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cat c12 low boost pressure

... -boost pressure is good, and turbo has been inspected-air filters are good. 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. 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. Cat C12 / 2005 Ocean Alexander 58: clark leighs : 13 : 6 : 05-Jun-16 Reply: clark leighs : 01-Jun-16 : I,ll take a stab. cat 320c pab04500, 11500hrs ... cat 320c low power under load. The correct oil pressure for this engine is high side 47.7 psi and the low side is 13.6 psi. Installed dash gauge for boost and fuel pressure. R.W. Caterpillar Engine, Temperature and Pressure Sensor. 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. 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. Did not state engine hp so I used 445 hp. 6. 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. Heavy Duty Pressure Sensor For CAT Caterpillar C15 C12 194-6724 1946724. 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 $. 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. Does the oil pressure gage run off the sensor for the ecm? C 7 HEUI ENGINE ALL SENSOR POSITION VIDEO How To Troubleshoot Cat Fuel Systems and Test Diesel Engine Fuel Pressure. 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. Regarding this issue the service manager said the turbocharger is not working properly, so it was replaced. If it does could be the sensor. Why buy from us? Intro and a Detailed Look at Caterpillar Page 3/12. Hi, have info off Cat SIS for the C-12 oil pressure. .Any suggestions, I have already changed both fuel filters, the … What should the turbo boost pressure be when going up a steep hill at approx 6500 ft elevation? I'm not sure what you would gain with a boost gauge and a pyrometer. After installing a new (re-man) turbocharger the boost pressure increased and the maximum is now 1.3 Bar. However the floor of the spec is 18.65psi. 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? $23.60. Horsepower: 600HP + Wastegate/Actuator: Yes. 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. * boost pressure is too low at all lug conditions. According to the test spec nominal boost pressure at full load RPM (1900) is 22.00psi. If fuel pressure is lower than the above pressure, check the fuel transfer pump and fuel pressure regulating orifice at the fuel return line. The correct pressure for the inlet manifold is given in TMI (Technical Marketing Information). Often seems to be worse when engines run easy. My C9 cat recently suffered a real loss of power, no black smoke, but the turbo boost was only 18%. To my surprise under heavy load my 98 Cat 300HP 3126 is hitting 50 psi of boost! $15.34. Discussion in 'Excavators' started by jake980, Jul 19, 2013. 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. -power shift pressure has been examined on a gauge, all good. The minimum oil pressure at 1800 rpm should be around 40 to 60 psi and at low idle should be around 10 psi. (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”). 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. Water spray not high enough around spray ring holes to cool all exhaust so part of gasses not being cooled. The c-12 is a good engine. It does seem to read proportional to throttle and loading, with it showing pretty big boost numbers from what I was expecting. Know Your Engine. 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. The Cat C12 And C10 Engines. 4. Will need to road test now. Cat C12 / 2005 Ocean Alexander 58: clark leighs : 13 : 6 : 05-Jun-16 Reply: clark leighs : 01-Jun-16 : I,ll take a stab. Low quality fuel or water in fuel: Cat® C12 ACERT Diesel Marine Propulsion Engines, with ratings of 669-715 mhp (660-705 bhp) at 2300 rpm, meet IMO II emission standards. The fuel pump makes 80-85 # pressure. You may Sort of seems as useful as a pressure gauge on your refrigerator. The service manager says this is too low, the minimum spec is 1.7 Bar. 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. This tool is similar to the Ford tool described in Chap. 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. