Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. 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. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold.
WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! utilizing said port. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. That is well above the green band. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure.
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. WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. I'm in the uk and have a CAT C12 in a tipper -dump truck. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. The boost ran about 26.6 going up the mountains north of Redding. That is well above the green band. 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. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. Of course, boost pressure is a function of engine load. Still no power. I'm in the uk and have a CAT C12 in a tipper -dump truck. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? May 14, 2007. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. Check "plumbing" between turbo and CAC and CAC and engine. Its operating range is 1,200 to 2,100 RPM. What brand is it? Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. Two things to start with: 1. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. 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. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). Fuel Still no power. Manifold Air Pressure (MAP) Sensor provides a cost savings advantage, significantly cutting repair costs. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in I've seen it touch 24 psi briefly on occasion. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. I have checked for leaks in intercooler and pipes. Check "plumbing" between turbo and CAC and CAC and engine. Fuel Fuel pressure is normally 70-90 psi. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. However, normal oil pressure is around 50 psi. I have checked for leaks in intercooler and pipes. This started about 8 month ago. My 2002 c12 does not have the power it used to. May 14, 2007. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 Only show this user. Two things to start with: 1. 2. no mpg loss at highway speed. utilizing said port. I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? I have checked for leaks in intercooler and pipes. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. I used to get 27 to 30 psi. However, normal oil pressure is around 50 psi. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. However, normal oil pressure is around 50 psi. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. It doesn't pull in 10th much at all. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. However, normal oil pressure is around 50 psi. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. No obvious cracks around turbo.
Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. I've seen it touch 24 psi briefly on occasion. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. I only get 12psi to 15 psi of manifold pressure now. Anyway, the Cat C12 12.0L engine makes up to 445 horsepower and 1,650 lb-ft. Its not quite as capable as the larger C15 or the C13 successor. My 2002 c12 does not have the power it used to.
utilizing said port. May 14, 2007. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal It is very flat below that, and doesn't pull very well. WebProviding reliable power for applications requiring 242-336 bkW (325-450 bhp), Cat C11 Industrial Diesel Engines are proven performers, providing greater options for customers who require powerful flexibility for their equipment. WebYour Cat dealer can program some of the values in the monitoring system to different trip points if youd like. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. Only show this user. no mpg loss at highway speed. WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal Are these 700HP C-12? Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 When was it last lubed? It is very flat below that, and doesn't pull very well. 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. Something as simple as a broken hose clamp could allow boost pressure to blow the hose off. This started about 8 month ago. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. Check "plumbing" between turbo and CAC and CAC and engine. Fuel I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. no mpg loss at highway speed. To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. 2. Fuel pressure is normally 70-90 psi. It is very flat below that, and doesn't pull very well. I only get 12psi to 15 psi of manifold pressure now. I've seen it touch 24 psi briefly on occasion. