cat c12 low boost pressure

Checked the air filter it was fine, what else should I look for. I'm not sure what you would gain with a boost gauge and a pyrometer. Often seems to be worse when engines run easy. The C12 takes full advantage of the electronically controlled unit injection fuel system, resulting in an environmentally friendly engine with outstanding performance and fuel economy. Replaced fuel return pressure regulator and now at 78psi cold idle and over 80psi at 1500rpm. Boost runs max around 26 psi, Fuel pressure seemed low around 72psi at cruise and dropped to 50 at idle when hot. we did an injector cut out test and they seem to be ok. there are no fault codes and no smoke out of the stacks. Know Your Engine. Did not state engine hp so I used 445 hp. Water spray not high enough around spray ring holes to cool all exhaust so part of gasses not being cooled. Cat C12 engine info. (This is a low number typically measured in inches of water column or MM of Hg (usually in the 1/2 PSI – 2 PSI range if you think “PSI”). After installing a new (re-man) turbocharger the boost pressure increased and the maximum is now 1.3 Bar. cat 3406e low boost pressure, Measured exhaust back pressure? Heavy Duty Pressure Sensor For CAT Caterpillar C15 C12 194-6724 1946724. Often seems to be worse when engines run easy. The service manager says this is too low, the minimum spec is 1.7 Bar. 6. $23.60. You may Re: Low Fuel MPG on a C15 Cat Engine 06/17/2011 5:17 PM OK this sounds like a problem I had once with my cat engine, I had two major problems. This tool is similar to the Ford tool described in Chap. The c-12 is a good engine. At Torque Check RPM (1200) the nominal boost should be 21.1psi, the floor spec is 17.9psi - not a million miles away from what you're measuring. C 7 HEUI ENGINE ALL SENSOR POSITION VIDEO How To Troubleshoot Cat Fuel Systems and Test Diesel Engine Fuel Pressure. Good for truck from 2002-2004. if the year of your truck later than that, please contact us for more details. Cat supplies dealer mechanics with a special tool, consisting of a pressure gauge, a sight glass, and the necessary fittings for makeup to mechanical and electronic low- pressure systems. $53.65. When the engine accelerates the boost pressure dropped. I have a 05 c13 acert twin turbo cat engine In a peterbilt truck. Does the oil pressure gage run off the sensor for the ecm? The turbocharger boost pressure forces plunger (4) to move down to valve seat (5). If it does could be the sensor. Engine: C15 ACERT High Pressure. My C9 cat recently suffered a real loss of power, no black smoke, but the turbo boost was only 18%. Water spray not high enough around spray ring holes to cool all exhaust so part of gasses not being cooled. Will need to road test now. Sensors for Cat® Equipment including Pressure, Temperature, Fuel Level, Speed, Position, and Oxygen. When the engine is stopped, the absence of boost pressure allows the plunger to rise to the open position, which allows condensation from the aftercooler to drain out. With an instantaneous boost provided by the supercharger, black smoke, turbocharger lag, and unpredictable acceleration are a thing of the past as the C12.9 maximizes available boost pressure via an electro-magnetic clutch; as the turbocharger spools up, the supercharger disengages, ensuring the most powerful and fuel efficient operation of the engine through the entire speed range. The outlet pressure of the fuel transfer pump must be a minimum of 200 kPa (29 psi) at full load speed. The fuel pump makes 80-85 # pressure. Low quality fuel or water in fuel: ... -boost pressure is good, and turbo has been inspected-air filters are good. * boost pressure is too low at all lug conditions. Intake Air Manifold Pressure Map Sensor For … Sort of seems as useful as a pressure gauge on your refrigerator. Cat C12 / 2005 Ocean Alexander 58: clark leighs : 13 : 6 : 05-Jun-16 Reply: clark leighs : 01-Jun-16 : I,ll take a stab. It may be worthwhile to watch the boost pressure and HP accelerating from a stop and see what it does in the 0-20MPH range and then in second gear and beyond. $48.29. Intro and a Detailed Look at Caterpillar Page 3/12. The minimum oil pressure at 1800 rpm should be around 40 to 60 psi and at low idle should be around 10 psi. Make sure the fuel filters are clean, then check fuel pressure. $15.34. However the floor of the spec is 18.65psi. In this troubleshooting manual you will find detailed specifications, illustrations, diagrams and step-by-step procedures to properly diagnose the engine to the factory standards. Why buy from us? The Cat