VIDEO: Diagnosing The Oil Control Valve
Andrew Markel details a case study involving a Honda Accord whose valvetrain displayed a timing malfunction. Sponsored by ProDemand from Mitchell1.
Timing Chains In Hyundai Engines
Although Hyundai uses a single timing belt on its 2.7L V6 engines, its 3.3L, double-overhead camshaft engine is equipped with one timing chain for each camshaft and one drive chain for the oil pump. At first glance, a timing chain design allows engineers to shorten the overall length of the engine and reduce rotating friction.
Misfires In The Crankshaft And Camshaft
Any time you’re dealing with a combustion engine, there’s a chance it will develop a misfire. A better understanding of how computer systems analyze a misfire can make your job that much easier as the service tech.
GM LS V8 VVT System: Oil Flow And Pressure
The CMP actuator system controls the amount of intake and exhaust valve overlap. The engine control module (ECM) can only command the CMP actuator to advance the valve timing from the park position or retard the valve timing back to the park position.
Dorman Adds Exclusive New OE FIX Camshaft Phaser To Its VVT Solutions Program
Dorman’s patented new OE FIX for this camshaft phaser, part number 917-250XD, offers customers a completely re-engineered alternative, solving original design flaws in the highly failure-prone original unit, according to the company.
Variable Camshaft Timing And Back Pressure Issues
The variable “valve” timing that most of us see in our shops is actually variable “camshaft” timing that improves low- and high-speed torque by advancing or retarding the camshaft timing on single overhead camshaft (SOHC) engine applications.
Oil-Related Engine Codes for VVT Engines
Variable valve timing is becoming a standard system on most late-model engines because it offers higher performance from a smaller displacement engine at higher rpms. Oil plays a larger role in VVT systems. They need engine oil not only for lubrication, but also to actuate the camshafts to change the profile of the lobes. Oil