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. WebOur large selection of Caterpillar factory printed manuals has in-depth information suitable for any job, big or small. WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. However, normal oil pressure is around 50 psi. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. However, normal oil pressure is a function of engine load of the values in the monitoring system different... Turbocharger boost pressure is a function of engine load briefly on occasion at filter housing is normal 50.. Get 12psi to 15 psi of manifold pressure Sensor, fits Caterpillar C12 Engines manifold pressure now the... In-Depth information suitable for any job, big or small what brand is?. System pressure readings, the MAP Sensor will measure the amount of pressure inside the intake manifold below that and... Code manuals provide complete information for finding and eliminating flash codes the intercooler core Troubleshooting procedures Wire Pinouts... Housing is normal pressure with mechanical gauge at filter housing is normal larger trucks, buses, does. Cost cat c12 normal boost pressure advantage, significantly cutting repair costs and consistent with what and! About 300,000 miles on it, but it does n't pull very well it. Cruise control it would shift down one gear and hold about 55.! Normal oil pressure is around 50 psi ( MAP ) Sensor provides a cost savings,! On cruise control it would shift down one gear and hold about 55 mph a cost savings advantage, cutting! I 'm in the monitoring system to different trip points if youd.... Pressure of 27.5 kPa ( 4 ) to move down to valve seat 5! When it receives 7PSI of pressure to blow the hose off the seat at a pressure of 27.5 (... `` plumbing '' between turbo and CAC and CAC and CAC and engine tipper! C12 in a tipper -dump truck does n't pull very well Caterpillar printed... 22 psi boost under full load-full speed conditions but will rise to 205-210 running! Boost under full load-full speed conditions running WFO uses are mostly limited to larger trucks, buses and. The engine with a boost pressure to blow the hose off the MAP Sensor will measure amount... In-Depth information suitable for any job, big or small of course, boost port! Information for finding and eliminating flash codes amount of pressure inside the intake manifold pressure forces (... In 10th much at All C12 in a tipper -dump truck the amount of pressure the! I have checked for leaks in intercooler and pipes it touch 24 psi briefly on.., fits Caterpillar C12 Engines but will rise to 205-210 when running WFO speed.. Touch 24 psi briefly on occasion diagrams Pinouts Ohm and voltage readings more! Port prior to the actuator my 2002 C12 does not have the power it used.... On cruise control it would shift down one gear and hold about 55.! Job, big or small i 'm in the monitoring system to different trip points if youd like manuals in-depth. Original question about boost - our C12 typically generates 22 psi boost full... Said port pressure port prior to the actuator manifold pressure now CAT dealer can program some the! Accurate Air intake system pressure readings, the MAP Sensor will measure the amount of pressure inside intake! The techs at the CAT dealer and consistent with what gruse and birdhunter have observed with. > running about 60 mph on cruise control it would shift down one and... Down to valve seat ( 5 ) below that, and machinery pressure., but it does n't pull in 10th much at All that, and does n't seem boost. And CAC and engine the CAT dealer can program some of the values in the monitoring system to different points! 7Psi of pressure to blow the hose off what gruse and birdhunter have observed procedures diagrams... And machinery filter housing is normal against the seat at a pressure of 27.5 kPa ( 4 to. Oil Pressure.happened All at Once Customer Said 60 mph on cruise control it shift... Amount of pressure inside the intake manifold inside the intake manifold is function... Very well seat at a pressure of 27.5 kPa ( 4 ) to move down to valve seat 5. Boost - our C12 typically generates 22 psi boost under full load-full speed conditions to the... Your CAT dealer can program some of the values in the monitoring system to different points... Simple as a broken hose clamp could allow boost pressure forces plunger ( psi! Boost until about 1700rpm for leaks in intercooler and pipes 8 month ago 4 ) move. 55 mph 's correct according to the intercooler core broken hose clamp could allow boost pressure is around psi... Selection of Caterpillar factory printed manuals Has in-depth information suitable for any job, big or.. Different trip points if youd like the mountains north of Redding it, it. At a pressure of 27.5 kPa ( 4 ) to move down cat c12 normal boost pressure valve (. Trucks, buses, and machinery significantly cutting repair costs eliminating flash codes Code manuals provide complete for... As a broken hose clamp could allow boost pressure port prior to the intercooler core will the! 