The reason I ask is that it is time to replace the original cat c12 turbo, and I'm look … I try to do mine yearly or at 10K miles whichever comes first. As the boost pressure increases against the diaphragm in canister (2), the wastegate valve is opened and the rpm of the turbocharger is limited by bypassing a portion of the exhaust gases past the turbine wheel of the turbocharger. When the calculated engine exhaust gas temperature … Login with username, password and session length. i have a 1998 475 cat, it will not boost over 10 pounds until it get to 1450 rpms, ... hello i have a cat c12 engine in a 2000 international and my turbo seems to have low pressure under a heavy load it will only show about 14 pounds while climbing a hill and the power is sluggish when … read more. This is the complete list of Caterpillar fault codes. Plus the heat exchanger, fuel cooler, trans cooler cleaning. Vern, may I suggest before going to a great deal of cost on your engine. Designed to … One thing about Cat engine oil pressure it run very low and the build of all Cat engines the oil system is flooded with If a High Boost Pressure Event occurs, the wastegate is closing properly. The correct oil pressure for this engine is high side 47.7 psi and the low side is 13.6 psi. Thanks for the info. Cat Engine Expert. Jan 1, 2008 Eau Claire, WI 0. At idle or low RPM's the fuel pressure is around 70-75. Customer complains that truck goes into limp mo … read more. I have 2008 c12 acerts rated at 705hp Do your homework on the salt water cooling system, the after cooler cores have a 6 year life and will run your 3k+ each. Perform a torque converter stall test. The amount of boost relative to engine speed and load depends upon the application, with the specification given for 28.8 in./Hg dry barometric pressure, 77°F (25°C) ambient temperature, and 35 API gravity fuel. If a Cat Diesel Engine doesn't have good fuel pressure it can cause a lot of performance related issues. At high RPM's the fuel pressure is around 85-90 psi. we had a low boost code before we changed the turbo. ATD exhaust gas temperature 2 voltage below normal: 332: 3: aftertreatment fuel pressure control: aftertreatment fuel pressure sensor voltage above normal: 332: 4: aftertreatment fuel pressure control: aftertreatment fuel pressure sensor voltage below normal: 332: 11: aftertreatment fuel pressure control: aftertreatment fuel presuure high: 333: 5 Sensors for Cat® Equipment including Pressure, Temperature, Fuel Level, Speed, Position, and Oxygen. Cat Man. The plunger must close against the seat at a pressure of 27.5 kPa (4 psi). Barometric Pressure : Voltage Below Normal Atmospheric Pressure Sensor : Voltage Below Normal CAT C13, C15, and C18 Tier 4 Final Engine Fault Codes N/A N/A N/A N/A N/A N/A N/A 80-1275 Page 1 of 14 Rev: 03/2019. http://prevostcommunity.com/PDF/Motor%20Home%20Fuel%20economy.pdf, Quote from: Dave Atherton on April 16, 2015, 04:57:55 AM. 53 18. but now the code is gone and has not reappeared. wrote regarding boost gauges on electronic Cats: >Sort of seems as useful as a pressure gauge on your refrigerator. Cat c12 2ks 2002 turbo options. CAT's data indicates for a C12, actual permissible mileage between oil changes is based on a number of factors including fuel consumption, type of service duty, vehicle weight, oil sump size and idle time%. The ECM calculates the engine exhaust gas temperature, by using the readings of the Inlet Manifold Temperature Sensor and the Atmospheric Pressure Sensor (along with a rpm factor). The only way you get max HP is with the cruise engaged. Vern I posted a few comments about a month ago re the C13 -525, A stock c13-525 in the 06 Thunder I'm sure the Marquis is similar is 525 hp and 1600 ftlbs of torque in reality your engine to the rear wheel on a dyno is 400hp and 1200 ftlbs of torque, now I have done two steps to increase my hp and especially the torque the first step was the exhaust and air filter changed the stock exhaust from 4" to 5" and air filter to a K&N Diesel air filter paper style which you can wash and my HP rating went to 450hp and the torque was 1390 a nice gain but still not enough power as my Coach and yours is heavy so I did step # 2 and did an ecm tune on the engine computer and you would not believe the results. Cat® 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. CAT's data indicates for a C12, actual permissible mileage between oil changes is based on a number of factors including fuel consumption, type of service duty, vehicle weight, oil sump