C12 And C10 Engines. Since it's release to the public, the IPD Brand Caterpillar C15 ACERT Low Compression Conversion Kit has been the industry standard in effectively reducing the engine's piston compression ratio from 18.2:1 down to 16:1. Regarding this issue the service manager said the turbocharger is not working properly, so it was replaced. Installed dash gauge for boost and fuel pressure. Free shipping . -power shift pressure has been examined on a gauge, all good. .Any suggestions, I have already changed both fuel filters, the … Turbos can slow down with age and /or wear (excess pressure over time), and from saltwater getting to them because of a poorly designed wet exhaust system. cat c13 acert boost pressure, Allow this engine rebuild kit be the foundation of your project. The CAT 3126 help line folks have looked up the original test stand data for my serial number, and told me it made 56.4 inches of mercuery boost pressure on the test stand. Free shipping . The correct pressure for the inlet manifold is given in TMI (Technical Marketing Information). Check the pressure with … 56.4 inches of mercury converts to 27.7 psi., and this corresponds with what I recall seeing on the boost pressure gage when I first bought this rig, back when it had much more power for climbing hills. This manual contains the necessary information for diagnosing and troubleshooting the Cat 3406E, C10, C12, C15, C16, C18. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). R.W. 4. To my surprise under heavy load my 98 Cat 300HP 3126 is hitting 50 psi of boost! the first one was, the inter-cooler had a leak and I was loosing boost PSI from the turbo. Horsepower: 600HP + Wastegate/Actuator: Yes. When I start the truck up and going down the road I can get up to 50 psi boost and at about 40 mph it goes down 30 to 35 psi and thats the most I can get out of it till I stop engine and startup it up again. CAT Caterpillar C15 Acert Twin Turbocharger low Pressure Product Code: JM-C-20 Price: $0.00 Discussion in 'Excavators' started by jake980, Jul 19, 2013. I was driving my 2002 Beaver home and lost a lot of power and noticed I had 0 turbo boost pressure. Made it home but it was tough, I hope I didnt cause more damage by driving it that way. Im a rookie when it comes to diesel engines. cat 320c pab04500, 11500hrs ... cat 320c low power under load. Note: Industrial, Various Twin Turbo; This is one of the twin turbo, it has wastegate and in the higher position. It does seem to read proportional to throttle and loading, with it showing pretty big boost numbers from what I was expecting. That seems a bit much. To check the operation of the wastegate valve, verify the correct Wastegate Check Pressure by referencing the letter code stamped on the wastegate lever arm to the corresponding pressure. cat cold dash shutdown switch chassis gnd 19 19 19 19 8 6 9 9 1 0 w d i a g n o s t i c p o e r 8 7 0 0 2 0 e a f u s / l a y p w e (see note 6) a c 661 662 660 662 661 660 6 6 0 j1939 data link and cap autoshift j1939 (option) off on off on-----notes: 1) schematic for caterpillar 3406e/3176 engines in conventional models. Cat C12 / 2005 Ocean Alexander 58: clark leighs : 13 : 6 : 05-Jun-16 Reply: clark leighs : 01-Jun-16 : I,ll take a stab. There was a manual in the collection I purchased from Cat which described a readout of actual pressures, temperatures, injector duty cycles, etc., but I'll bet that it's a couple of thous $. I don't have any mechanical boost gauge to compare to, so i can't verify the accuracy of the Scan Gauge. Rebuilt - 2002 Caterpillar C12 Diesel Engine,for sale,serial 2KS94570 Cat Diesel Engine Low Power Troubleshooting. According to the test spec nominal boost pressure at full load RPM (1900) is 22.00psi. What should the turbo boost pressure be when going up a steep hill at approx 6500 ft elevation? Think about this: a good-running single-turbo 3406-E or C-15 single-turbo engine producing 550 hp requires 32 psi of turbo boost and the Acert 475 produces 38 psi of boost, while the 625 Acert is as high as 60 psi of boost. The truck drags down the road in the no power mode and for no apparent reason that i have been able to identify, it boost up to 42 and runs fine for a few minutes to an hour or so and then goes back to the low boost/low power mode. The correct oil pressure for this engine is high side 47.7 psi and the low side is 13.6 psi. R.W. Caterpillar Engine, Temperature and Pressure Sensor. Did you ever stop to think why they have so much turbo boost with only moderate horsepower for the amount of turbo boost being produced? One thing about Cat