Sheared Crankshaft Sprocket Keys Found on Some GM 6.2L Diesel Engines
A new hardened washer, p/n 23504011, is availalbe for improved clampload of the crankshaft sprocket to the crankshaft by the crankshaftbolt. Installation torques for the hardened washer have been increasedto 177 to 185 ft.lbs. (240 N.m /250 N.m). Parts are currently available from GM and other suppliers should damperloosening occur, resulting in the crankshaft sprocket
Diesel Engines: Dino Fuel or Bio Fuel?
Though they lately seem to be going the other way, with rising fuel prices, consumers are constantly looking for inventive ways to cut fuel costs and consumption. That’s the American spirit: we love to look for ways to beat the system. There is nothing wrong with this attitude, because this is where inventive minds
Oil Cooler Leak on GM 6.6L Diesel Engines
The oil leak is caused by minorimperfections in the engine block machine surfaces at the oil coolerinterface that may allow engine oil seepage past the oil coolerO-rings. To cure this problem, GM offers the following information: 1.Inspect for other oil leaks that may be perceived as an oil coolerleak. An oil leak from one of
Diesel Engine Glow Plugs: Not Just For Starting Anymore
Since diesel engines ignite by using the heat of combustion, they usually need help when the climate changes to the cold of winter. Veteran owners of “old school” diesel engines understand what I’m talking about when I mention the “one-minute of silence.” This was the time every morning when you would turn the ignition switch
Causes of Melted Piston Top and Ring Land on Diesel Engines
Signs of melted piston or ring land damage include: • Erosion at the piston crown is visible. • Melted areas can be seen at the piston crown (Fig. 1) – right up to a completely melted off top of the piston (Fig. 2). • In extreme cases, there are seizure marks all along and around
Diesel Engine Oils: Today and Tomorrow
Why are diesel engine oils different than any other engine oils? The Lubrizol Corporation, the world’s largest oil chemistry supplier, just created an excellent website (www.hddeo.com) that explains diesel engine oil composition very well. Diesel fuel combustion (or incomplete combustion) is accompanied by the production of soot (unburned carbon). Prior to exhaust emissions legislation this
How to Time a Perkins Diesel Engine
Removal: First, before removing the injection pump make sure you can still see the scribe mark that Perkins put on the engine block. This can be found on the engine block just under the injection pump flange. Having a hard time finding this mark? Locate the other scribe mark on the ear of the injection
What is Acceptable Oil Consumption in Diesel Engines?
All engines will consume some amount of oil, and as an engine ages and wears we generally accept increases in consumption, but in low mileage or low hour engines oil consumption can be frustrating. Letting an engine with truly high oil consumption go unchecked can result in shortened engine life and/or engine failures. External
Diagnosing Oil Leak on Ford’s 7.3L Super Duty Truck Diesel Engine
Some 1998-2003 E-Series, 1999-2003 Super Duty, 2000-’03 Excursion and2000-’03 F-650/750 vehicles equipped with a 7.3L diesel engine mayexhibit an oil leak at the high-pressure oil pump outlet fittingsand/or end plug. Accordingto Ford, this type of leak may appear to be a rear main crankshaftseal, oil pan gasket or other engine oil leak due to the
Selecting Valve Seats for Gas and Diesel Engines
Hard working diesel engines, performance engines, and engines that run on dry fuels such as propane or natural gas produce a lot of heat in the combustion chamber and often require valve seats that are harder and more heat-resistant. Stellite, chromium, cobalt, tungsten and nickel alloy valve seats are commonly used for such high heat
JAC and Navistar to Produce and Market Commercial Trucks and Diesel Engines in China
Anaffiliate of Navistar International Corp. and Anhui JianghuaiAutomobile Co. Ltd. (JAC) have signed a joint venture agreement todevelop, build and market advanced diesel commercial engines in China. In addition, an affiliate of NC2, a joint venture between Navistar andCaterpillar Inc., have also signed a joint venture agreement with JACto develop, build and market advanced commercial
Diesel Engine Seminars Highlight 2010 BIG R Show
The Automotive Parts Remanufacturers Association (APRA) and their co-sponsor for the event, ENGINE BUILDER magazine, are proud to offer a technical track for the diesel engine market. “Today’s engine builders continue to look for ways to expand and improve their businesses,” says Dave Wooldridge, publisher of ENGINE BUILDER magazine. “The technical seminars we are hosting
Cackling or Knocking Noise Complaints on Ford 7.3L Diesel Engine
This noise may sound like a rod knock, but it is intermittent and it increases in intensity as the engine warms up to operating temperature. The "cackie" noise may by caused by pressure variation within the fuel rail and in virtually all instances is attributed to cylinder #8 (driver side rear). The "cackle" noise does
JASPER Offers Late-Model Cummins ISB 6.7L Complete Diesel Engine
Jasper Engines & Transmissions now has the late-model Cummins ISB6.7 liter Common Rail Front Gear Train Complete engine for sale. This JASPER remanufactured engine is currently available for the2007-2010 Dodge 2500, 3500, 4500 and 5500 series trucks and the 2008Sterling Bullet truck. "We are breaking away from our traditional Complete Cummins format forthis application and
Understanding Port Swirl In Diesel Engines
What is port swirl? Actually this is a little contradictive. The port doesn’t actually swirl, it is the design of the port that causes air to swirl! Swirl is what is taking place when the intake charge exits the intake valve and enters the combustion chamber. As the air enters the combustion chamber and the
Cummins Inc. Agrees to Pay $2.1 Million Penalty for Diesel Engine Clean Air Act Violations
TheU.S. Department of Justice and U.S. Environmental Protection Agency(EPA) announced today that Cummins Inc. will pay a $2.1 million penaltyand recall 405 engines under a settlement agreement resolving allegedviolations of the Clean Air Act. According to a complaint filed simultaneously with the settlement infederal court in the District of Columbia, between 1998 and 2006Cummins shipped
R. L. Polk & Co. Forecasts Market Demand for Diesel Engine Parts Replacement
With the age of the commercial fleet of class 3-8 vehicles increasingand probability of a further increase in the cost of new commercialvehicles as a result of increased regulations on diesel engineemissions in 2010, R. L. Polk & Co. has just announced initial keyfindings of its new Diesel Engine Parts Replacement analysis, whichprovides valuable information
60 Series Detroit Diesel Engines
The Series 60 engine is an in-line 6 cylinder, with wet replaceable liners, overhead cam and electronic engine control. These engines are mostly used in class 8 trucks, but can also be found in industrial and generator applications as well as occasional marine applications. The Series 60 DDC diesel engine comes in 14.0L, 12.7L &
Engine Builder Magazine to Co-sponsor HD Diesel Engine Program and Exhibit at BIG R Show
TheAutomotive Parts Remanufacturers Association (APRA) and its Heavy DutyRemanufacturing Group (HDRG) have announced the addition of Engine BuilderMagazine as a co-sponsor of the HD Diesel Engine Program and ExhibitSection of the Big R Show. APRA’s BIG R Show will be co-located withthe ATRA Powertrain Expo at The Riviera Hotel in Las Vegas on November1-2, just
Approximate Progression Of Cylinder Liner Finish On Detroit Diesel Engines
The following is a very approximate progression of the various finishes that have been used on Detroit Diesel 2-cycle engines over the years by a variety of manufacturers, and our opinion of the results. There are other factors and measurements other than RA finish; this is intended only as a comparison of the thinking through