size and idle time%. Vocational, Technical or Trade Scho. Cat Man. Good luck Around 1500 or below around 35. The big cats can be expensive quick if the maintainence is neglected. Use Cat ET to override the wastegate to 0 percent. Boost pressure. The fuel pressure range o the C12 engine is 70 to 90 psi. Did not state engine hp so I used 445 hp. If the air is denser, that is, if barometric pressure is higher and/or temperature lower, boost pressure will be higher than specified. I did mention. The fuel check pressure seems like a great idea. Vocational, Technical or Trade Scho. I echo that sentiment - we have some Series 60 Detroits in highway tractors that won't even let you use all the HP on the footfeed. Normal coolant temp is 185-190 but will rise to 205-210 when running WFO. All Cat Diesel Truck engines have Fuel Transfer Pumps, it is good idea to know how they work and how to change them. Our large selection of Caterpillar manuals has in-depth information suitable for any job, big or small. Customer reply replied 6 years ago. The C12.9 marine propulsion engine is ideal for high performance marine applications including yachts, fishing vessels, military vessels, governmental vessels and various other high performance marine applications. Hi, have info off Cat SIS for the C-12 oil pressure. Vern, what you just mentioned about engine slow response at start than has power. Your Cat dealer can program some of the values in the monitoring system to different trip points if you´d like. I have a 475hp MXS. Page 1 of 2 1 2 Next > Apr 27, 2013 #1. ingedavi Light Load Member. I have a C7 cat [kal85083] with a code 102-3 boost pressure high[25].I used a lap top with cat soft ware to retrieve this code.It is not an active code. The Cat ® C18 Industrial Diesel Engine is offered in ratings ranging from 429-522 bkW (575-700 bhp)@ 1800-1900 rpm. This video discusses the design, history, and problems with the Cat C12 and C10 engines. You may >have about as much control. Fuel pressure is normally 70-90 psi. Ask Your Own Medium and Heavy Trucks Question. Looking for more information? It sounds like low, Jerry, here is some info. Exhaust Gas Temperature Derate often occurs if these Cat bridge engines are put under prolong heavy loads and/or climbing steep grades. I am happy to assist. For a C12 with normal duty getting 6-7 mpg, weighing <=80K lbs, idle time of 20%, and an oil sump of >= 36 qt, the max interval is 20K miles. Get a closer look at the Cat® C12.9 high performance engine as Hashim Marzuq from Caterpillar Marine Group discusses key features and benefits in this walkaround. 10,221 satisfied customers. An indication of a problem with the wastegate turbocharger is: * boost pressure is too high at full load conditions. For a C12 with normal duty getting 6-7 mpg, weighing <=80K lbs, idle time of 20%, and an oil sump of >= 36 qt, the max interval is 20K miles. It goes up hills fine when going starts above 40 milesper hour. C15 ACERT MXS Cat boost pressure, no load. Are these 700HP C-12? Please reply back if you need more help or have more questions. Of course, boost pressure is a function of engine load. Here is something else to think about – the older 425-B Cat engine, which was mechanical, had aluminum pistons, did not smoke on cold start-ups, achieved good fuel mileage, made great power, started easily, had long engine life, and only had one wire going to the engine to run it, produced 19.3 horsepower per pound of turbo boost! The turbocharger boost pressure forces plunger (4) to move down to valve seat (5). I use a visible boost gauge, can I use a Borg-Warner turbo without a waste gate. When going downhill, coasting in gear at 1200 rpm I'm having a boost reading of 5 psi and the gauge will twitch one time. Caterpillar Engine Expert. Check Cat ET for the following logged Diagnostic Codes 190-02 and 190-08. Normally when it should and doesnt, the ECM will turn on the check engine light and set a boost not responding code. Added weight and the low side is 13.6 psi pressure seems like a great deal of on. Can cause a lot of performance related issues RPM 's the fuel pressure is too high full. Two items or if it is just the added weight the Cat and! You just mentioned about engine slow response at start than has power of engine load light and a... Wi 0 our large selection of Caterpillar manuals has in-depth information suitable for any job, big or small,. Get max hp is with the cruise engaged is gone and has not reappeared added.! 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