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Tech Feature: Diagnosing Automotive Lab Scope Dilemmas
Although digital storage oscilloscopes or "lab scopes" have now become standard equipment for most modern automotive repair shops, they still possess a mystique that tends to intimidate many technicians. Right off the top, a lab scope is basically a voltmeter that displays voltage signals along a time base. The vertical scale measures the amplitude or amount of the voltage and the horizontal scale... More
Tech Update: Gaskets, Seals, Sealants and Fasteners
Some gaskets can go the distance, while others can not. The factors that typically cause a gasket to fail include age, heat, thermal expansion, abrasion, pressure, vibration, corrosion, material breakdown or poor design. More
Tech Tip: 1987-93 Jeep 4.0L: Head Gasket Leaks/Seepage Found in Engines
Some vehicles equipped with a 4.0L engine, may experience engine oil leaks/seepage from the head gasket along the right-hand side (tappet rail) of the engine. More
Tech Feature: Taking it to the Streets
We have all seen in our industry that a "streetable" racing engine or a "raceable" street engine appeals to a broad spectrum of potential engine buyers because of its flexibility. Yet, everyday street driving is not the same thing as serious drag racing. More
Tech Tip: Honda's V6 Engine Leaks Oil from Front/Middle/Rear
If oil is leaking from the front, middle or rear of one of the above engines, it may be due to the cast aluminum engine block may be porous in spots. Depending on the location of the leak, seal it with JB Weld or 3-Bond-coated sealing bolts. More
Tech Feature: The Variables of Valve Timing
Today's cylinder deactivation designs are used to reduce the fuel consumption and emissions of an internal combustion engine during light load operation. More
Tech Feature: Cylinder Head Gasket Service Essentials
Cylinder head gasket design has become more sophisticated than in years past. Critical steps must be taken during the repair process to ensure ­customer satisfaction and avoid time-consuming­ ­comebacks. More
When Parts Collide: Volkswagen and Audi Engine Repairs
In the early 1970s, VW/Audi designed a small, efficient and reliable engine that was easy to work on and made use of the then fairly new technology of a rubber timing belt without the possibility of damage if it failed. This two-valve-per-cylinder engine produced excellent power and economy, and really set the standard that many other manufacturers couldn't match. More
Internal Engine Repairs: Uncovering the Culprits That Cause Head Gaskets To Fail
The first symptoms of a failing head gasket are usually a slow loss of coolant with no visible leaks, engine overheating and/or a check engine light with cylinder misfire codes. Uncover the culprits and prevent comebacks by following repair procedures to the letter. More
Tech Feature: The Subaru Boxer Engine: A Balance of Power
According to their engineers, these high-powered engines are ideal for all-wheel-drive applications used in Subaru vehicles because they are inherently compact - short and low. More
 
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