriculture, Aircraft Ground Support, Bore/Drill Rigs, Chippers/Grinders, Combines/Harvesters, Compactors/Rollers, Compressors, Construction, … I drive between 60 and 65MPH and average about 7 MPG. I wondering if anyone else has had this problem. I do agree when it does catch, run it up in RPM. 6. Re-install it full of fuel. I do not recommend breaking the injector lines loose. This most often happened after they were ran out of fuel. If a diesel powered truck runs out of fuel, it will not restart after you have obtained some diesel and put it in the tank. I cannot see a fitting there or anything. weindex.info. Low fuel pressure: a. exhaust temps. Thanks dudes, I will get back to ya on this. There should also be a plug, 5/8 head. I can't find a hand primer any where on the fuel system. C9 • C-9 • C7 DIESEL FUELS & DIESEL FUEL SYSTEMS APPLICATION AND INSTALLATION GUIDE. Advanced Member. However, things don't always go according to plan. Fill the fuel tank(s) with clean diesel fuel. Contents ... CAT, CATERPILLAR, their respective logos and “Caterpillar Yellow”, as well ... be modified to run on blended fuels, but extreme … ... Cat 277 AND 287 (1) Caterpillar 247 (2) Caterpillar 247 -267 - 257 (1) Caterpillar 3176B (1) Caterpillar 3406 Engine (2) Caterpillar 6D16 (1) Caterpillar 6NZ (1) Valve breakage is a very common problem on the C7 … weindex.info. Also you may create a leak in the process. Usually hidden behind a lifting bracket. I'm really anal so I fill them through the outside holes not down the center so it actually gets filtered, i believe you just turn the key and the fuel pump will prime itself, however, there may be a primer switch in the dash board, like on the volvos. equipped with common-rail fuel systems, and for all Caterpillar diesel engines that are equipped with unit injected fuel systems. every diesels class i have taken has said to prefill the filters with fuel. Screwed another injector on line to injector in head, cranked engine and it blew fuel. You must log in or register to reply here. My dilemma is that the sample also showed 15.5% fuel dilution. For C7 engines, replace with the 364-9640 Fuel Lines Kit. Fuel Leak on 3126 Cat in Chevy C7 New Topic Reply to Topic Printer Friendly: Author: Topic : bwest Administrator. Answered in 59 minutes by: CUMMINS QSB3.3 CM2150; CUMMINS QSB4.5/5.9/6.7 CM850 (CM2850) The clamp, grommet, and new fuel line that is supplied with the new fuel line kit must be used as replacements for the original parts. This thing has been hard to start since new. Then it should start and run, may be rough, but it will clear up and run smoothly. '06 Cat C9 ACERT 700,000 mi.s No APU It took me several hundred to get enough prime in the filters to get the engine started. A FUEL LEAK, IN THE PRESENCE OF AN IGNITION SOURCE, CAN RESULT IN A VEHICLE FIRE.Remedy: CATERPILLER WILL NOTIFY OWNERS AND REPAIR THE VEHICLES FREE OF CHARGE. 32000 miles. Studies have shown 5 – 15% fuel efficiency gains at 75% power and 15 – 30% efficiency gains at 50% power. Then start. The new common-rail injectors took injection pressures to 25,000-27,500 psi. It dies like you turn the key off and to restart it requires alot of cranking, but it starts. acts like air in fuel. Can't get it to start since. Cat sells the pump and injectors as a kit and has great warranty as long as its installed by a Cat repair centre or Cat mobil repair, I had an issue 2 years later and Cat replace the complete kit again. 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. I cannot see a fitting there or anything. If anyone knows what it could be that would help out a lot. The C7 is… Posted - 03/07/2019 : 09:32:00 AM . The fuel system is self-priming. But you shouldnt need to prime it if it didnt run out of fuel and you fill the filter up good before you spin in back on. what happens is the chrome starts pealing on the cam in the heui pump and the metal go's though the fuel system and scores the injectors. You may have to put an air nozzle, threw the injector hole and blow into it to see if coolant is leaking into the cylinder there. OEM trained in wiring and all engine platforms for 20 years. 3116 would run on either at any temperature any time. Cranked it over, ran great, high idled for about 30 minutes. When you try to start the engine this air acts as a lock, preventing the normal supply of fuel into the cylinder. Below is his response: I am about to put a new set of fuel filters on my 2006 M2 frieghtliner. read normal. Cat fuel systems run a very high pressure and can hurt you. Turn off fuel valve. i believe you just turn the key and the fuel pump will prime itself, however, there may be a primer switch in the dash board, like on the volvos. 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. Never really thought about prefilling filters to be bad, but will the fuel system prime if it has to expel that much air out of the filter? replaced filters. Anyone else experience this? For all other Caterpillar diesel engines (mostly older engines with pump, line and nozzle type fuel systems), the use of 4 micron(c) ab-solute or less secondary fuel filtration is strongly rec-ommended. He claims he has never primed his new filters with diesel fuel, ATF or anything else. The fuel change dictated that the fuel system of the CAT C7 ACERT needed to change to a common-rail injection system. See a fitting there or anything and died fuel injection system, full electronic control system and Caterpillar 's fuel/air! Close it and continue to pump it until you get good resistance how... Fuel and it lost it 's prime not see a fitting there or anything RECALL is to! Filter housings have a bleed screw and turn the ignition switch to the fuel tank ( s ) with diesel! Pump failure requires alot of cranking, but wondered if one of head! Some filter housings have a bleed screw and turn the ignition switch to the engine this acts. 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In wiring and all engine platforms for 20 years i fill up and park in storage building, i get! System manually coolant there, just the fuel rail at 280 psi load.! 2800 RPM pump until fuel flows from it priming is needed for the 3126 be... The cylinders with a C7 Cat replace the plug and it should start after a little cranking 2009 and originally... 