Many model years were crossover or transitional years for the Duramax diesel, thus it is often necessary to decipher the engine model/version using the vehicle's VIN number. Two more years would pass before Cummins-equipped trucks were upgraded to common-rail injection, and it was another few months after that before Ford joined the higher-pressure party with its HEUI 6.0L Power Stroke engine. Upon joining forces with Japanese engine manufacturer, Isuzu, the Duramax was born—and it delivered. The first production Duramax diesel engine was test-fired on July 17th, 2000 on an engine dyno at the DMAX Ltd. production facility in Moraine, Ohio. The initial engine was produced in Moraine, Ohio, on July 17, 2000. Each block was then treated to a boring process to ensure the cylinders were perfectly round and squared to the deck surfaces.
All rights reserved. If the tip breaks off, you … Connecting Rods When leaned on, this OEM turbo can support 500rwhp—but anytime extra horsepower is added to the equation in conjunction with a disabled wastegate, the charger is prone to overspeeding. This entailed CNC machining the heads to accept valves, head bolts and injector hold-downs. Explore Our Forums. LMM Duramax Engine (2011+) Out in the real-world, it went about its work quietly and efficiently, with many ¾-ton Chevy and GMC HD owners reporting fuel economy numbers as high as 22 mpg on the highway. Crankshafts The upper two inches of the cylinder bores were induction hardened to resist cylinder wall wear from piston ring travel. Engine - Short Block Turbochargers Each cylinder head makes use of two forged-steel rocker arms per set of intake and exhaust valves, with each rocker arm using a guideless bridge to operate two valves.

head gasket life) and as has previously been mentioned, the heads attach to the block by way of six head per cylinder (18 per head). Age: 29 Posts: 8,749 Likes … The new design also affords the opportunity for the Duramax Diesel 6600 to surpass required engine emissions standards. >Oil Pans The inaugural Duramax, RPO code LB7, would bring the first aluminum cylinder heads to the diesel pickup segment, introduce the same market to common-rail injection and also make its power in a much cleaner, quieter manner than the competition (i.e. The new company built a brand new 650,000 square foot engine plant in Moraine, Ohio and adopted the name DMAX Ltd. Although Isuzu had been planning a 2003 release date for the new engine, the partnership with GM resulted in cooperative, fast-track development between the two companies which resulted in the introduction of the new engine in GM's 2001 model Chevrolet and GMC HD Diesel trucks. The pressurized fuel leaving the CP3 is stored in the fuel rails until it’s required by the injectors. Transmissions For ultimate combustion sealing (i.e. Long-term durability is enhanced with the rocker arm’s point of contact at the bridge entailing a sintered iron tip and the bridge featuring a hardened steel cap. The LMM Duramax refers to Chevrolet Silverado HD and GM Sierra HD trucks equipped with the 6.6L Duramax diesel engine between the years of 2007.5-2010. The LB7’s approximate engine dimensions check in at 30 inches (length) by 30 inches (width) by 32 inches (height), whereas the 7.3L Power Stroke (GM’s direct competitor at the time) measured 34x32x38. Sensors

The Detroit Diesel Engine that GM offered in its trucks was deemed inferior by consumers, so they took their business elsewhere. Until the introduction of the Duramax, GM relied on the all-iron, IDI 6.5L GM V-8, which produced a decent 215 hp and 440 lb-ft of torque in its most powerful configuration.

A ring carrier was also integrated into the piston’s top ring groove during the casting process. The Duramax Diesel 6600 continues to evolve, and, yes, each new iteration yields improvements in emissions, power, and torque. For a decade now, the Duramax Diesel 6600 has proven that it is a force to be reckoned with in the Heavy Duty Diesel Pick-Up Truck genre. LML Duramax trucks added 30 horsepower and 100 lb-ft of torque over the LMM. The new design also affords the opportunity for the Duramax Diesel 6600 to surpass required engine emissions standards. Copyright date() Duramax-Engines.com.

Additionally, the Duramax Diesel 6600 was an instrumental contributor to the 2001 Chevrolet Silverado Heavy Duty Pick-Up Truck as it received the prestigious “2001 Truck of the Year Award” by Motor Trend Magazine. Injector Pumps Clutches Engine - Long Block Stay tuned for Part 2, where we’ll explore the second-generation Duramax, the LLY version, from top to bottom. Driving Line® Accelerating Automotive Passion™ by providing a fresh angle of what fuels us. The LML Duramax engine is actually the longest used Duramax engine in the segment so far, as it was used between … At the same time Isuzu Motors was in the process of developing a totally new diesel engine. It was very similar to the LBZ, but it featured an all-new emissions device, a diesel particulate filter. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves. LB7 Duramax Engine (2001-2004) The rod bearings received oil lubrication thanks to oil passages that run from each journal to the connecting rod pin. In instances where leaking occurs, it’s due to erosion and/or wear of the non-hardened internal ball seat, which is no longer able to fully seal the injector. Starters Bearings Engine - Complete/Crate Forged from 4340, the LB7’s crankshaft was machined, balanced and treated to the Tufftride process to increase fatigue strength. Isuzu accomplished all of the main engine design, but General Motors was responsible for the electronic fuel injection design which provided maximum power for every drop of fuel used. Glow Plugs Cylinder Heads Recognizing that every individual's motoring journey is unique, we seek to give form to both untold as well as celebrated facets of the automotive world. Upon joining forces with Japanese engine manufacturer, Isuzu, the Duramax was born—and it delivered. While it reduced emissions output drastically, the DPF system on the LMM resulted in these trucks having terrible fuel economy.

It wasn’t until the ’08 model year that Ford came to market with a true high-pressure common-rail—in the form of the 6.4L Power Stroke.

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