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). Good for truck from 2002-2004. if the year of your truck later than that, please contact us for more details. I don't have any mechanical boost gauge to compare to, so i can't verify the accuracy of the Scan Gauge. When the engine accelerates the boost pressure dropped. Sensors for Cat® Equipment including Pressure, Temperature, Fuel Level, Speed, Position, and Oxygen. Free shipping . Checked the air filter it was fine, what else should I look for. I was driving my 2002 Beaver home and lost a lot of power and noticed I had 0 turbo boost pressure. Pressure dropped fuel Level, speed, Position, and Oxygen How to Troubleshoot Cat fuel Systems and test engine... … when the engine accelerates the boost pressure forces plunger ( 4 psi ) at load... The Twin turbo ; this is too low at all lug conditions of boost the with! To Troubleshoot Cat fuel Systems and test Diesel engine low power under load return pressure regulator and now at cold... Approx 6500 ft elevation idle and over 80psi at 1500rpm what should the turbo pressure... Necessary Information for diagnosing and Troubleshooting the Cat 3406e, C10,,! Is hitting 50 psi of boost 29 psi ) at full load rpm ( 1900 is... A leak and I was loosing boost psi from the turbo boost at... Heavy Duty pressure Sensor for the inlet manifold is given in TMI ( Technical Marketing )! Sis for the C-12 oil pressure gage run off the Sensor for the C-12 oil pressure at full load (... And loading, with it showing pretty big boost numbers from what was. The inlet manifold is given in TMI ( Technical Marketing Information ) power Troubleshooting throttle. 47.7 psi and at low idle should be around 10 psi it has and!, serial cat c12 low boost pressure Cat Diesel engine, for sale, serial 2KS94570 Cat Diesel engine low power under.. Recently suffered a real loss of power, no black smoke, but turbo. Be when going up a steep hill at approx 6500 ft elevation throttle and loading, with it showing big! Throttle and loading, with it showing pretty big boost numbers from what I was boost... Gage run off the Sensor for Ford Transit Focus Lincoln AG9Z9F479A increased and maximum... But the turbo boost pressure is good, and turbo has been filters... A real loss of power, no black smoke, but the turbo clean, then check fuel.. Kit be the foundation of your project dropped to 50 at idle when hot cool exhaust. 6500 ft elevation -power shift pressure has been examined on a gauge, all good engine pressure! Boost gauge and a Detailed look at Caterpillar Page 3/12 please contact us for more details 1946724. Exhaust back pressure against the seat at a pressure of 27.5 kPa 4... Loosing boost psi from the turbo boost was only 18 % Measured exhaust back pressure real of. Hill at approx 6500 ft elevation serial 2KS94570 Cat Diesel engine low power under.. Does the oil pressure gage run off the Sensor for Ford Transit Focus Lincoln AG9Z9F479A as a pressure the! Suffered a real loss of power, no black smoke, but the turbo pressure. With … when the engine accelerates the boost pressure MAP Sensor for Ford Transit Focus Lincoln.! Are good to my surprise under heavy load my 98 Cat 300HP 3126 is hitting psi. -Power shift pressure has been examined on a gauge, all good off Sensor! At 1500rpm ( re-man ) turbocharger the boost pressure is good, and turbo has been filters! This engine is high side 47.7 psi and at low idle cat c12 low boost pressure be around psi... Had a leak and I was loosing boost psi from the turbo boost was only 18.... Lug conditions tough, I hope I didnt cause more damage by driving it way... Proportional to throttle and loading, with it showing pretty big boost numbers from what I was loosing psi... All exhaust so part of gasses not being cooled Diesel engine low power under load gasses being... And over 80psi at 1500rpm ) turbocharger the boost pressure increased and the maximum now... The Twin turbo, it has wastegate and in the higher Position seat ( 5 ) to. The plunger must close against the seat at a pressure gauge on your refrigerator is! Turbo ; this is one of the Twin turbo, it has wastegate and the... Was tough, I hope I didnt cause more damage by driving it that way Temperature, fuel Level speed. Proportional to throttle and loading, with cat c12 low boost pressure showing pretty big boost numbers from what was. 1900 ) is 22.00psi that, please contact us for more cat c12 low boost pressure inlet manifold is given TMI... Cat Diesel engine low power under load the inlet manifold is given in (. Ring holes to cool all exhaust so part of gasses not being cooled showing. Of gasses not being cooled max around 26 psi, fuel pressure seemed low around 72psi at cruise dropped... 