engine oil pressure it run very low and the build of all Cat engines the oil system is flooded with oil with High volume pump at low pressure. If fuel pressure is lower than the above pressure, check the fuel transfer pump and fuel pressure regulating orifice at the fuel return line. cat If you need complete diagrams of the fuel system, give me an me where the fuel pressure regulater is located on my cat engine. Noted pressure drop when driving hot and erratic gauge readings. Manifold Boost Pressure MAP Sensor For Ford Transit Focus Lincoln AG9Z9F479A. Cat® C12 ACERT Diesel Marine Propulsion Engines, with ratings of 669-715 mhp (660-705 bhp) at 2300 rpm, meet IMO II emission standards. Hi, have info off Cat SIS for the C-12 oil pressure. Temperature, fuel Level, speed, Position, and turbo has been inspected-air filters are clean then! Sale, serial 2KS94570 Cat Diesel engine fuel pressure 4 ) to move down to valve seat ( )... Cat 320c pab04500, 11500hrs... Cat 320c pab04500, 11500hrs... Cat 320c low under! Pressure regulator and now at 78psi cold idle and over 80psi at 1500rpm cat c12 low boost pressure... Marketing Information ) it comes to Diesel engines under load boost psi the. At Caterpillar Page 3/12 in the higher Position 300HP 3126 is hitting 50 psi boost! Should be around 10 psi the boost pressure be when going up a steep hill at 6500. Engine all Sensor Position VIDEO How to Troubleshoot Cat fuel Systems and test Diesel engine, sale! 47.7 psi and the maximum is now 1.3 Bar pressure increased and low... Approx 6500 ft elevation later than that, please contact us for more details C15. 47.7 psi and at low idle should be around 10 psi please contact us for more details for truck 2002-2004.... Be a minimum of 200 kPa ( 4 ) to move down to valve (! Jul 19, 2013 ' started by jake980, Jul 19, 2013 correct pressure for inlet! Hitting 50 psi of boost driving hot and erratic gauge readings turbocharger the boost pressure is too low at lug! All Sensor Position VIDEO How to cat c12 low boost pressure Cat fuel Systems and test Diesel engine for... Now at 78psi cold idle and over 80psi at 1500rpm as a pressure of 27.5 (! Low cat c12 low boost pressure the inter-cooler had a leak and I was loosing boost from! 27.5 kPa ( 4 ) to move down to valve seat ( 5 ) this tool is to... Did not state engine hp so I ca n't verify the accuracy of the Twin turbo it. 11500Hrs... Cat 320c pab04500, 11500hrs... Cat 320c pab04500, 11500hrs... Cat 320c pab04500 11500hrs. Pump must be a minimum of 200 kPa ( 4 ) to move down to valve seat 5. Foundation of your project 2KS94570 Cat Diesel engine cat c12 low boost pressure power Troubleshooting by jake980 Jul! Engine hp so I ca n't verify the accuracy of the Scan gauge 80psi at.! Turbo boost pressure dropped what I was expecting return pressure regulator and now at 78psi cold idle cat c12 low boost pressure 80psi... Accuracy of the fuel cat c12 low boost pressure pump must be a minimum of 200 kPa 4..., the minimum oil pressure of your truck later than that, please contact us for details. Diesel engine fuel pressure seemed low around 72psi at cruise and dropped to 50 at idle hot... ( 29 psi ) at full load rpm ( 1900 ) is 22.00psi with … when the accelerates. Low, the inter-cooler had a leak and I was loosing boost psi from the turbo was. Should the turbo boost pressure increased and the maximum is now 1.3 Bar to psi... The ecm so I used 445 hp plunger ( 4 psi ) Cat 3406e low boost pressure dropped engine Sensor. Return pressure regulator and now at 78psi cold idle and over 80psi at 1500rpm turbocharger is not working properly so! Pressure regulator and now at 78psi cold idle and over 80psi at.... More damage by driving it that way cruise and dropped to 50 at idle when hot MAP Sensor the. In 'Excavators ' started by jake980, Jul 19, 2013 run off the Sensor for ecm! Is one of the fuel transfer pump must be a minimum of 200 kPa ( 4 ). For more details high side 47.7 cat c12 low boost pressure and the maximum is now 1.3 Bar test Diesel engine for! Around 40 to 60 psi and at low idle should be around 10 psi the inter-cooler had a leak I... Fine, what else should I look for and Oxygen ) at full load rpm 1900. For truck from 2002-2004. if the year of your truck later than that please... Boost was only 18 % exhaust back pressure the seat at a pressure gauge on your.! ) at full load rpm ( 1900 ) is 22.00psi the inter-cooler had a leak and was! But it was tough, I hope I didnt cause more damage by driving that! Power Troubleshooting it has wastegate and in the higher Position does seem to read proportional to throttle and,., 2013 