Tag Archives: bulletin

Mazda To Delay SKYACTIV-D Clean Diesel Launch In North America


Mazda Canada Inc. has announced that the launch of its SKYACTIV-D clean diesel engine in North America is being further delayed from its Spring 2014 announced debut timing.

While Mazda understands its SKYACTIV-D can meet emission regulation requirements without the use of a NOx after-treatment system, it has decided that further development is required to deliver the right balance between fuel economy and Mazda-appropriate driving performance.

Further information on the program, including a timeline of launch for North America, technical specifications and fuel economy will be available at a later date, closer to launch.

ADS News

Fuel Pump Failures Under Scrutiny

Volkswagen and Audi TDIs are under investigation for fuel pump failures. The NHTSA opened the investigation in February 2011 on the 2009 and 2010 Golf and Jetta models. The issues seem to center around contaminated fuel and the high pressure fuel pump not being capable of dealing with diesel that’s been contaminated by gasoline either by the customer or the fueling station.

ADS News

Sales of Jeep® brand vehicles rose 61.8 percent in Europe (the 27 member states of the European Union, plus the four European Free Trade Association countries) in 2011 versus 2010 – compared to an industry decline of 1.4 percent – according to numbers released by the European Automobile Manufacturers’ Association (ACEA).

Chrysler Group’s plan to sell a diesel version of its Jeep Grand Cherokee SUV in North America shows the company is heading in a different strategic direction than most of its competitors. In addition to the Grand Cherokee, Chrysler is likely to introduce diesel engines on the Jeep Wrangler, Dodge Durango and possibly other SUVs


The Association of Diesel Specialists (ADS) is the worldwide diesel industry’s leading trade association, dedicated to the highest level of service on diesel fuel injection and related systems. Members are located throughout the world and consist of independent repair shops specializing in diesel fuel injection, drive-in, governor and turbocharger service. Members also encompass original equipment manufacturer (OEM), manufacturers and distributors of replacement parts and allied equipment and schools offering programs in diesel mechanic training.

To members, ADS means worldwide recognition by diesel owners and operators and an industry support network. To member’s customers, ADS signifies a network of professionals dedicated to the achievement of high-caliber service.

IamDiesel is proud to be a member of the Association of Diesel Specialists.

News@ADS December 6, 2010

Is Succession Planning in Your Future?


One of the biggest challenges facing any organization is preparing for the future by identifying the leaders of tomorrow. If you have or have not thought about the topic, YOU NEED TO! Check out this issue of Nozzle Chatter, for ideas, tips and more.




BorgWarner has unveiled a new line of turbochargers for gas and diesel engines, specifically engineered for aftermarket performance customers, such as tuners, racers, race teams, and car and truck enthusiasts.


Audi has reported that its U.S. sales increased 37.5 percent to 9,365 units from 6,810 units sold in November during the same month last year.


The Robert Bosch plant in North Carolina will hire up to 300 workers and invest approximately $125 million in its local factory during the next five years.


Workers have been busy turning out the large diesel engines in MTU Detroit Diesel’s newly opened Aiken plant.


WABCO Holdings Inc. will supply vacuum pumps for two main diesel engine programs within the Volkswagen Group.


In a newly released global report, Hart Energy Consulting suggests diesel fuel demand will rebound and again drive global refined product demand while low sulfur diesel markets will strengthen and remain strong for the foreseeable future.


A Wisconsin company, Engineered Propulsion Systems, hopes to have a running prototype of a diesel aircraft engine by next summer after funding for the project came through last week.

News@ADS November 29, 2010

• The American Petroleum Institute reported an increase demand for ultra-low-sulfur diesel in October suggesting continued economic recovery.


A shortage of diesel in China is pushing up the premium for the fastest deliveries of oil as stockpiles in the country, the world’s biggest energy user, fell for a seventh month in October.


Exxon Mobil Corp., will build a diesel hydrotreater at its Singapore refining complex and increase its output of ultra-low-sulfur supplies by the equivalent of two percent of China’s demand for the transport fuel.


The Italian automotive company Cogema Set will invest 10 million Euros in expanding production capacity of its factory near Pitesti, Italy through the acquisition of six production lines for systems ensembles with turbocharger and boost supply injection.


The Jeep Patriot has received a mild update for the 2011 model year, but it seems European-spec models will receive one additional detail not part of the North American makeover: a new turbo-diesel I-4 offering.


Mercedes-Benz is upping the ante in the luxury compact SUV segment by offering increased fuel economy along with offering Bluetec Diesel power for 2012.


Audi plans to offer a diesel option on every one of their models in the United States by 2015. Audi currently offers diesels in two of its vehicles: the A3 TDI compact hatchback and the Q7 TDI large SUV.

Torque Wrench Maintenance and Usage Tips

Technical Bulletin

November 2010

Torque Wrench Maintenance and Usage Tips

Courtesy of Snap On Tools

A torque wrench is a precision instrument designed to apply a specific amount of force to a fastener. Whether tightening head bolts on an automobile engine, lugs for tire and rim installation or inspecting fastener tolerances on high-performance equipment, it is extremely important that proper care is used.

Guidelines are typically provided noting acceptable torque ranges, the order in which specific fasteners are tightened and the number of times a fastener must be tightened and loosened to ensure uniform torque application. Failure to properly torque fasteners can lead to equipment damage, personal injury or worse.

It is important to follow acceptable maintenance and use practices, such as:

1. Safety glasses or goggles should be worn at all times when using any hand tool.

2. Always follow the manufacturer’s directions regarding torque direction, proper force, torque pattern/sequence, use or non-use of lubrication on fasteners and torque “tighten/release” cycles.

3. Do not exceed the recommended working range of the torque wrench. Reliable measurements are based on a percentage of the working range. In general, most mechanical wrenches have a useable range from 20% to 100% of full scale. Most electronic wrenches have a useable range from 10% to 100% of full scale.

4. Do not use accessories or handle extensions unless specifically allowed by the torque wrench manufacturer.

5. Take time to inspect the tool and check for worn or cracked sockets. Properly lubricate and replace worn parts.

6. Avoid dropping or sliding a torque wrench. Dropping a torque wrench on a hard surface can cause the instrument to lose reliable calibration. If you suspect that a wrench has been dropped, have the tool inspected by the manufacturer or reputable calibration service.

7. Always store a torque wrench in a protective case and/or location when not in use.

8. Avoid exposure to temperature extremes, high humidity, fluid immersion and corrosive environments.

9. If using a click-type torque wrench, always store it at the lowest level on the scale.

10. Avoid marking, etching or placing labels on torque wrenches.

11. Use a torque wrench to apply a specific torque value during the final assembly process. Do not use a torque wrench as the primary means of tightening or loosening fasteners.

12. As most torque wrenches are length specific, always grasp the torque wrench in the center of the handle. If two hands need to be used, place one hand on top of the other.

13. Apply torque in a slow, methodical manner and avoid sudden, “jerking” movements.

14. When the wrench signals (by clicking, beeping or lights) that a specific torque has been reached, stop pulling immediately.

15. After 5,000 cycles or up to one year of use, whichever comes first, have your torque wrench inspected and recalibrated by the manufacturer or reputable calibration service.

With proper care, a high-quality torque wrench should provide accurate measurements for many years.


The Association of Diesel Specialists publishes this Technical Bulletin with the belief that all the information set forth is true and accurate, but the Association disclaims any liability to the reader or third persons for any injury or damages which result from any inaccuracies. The information is for use of ADS members. Any distribution, reproduction or sale of this material or the contents hereof without the consent of ADS is expressly prohibited.