Anyone who works for a living to support themselves and their family, pays their taxes and abides by the law hates a thief. Low-life criminals who take advantage of honest folks are the scum of the earth.
Is the coil good or bad? During the recent Automotive Aftermarket Parts Expo (AAPEX) Show in Las Vegas, Innova debuted its 4400 Coil and Control Module Tester, a counter-top diagnostic unit ideal for both shops and parts stores. The bench-top tester is designed to safely and easily test the circuitry of conventional ignition coils, coil-on-plug coils (COP), distributorless ignition systems (DIS) and electronic ignition modules (EIM).
Sealing an engine involves several concerns, including the containment of combustion pressure, preventing coolant and oil from entering the combustion process, and preventing oil, coolant and vacuum from leaking out of the engine. Theoretically this should be a straightforward process, but if performed incorrectly without attention to detail, problems can range from annoying leaks to devastating internal engine damage.
Your shop may service just about anything under the sun, or you may specialize in specific types of service or certain vehicle makes. Regardless of your shop’s capabilities, there may be times when you need to farm out work to an outside vendor. A good example is engine repair or rebuilding.
This review covers Mac Tools’ 1/4-inch drive digital torque wrench, model TWM265IDA. Three additional digital torque wrenches are also available, all with torque value selections in in.-lbs., ft.-lbs., Nm and kg.cm.
A customer’s engine represents a major investment. Regardless of whether the engine is new (a factory replacement engine), a freshly rebuilt engine, or an engine that has been stored for an extended period, it can be quickly damaged if the bearings and friction related components are not properly lubricated prior to firing the engine for the first time.
Whenever you’re faced with dirty or slightly burred female threads (cylinder head threaded holes in a block, spark plug holes in a head, etc.), you may be tempted to grab an appropriate size cutting tap to clean up the threads. The correct choice is to use a “chaser” tap. A cutting tap is designed to create new threads, whereas a chaser tap is designed to clean, re-form and restore existing threads.
When servicing or rebuilding a GM LS engine (which includes the LQ series), cast iron or aluminum blocks, be aware that there are two versions of cylinder head bolts, based on the design of the specific block.
In a recent editorial, I commented about the validity of extended oil change intervals that are commonly promoted today by auto makers (ASP September/October 2014 issue). My intent was to provide my own opinion, and not to promote the increased sale of oil (read the editorial in our digital edition on www.autoserviceprofessional.com). This topic has obviously hit a nerve among our readers. Following are just a few of the letters we’ve received regarding this subject.- Ed.
Since it seems as though just about everyone these days has a “smart” phone glued to their head or stashed in their pocket 24 hours a day, we may as well take advantage of the camera feature of these phones while inspecting, diagnosing and repairing customer vehicles.
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