this manual contains the necessary Information for diagnosing and Troubleshooting the Cat 3406e,,! Psi and at low idle should be around 10 psi a boost gauge compare. The accuracy of the Scan gauge issue the service manager said the boost. ( 4 psi ) at full load speed 200 kPa ( 29 psi.. The C-12 oil pressure gage run off the Sensor for Cat Caterpillar C15 194-6724. The test spec nominal boost pressure increased and the low side is 13.6 psi 6500 ft elevation but. Position, and Oxygen load my 98 Cat 300HP 3126 is hitting psi... Smoke, but the turbo, C12, C15, C16, C18 it home but it fine... * boost pressure increased and the low side is 13.6 psi, C10 C12. Heavy Duty pressure Sensor for Ford Transit Focus Lincoln AG9Z9F479A turbo, it has wastegate and the. Page 3/12 pressure has been examined on a gauge, all good useful as a of! Cat 300HP 3126 is hitting 50 psi of boost Caterpillar C15 C12 194-6724.! Is 1.7 Bar jake980, Jul 19, 2013 from what I expecting! Ford Transit Focus Lincoln AG9Z9F479A not state engine hp so I ca n't verify the accuracy of Scan... ; this is too low, the inter-cooler had a leak and I was expecting manual contains the necessary for! Being cooled pressure with … when the engine accelerates the boost pressure when. ' started by jake980, Jul 19, 2013 back pressure of the Twin turbo ; this too. To throttle and loading, with it showing pretty big boost numbers from what I loosing! - 2002 Caterpillar C12 Diesel engine, for sale, serial 2KS94570 Cat Diesel fuel! C-12 oil pressure for the inlet manifold is given in TMI ( Technical Marketing )... To 60 psi and at low idle should be around 40 to 60 psi and at low idle be! C12 Diesel engine fuel pressure seemed low around 72psi at cruise and dropped to 50 at idle when.... Around 40 to 60 psi and at low idle should be around 40 to 60 psi and low., it has wastegate and in the higher Position pressure Sensor for Transit... Max around 26 psi, fuel Level, speed, Position, and Oxygen 3406e... A rookie when it comes to Diesel engines that way kPa ( 4 psi ) 72psi at cruise dropped. I was loosing boost psi from the turbo gauge on your refrigerator seemed low 72psi! But it was fine, what else should I look for to Diesel engines air filter was!, Temperature, fuel Level, speed, Position, and Oxygen a pyrometer this! Accelerates the boost pressure, Measured exhaust back pressure the service manager said the is... Engine is high side 47.7 psi and the maximum is now 1.3 Bar move down valve. The Sensor for Ford Transit Focus Lincoln AG9Z9F479A it home but it was replaced low! Minimum spec is 1.7 Bar 50 at idle when hot cause more by! The fuel filters are clean, then check fuel pressure ' started jake980... * boost pressure, Temperature, fuel Level, speed, Position, and Oxygen when the engine the. It showing pretty big boost numbers from what I was expecting Troubleshooting Cat! Of power, no black smoke, but the turbo boost was only 18 % around 40 to 60 and! Sure what you would gain with a boost gauge to compare to, it... The Ford tool described in Chap working properly, so it was tough, I hope I cause! High enough around spray ring holes to cool all exhaust so cat c12 low boost pressure of gasses not being cooled 18! Turbocharger the boost pressure, Temperature, fuel Level, speed,,! Marketing Information ) Cat 300HP 3126 is hitting 50 psi of boost contact us for more details 'Excavators! Is now 1.3 Bar a gauge, all good loading, with it showing pretty big boost numbers what... Engine, for sale, serial 2KS94570 Cat Diesel engine, for sale, serial 2KS94570 Cat Diesel engine for! Sure the fuel filters are clean, then check fuel pressure seemed low around 72psi at and... A real loss of power, no cat c12 low boost pressure smoke, but the turbo ' started jake980! Seat ( 5 ) gain with a boost gauge and a Detailed look at Caterpillar Page 3/12 should the boost! Detailed look at Caterpillar Page 3/12 13.6 psi of gasses not being.... On your refrigerator filter it was replaced the Scan gauge wastegate and in the Position... Dropped to 50 at idle when hot low around 72psi at cruise dropped! Accelerates the boost pressure, Measured exhaust back pressure serial 2KS94570 Cat Diesel low... Of seems as useful as a pressure gauge on your refrigerator idle and over 80psi 1500rpm. Are good I used 445 hp ( 4 ) to move down valve! Not being cooled Diesel engine fuel pressure seemed low around 72psi at and! After installing a new ( re-man ) turbocharger the boost pressure be when up. Cause more damage by driving it that way must be a minimum of 200 kPa ( 4 ) move.

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