Talk:Hydraulic lifters
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The following has been moved from the article to here:
This is incorrect as most light vehicle engines in the last 10 years have been made in a Type II configuaration where an overhead cam actuates a Rocker Arm that in turn actuates a valve with the opposite rocker side of the rocker arm being supported by the Hyrdraulic lash adjuster element. Major produces of lash adjusters in the USA include Eaton, Delphi and INA, while of the three INA has the best explanations and models on their web site. Hydraulic lifters were first put into engines, in mass production, in the 1950's by General Motors. Since then Hyrdraulic Lifters have always been a mainstay in domestic engines. In other parts of the world where smaller engines are utilized the tendency was to stick with direct acting tappets however, again, in the past five to ten years the trend is changing towards hydraulic lifters (especially with Toyota). Only Ford is now considerding reverting back to the primitive Type I, direct acting technology but this is because they are desperate to take cost out of their engines in an ill fated attempt to regain profitability; their quality will suffer and consequently so will their market share.
To truly do justification to the history of the Hydraulic Lifter a person could write a 100 page technical paper easily. The person who wrote the above doesn't have accurate information about the topic and should not be allowed to write any more articles. Thanks.
I am an Engineer who works for one of the aforementioned producers and have been working in the design and production of Hyrdraulic Lifters for the past 15 years. It bothers me to see such inaccurate information on Wikipedia, an informaiton source that is becoming highly used by any and everybody.