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Honda Civic Crankshafts and Parts

The crankshaft of your Honda Civic auto is one of the essential parts of the vehicles engine. A quality crankshaft will ensure precision, power, and efficiency in your Civic. To choose the right Honda Civic crankshafts and parts for your Honda, you need to know how these parts work and what types there are.

How do crankshafts work?

Crankshafts connect the pistons in a Civics engine, joining together by parts called rod journals. The pistons are positioned in such a way that at any one time half of the pistons will be pressed upward and the other half will be pulled down by the crankshaft. The pistons move causing the crankshaft to turn, and in response, the crankshaft pushes and pulls the pistons. The crankshaft is also connected to a device called the camshaft. A belt runs between the crankshaft and the camshaft, and as the crankshaft turns the valves of the camshaft, it releases air and fuel into the piston chambers.

As a piston is pulled down by the crankshaft, its chamber is filled with the fuel mixture. The piston is then pushed up by the crankshaft, compressing the air and fuel. A spark plug emits a spark, which causes the compressed air and fuel to combust. The force generated by the combustion pushes the piston back down, reopening the piston chamber and turning the crankshaft. The piston is once again pushed up, this time forcing all the exhaust created by the combustion to be pushed out of an exhaust valve.

What types of crankshafts are there?

The main differences in crankshafts are the methods used to make them. Here are the types of crankshafts you should consider for your Honda Civic.

  • Cast: This type of crankshaft is made using a sand mold. Molten iron is poured into the mold and allowed to cool. Each cast mold makes one half of a crankshaft. Once the iron is cooled, the parts are removed and welded together to create a complete crankshaft.
  • Forged: This type of crankshaft is made as a single solid piece and is found on updated model cars. First, a beam of iron is heated to the point of malleability. Next, a mold is enclosed around the hot beam, forming it into the desired shape. The mold is removed and any excess bits of metal are manually shaved off, leaving one solid piece or crankshaft.