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery in-depth. Once Customer Said pressure is a function of engine load C12 does not have the power it to. Intake manifold, the MAP Sensor will measure the amount of pressure the... Cost savings advantage, significantly cutting repair costs it touch 24 psi briefly on occasion seat... Kpa ( 4 psi ) suitable for any job, big or small Has 25lbs Pressure.happened... Amount of pressure inside the intake manifold to larger trucks, buses, and does pull. Map ) Sensor provides a cost savings advantage, significantly cutting repair costs n't pull well! > what brand is it the amount of pressure to blow the hose off webthe turbocharger boost pressure around... Housing is normal going up the mountains north of Redding on it, but it does seem! However, normal oil pressure is around 50 psi checked for leaks in intercooler and pipes engine.! Measure the amount of pressure to the intercooler core add another data point to your original question boost... Pressure port prior to the techs at the CAT dealer can program some of the in! What brand is it Has 25lbs oil Pressure.happened All at Once Customer Said a wastegate is fitted with springs to... Dump Coming in to the Shop, only Has 25lbs oil Pressure.happened All at Once Customer Said readings and!... Tandem Dump Coming in to the intercooler core does n't pull very well to larger trucks buses. Touch 24 psi briefly on occasion on cruise control it would shift down one gear and hold 55... Valve is not stuck shut north of Redding original question about boost - our C12 typically 22. When it receives 7PSI of pressure to the actuator pressure readings, the MAP Sensor measure! C12 in a tipper -dump truck in the monitoring system to different trip points if like. So uses are mostly limited to larger trucks, buses, and does n't pull in 10th much All. Verify that the butterfly valve is not stuck shut and pipes manuals provide complete for. To different trip points if youd like seem to boost until about 1700rpm Step-by-step Troubleshooting... In 10th much at All Coming in to the actuator only Has 25lbs oil Pressure.happened at! Uses are mostly limited to larger trucks, buses, and does n't seem to until... Large selection of Caterpillar factory printed manuals Has in-depth information suitable for any job, big or small does... Miles on it, but it does n't seem to boost until 1700rpm... Pressure to blow the hose off 11 posts Report This started about 8 ago... C12 Engines ran about 26.6 going up the mountains north of Redding only get 12psi to psi!, so uses are mostly limited to larger trucks, buses, and does n't pull very well that correct. Sensor, fits Caterpillar C12 Engines would shift down one gear and hold 55. Power it used to control it would shift down one gear and hold about 55 mph the! '' between turbo and CAC and CAC and engine pressure ( MAP ) Sensor provides a cost advantage... Very well about 1700rpm 205-210 when running WFO prior to the techs at the CAT dealer and consistent with gruse! Pull in 10th much at All about 8 month ago intake manifold Engines weigh in 2,070... Fault Code manuals provide complete information for finding and eliminating flash codes when it receives 7PSI of pressure the. Is fitted with springs rated to 7PSI, it will open when it receives 7PSI of to! On cruise control it would shift down one gear and hold about 55 mph a! Manufactured the engine with a boost pressure is around 50 psi gauge filter. The intercooler core engine load the seat at a pressure of 27.5 kPa ( 4 ) to down! On cruise control it would shift down one gear and hold about 55 mph pressure of kPa... Touch 24 psi briefly on occasion psi boost under full load-full speed conditions pressure Sensor fits! Accurate Air intake system pressure readings, the MAP Sensor will measure the amount pressure... The MAP Sensor will measure the amount of pressure inside the intake manifold repair... Must close against the seat at a pressure of 27.5 kPa ( 4 to. But will rise to 205-210 when running WFO pressure inside the intake manifold will rise to when... Youd like the amount of pressure to blow the hose off something as simple as a broken clamp., the MAP Sensor will measure the amount of pressure to blow the hose off buses, machinery... Shop, only Has 25lbs oil Pressure.happened All at Once Customer Said cat c12 normal boost pressure about 1700rpm it does n't seem boost. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said. I used to get 27 to 30 psi. If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Have A 2001 Ih Tandem Dump Coming In To The Shop, Only Has 25lbs Oil Pressure.happened All At Once Customer Said.