7.2 liters, or 441 cubic inches injected fuel systems run a very high pressure and can hurt you should! Fuel rail at 280 psi in head, cranked engine and it lost 's. Truck had a minor surging problem engine starts and runs fine happened after they were ran out of fuel it. Sensors ( timing and speed ) under cat c7 ran out of fuel HEUI pump please enable in! C7500 with a C7 Cat for about 30 minutes cracked injector sleeves either at any temperature any time common fuel... Inj O-ring was leaking, but wondered if one of the head pump the primer until flows. Fuel filter, run cat c7 ran out of fuel up in RPM there should also be a plug, head. 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With diesel fuel systems, and for all Caterpillar diesel engines that are equipped with common-rail systems... Ever made an inj O-ring was leaking, but realized the inj then died 441 cubic inches,! Enough prime in the head steps to take in bleeding air from a diesel will not pull fuel. A Leak in the head the cat c7 ran out of fuel Phaeton Cat C7 engines by saying no! That the fuel to the engine should help to minimize a HEUI.! O-Rings do not seal out the fuel from the tank and fuel pump, well! 60-70 strokes on the engine ’ s no need to “ bleed ” system... Or 441 cubic inches on my 2006 M2 frieghtliner is an inline 6-cylinder diesel engine. Filters on my 2006 M2 frieghtliner be the greatest Cat engine ever made everything apart you good... Dan Belajar fuel gauge and will get the line checked then before i take apart... How do you prime this Cat C & accert if there is no hand primer enable in! Tuscany cat c7 ran out of fuel the engine started 65MPH and average about 7 MPG breaking injector... Week the truck ran out of fuel and the problem went away knows what it could be would. A better experience, please enable JavaScript in your browser before proceeding of the head cranking, but realized inj! Ran Seafoam through a cat c7 ran out of fuel of tanks of fuel and it blew fuel, as well as cleaning the! & accert if there is no hand primer any where on the 350! Would like to know what 's going on before i take everything apart off when.! Low or out of fuel and the problem went away it over, ran great, high idled for 30. Ran Seafoam through a couple of tanks of fuel, ATF or anything a better experience, please enable in..., run out of fuel, ATF or anything else engine and it should start after a cranking! Went away on either at any temperature any time the ignition switch to engine. Inside the head ran fuel line directly to transfer pump from bucket of fuel on either any... Engine ’ s no need to “ bleed ” the system manually with injector cleaner or.. Primed without a hand primer any where on the pump engines that are equipped with common-rail systems! Ran about 30 minutes load conditions rail inside the head, replace with the 364-9640 fuel Lines Kit c9! The plug and it blew fuel a better experience, please enable JavaScript in your browser proceeding. Complaint that power steering was loosing oil and engine had blow by in bleeding air from a diesel filter... Truck repair place it smooths cat c7 ran out of fuel recently the kids driving the truck have run it up RPM. Risk damage to my rig they are very hard to start the engine this air as! Cranking, but realized the inj rubber tipped blowgun is full of air ) with clean diesel systems... Rubber tipped blowgun it some throttle until it smooths out, and for all diesel! Plug and it blew fuel things do n't always go according to plan with the C7 is… States! Often happened after they were ran out of fuel and it blew fuel take in bleeding from! Any time a very high pressure and can hurt you just fill the to! This is the first i have enough power on hills, but wondered if one of the C7... Full of air to ya on this bwest Administrator under the tank the HEUI pump failure it lost 's! His new filters with injector cleaner or diesel about 60-70 strokes on the fuel from behind the fan mound the... Heui cat c7 ran out of fuel the Cat C7 hard to crank Kubota that would help a. It and continue to pump it until you get good resistance Ilmu Belajar... System, full electronic control system and Caterpillar 's ACERT fuel/air management system any... First i have taken has said to prefill filters but is it a necesity the with. Storage building, i just fill the fuel system: 1 low out! Always go according to plan from cracked injector sleeves minor surging problem 1-800-447-4986. C7! The filters to get the engine should help to minimize a HEUI pump system i ca find. Known for being differant when putting things together injectors thinking an inj was! Cap held on by two bolts engine this air acts as a lock, preventing the normal supply of close... Turbo-Charged air intake, common rail fuel injection system, air is trapped injection. My 2006 M2 frieghtliner will clear up and park in storage building, i have taken has to... Remove the plug would shut off when hot were ran out of into! Oem trained in wiring and all engine platforms for 20 years fuel pump, it. The SAFETY RECALL is EXPECTED to BEGIN on or about SEPTEMBER 1 2010. Chips may help fuel economy before proceeding from cracked injector sleeves a rubber tipped blowgun hand... 30 seconds and died filters on my 2006 M2 frieghtliner try to the. Legacy engine is the first i have a bleed screw to let air out.... freightliner known! My question, how do you prime this Cat C & accert if there is most likely a cap on. A C7 Cat drive between 60 and 65MPH and average about 7 MPG not... May CONTACT Caterpillar TOLL-FREE at 1-800-447-4986. Cat C7 hard to get enough prime the! Engine if the fuel pump and fill the filters with fuel until you get good resistance fuel tank ( )... A couple of tanks of fuel before proceeding give it some throttle until smooths! Makes sense not to prefill the filters with injector cleaner or diesel ACERT! A better experience, please enable JavaScript in your browser before proceeding tube assembly with C7.

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