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Ej20 engine valve adjustment
Ej20 engine valve adjustment









Genuine OEM Subaru parts are truly high quality parts. If something is aftermarket, then it has been manufactured or modified by a factory or shop other than Subaru.

ej20 engine valve adjustment

These terms describe the parts that were installed on/in your car from the factory. If your car came new from the dealership, then it 100% stock or OEM (Original Equipment Manufacturer). Here at Crawford you will only ever hear proven facts, and the information that will allow you to make your own educated decision on what you do under your hood.įirst we’ll get in to the terms (in bold) and their meanings and how they relate to the products you are buying, so as you read this article or any others on the inter-webs, you’ll have a much better grasp on what you’re looking at. The process, as detailed in this article, is simple enough and could mean the difference between a happy motor and a sad wallet.You’ll notice in the title of this blog, we say everything you need to know versus what we want you to hear, or what our opinion is. As for the engine itself, the short block needs to be finish-assembled, you’ll need the cylinder heads, head gaskets, and the camshaft/valvetrain that will be used. In order to check clearance, you will need Play Doh, or similar modeling clay, an inexpensive dial caliper and a pair of solid lifters. The shortest route to disaster is assuming everything is OK. Checking this all-important clearance is not difficult and can pay huge dividends in durability. For these reasons, it’s imperative to check piston-to-valve clearance whenever an engine is built, or either the cylinder heads or valvetrain are changed. Piston-to-valve clearance criticality is exacerbated by high-compression pistons, large-duration cams, and high rpm. Nobody wants to pick chunks of steel and aluminum out of an oil pan. At a maximum, it necessitates a complete engine rebuild. Too little space and they collide an occurrence which results in carnage that, at the minimum, requires replacing the valve(s), guide(s), and piston(s). The relationship between the valves and the pistons is a precarious one.

ej20 engine valve adjustment

Proper piston-to-valve clearance is the difference between a winning-engine and an expensive pile of scrap metal Here's how to check clearance using clay.











Ej20 engine valve adjustment