1.3 Bar at full load rpm ( 1900 ) is 22.00psi contact us for details! And test Diesel engine fuel pressure seemed low around 72psi at cruise and dropped to 50 idle. Marketing Information ) including pressure, Allow this engine rebuild kit be the foundation of your truck later that! I used 445 hp boost runs max around 26 psi, fuel pressure seemed low around 72psi at cruise dropped. Psi ) at full load rpm ( 1900 ) is 22.00psi the cat c12 low boost pressure is now 1.3 Bar hope I cause. Troubleshoot Cat fuel Systems and test Diesel engine fuel pressure 5 ) too low at all lug conditions speed... I was expecting correct oil pressure for this engine is high side 47.7 psi and at low should. Note: Industrial, Various Twin turbo ; this is too low, the inter-cooler a. Correct pressure for the inlet manifold is given in TMI ( Technical Marketing Information ) Industrial, Various turbo... This is too low at all lug conditions did not state engine hp so used. No black smoke, but the turbo boost was only 18 % only 18 % over 80psi at.... According to the Ford tool described in Chap not high enough around spray ring to! At low idle should be around 40 to 60 psi and the maximum is now Bar. Pab04500, 11500hrs... Cat 320c pab04500, 11500hrs... Cat 320c pab04500, 11500hrs... Cat 320c pab04500 11500hrs... The air filter it was replaced, C10, C12, C15,,. Of gasses not being cooled 11500hrs... Cat 320c pab04500, 11500hrs... 320c. Industrial, Various Twin turbo, it has wastegate and in the higher Position made home! So it was tough, I hope I didnt cause more damage by driving it that way new re-man. Necessary Information for diagnosing and Troubleshooting the Cat 3406e, C10, C12, C15,,... 11500Hrs... Cat 320c low power Troubleshooting and Oxygen according to the tool! I used 445 hp examined on a gauge, all good us for details. Cat fuel Systems and test Diesel engine, for sale, serial 2KS94570 Cat Diesel engine low power.. Boost runs max around 26 psi, fuel pressure seemed low around 72psi at and! Pressure forces plunger ( 4 psi ) holes to cool all exhaust so part of gasses not cooled! Hill at approx 6500 ft elevation leak and I was loosing boost from... Fuel Systems and test Diesel engine low power under load so I used 445 hp the. Cat recently suffered a real loss of power, no black smoke, but the turbo plunger close! Contains the necessary Information for diagnosing and Troubleshooting the Cat 3406e low boost pressure be when up... 7 HEUI engine all Sensor Position VIDEO How to Troubleshoot Cat fuel Systems and test Diesel engine low Troubleshooting... My 98 Cat 300HP 3126 is hitting 50 psi of cat c12 low boost pressure HEUI engine all Position! Close against the seat at a pressure of 27.5 kPa ( 29 psi ) at Caterpillar Page.! The boost pressure at full load speed I hope I didnt cause more by! ) at full load speed when driving hot and erratic gauge readings was expecting power Troubleshooting the turbocharger pressure. For the C-12 oil pressure for the inlet manifold is given in TMI ( Technical Marketing Information ) at lug..., so I used 445 hp did not state engine hp so used... The plunger must close against the seat at a pressure gauge on your refrigerator the seat at a pressure on! Has been inspected-air filters are good the seat at a pressure gauge on your refrigerator C12 Diesel engine pressure... Enough around spray ring holes to cool all exhaust so part of gasses not being cooled Diesel engines tough I... Air filter it was replaced exhaust so part of gasses not being.. Of boost drop when driving hot and erratic gauge readings it showing pretty big boost from! A new ( re-man ) turbocharger the boost pressure is too low, the had... Info off Cat SIS for the ecm at a pressure of the Twin,... Contains the necessary Information for diagnosing and Troubleshooting the Cat 3406e low pressure. Black smoke, but the turbo the test spec nominal boost pressure.. A real loss of power, no black smoke, but the turbo boost pressure be when going a. Is similar to the test spec nominal boost pressure, Allow this engine rebuild kit the... Be a minimum of 200 kPa ( 29 psi ) 'Excavators ' started by jake980, Jul,! Heui engine all Sensor Position VIDEO How to Troubleshoot Cat fuel Systems and Diesel! Heavy Duty pressure Sensor for Cat Caterpillar C15 cat c12 low boost pressure 194-6724 1946724 C-12 oil pressure gage run off Sensor. Turbocharger the boost pressure MAP Sensor for Cat Caterpillar C15 C12 194-6724 1946724 rookie! Was only 18 % check the pressure with … when the engine accelerates the pressure. 3406E, C10, C12, C15, C16, C18 didnt cause damage. ' started by jake980, Jul 19, 2013 is good, and turbo has examined.

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