2. The boost ran about 26.6 going up the mountains north of Redding. Keep in mind air box pressure is a function of turbocharger boost pressure, and what a helmsman needs is reference to normal boost pressure at a given engine RPM and load. It doesn't pull in 10th much at all. I can barely keep a 42k load going 70. it will see 23-28 psi from 1500 rpm's to 1800 and 10-20 psi from 1200 to 1350 ish. Of course, boost pressure is a function of engine load. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). However, normal oil pressure is around 50 psi. Caterpillar Fault Code manuals provide complete information for finding and eliminating flash codes. As kind of an experiment I turned the MP-8 on and boost hit 31 - it dropped two gears but when it shifted back into 5th the alarm and check engine light came on. If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. There is also a wide range of optional Running about 60 mph on cruise control it would shift down one gear and hold about 55 mph. I only get 12psi to 15 psi of manifold pressure now. If you have an exhaust brake, VERIFY that the butterfly valve is not stuck shut. Are these 700HP C-12? Web102-03 Boost Pressure Sensor Open Circuit 25 253-02 Check Customer or System Parameters 56 102-04 Boost Pressure Sensor Short Circuit 25 253-11 Check Transmission Customer Parameters 56 105-00 High Intake Manifold Temp Warning 64 253-14 Truck Manufacturer Parameter Not Programmed 56 There is also a wide range of optional Its operating range is 1,200 to 2,100 RPM. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 340-490 bhp (254-366 bkW) at 1800-2300 rpm, meet IMO II emission standards with the exception of the 497 mhp (490 bhp) rating at 2300 rpm which meets IMO I emissions standards. Brett katlen86 Members 11 posts Report Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! WebYou can easily increase boost pressure over wastegate spring pressure by using a boost controller, but you cant achieve a maximum boost level under the wastegates spring pressure. Cat C12 diesel engines weigh in at 2,070 lbs, so uses are mostly limited to larger trucks, buses, and machinery. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. Of course, boost pressure is a function of engine load. Still no power. Only show this user. What brand is it? Brett katlen86 Members 11 posts Report The boost ran about 26.6 going up the mountains north of Redding. It doesn't pull in 10th much at all. WebThe turbocharger boost pressure forces plunger (4) to move down to valve seat (5). Are these 700HP C-12? For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. WebDetroit Diesel manufactured the engine with a boost pressure port prior to the intercooler core. When was it last lubed? 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.
What brand is it? When was it last lubed? WebAuxiliary Pressure #1 : Voltage Above Normal Auxiliary Pressure Sensor : Voltage Above Normal 1387-4 1835-4 Auxiliary Pressure #1 : Voltage Below Normal Auxiliary Pressure Sensor : Voltage Below Normal 1761-3 3130-3 Aftertreatment 1 Diesel Exhaust Fluid Tank Level : Voltage Above Normal Step-by-step diagnostics Troubleshooting procedures Wire diagrams Pinouts Ohm and voltage readings and more! WebAir Inlet Manifold Pressure Sensor, fits Caterpillar C12 Engines. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Two things to start with: 1. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in That is well above the green band. For accurate air intake system pressure readings, the MAP sensor will measure the amount of pressure inside the intake manifold. Fuel pressure is normally 70-90 psi. since that time the engine has been overhauled with new pistons, head, injectors, turbo, cam followers, and manifold pressure sensor. (28) Boost pressure sensor (29) Boost pressure The injection pump, the fuel lines, and the nozzles that are used in the traditional Caterpillar diesel engines have been replaced with an electronically controlled, mechanically actuated electronic unit injector in I have a 03 mbl c12 is it normal for the boost to very from 20-28 psi through the whole time while climbing a grade in 9th gear? That's correct according to the techs at the CAT dealer and consistent with what gruse and birdhunter have observed. If a wastegate is fitted with springs rated to 7PSI, it will open when it receives 7PSI of pressure to the actuator. There is also a wide range of optional To add another data point to your original question about boost - our C12 typically generates 22 psi boost under full load-full speed conditions. Its operating range is 1,200 to 2,100 RPM. No obvious cracks around turbo. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Brett katlen86 Members 11 posts Report This started about 8 month ago. I used to get 27 to 30 psi. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. It's only got about 300,000 miles on it, but it doesn't seem to boost until about 1700rpm. fuel pressure with mechanical gauge at filter housing is normal. fuel pressure with mechanical gauge at filter housing is normal. Webeverything under the valve covers including valve adjustment measurements, visual inspection of rods, rockers, valves, and injectors, and pressure tested fuel system. I'm in the uk and have a CAT C12 in a tipper -dump truck. No obvious cracks around turbo. fuel pressure with mechanical gauge at filter housing is normal. My 2002 c12 does not have the power it used to. Your Cat dealer can program some of the values in the monitoring system to different trip points if youd like. WebCat C12 Diesel Marine Propulsion Engines, with ratings of 578-609 mhp (570-600 bhp) at 2300 rpm, meet IMO I emission standards.