Cylinder head intake expansion

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If the inside diameter of the intake manifold is expanded, an air intake of a cylinder head will also process expansion.

It’s cutting the according to the inside diameter of the intake manifold.

It is necessary to take off a cylinder head to finish it carefully.

But the person who doesn’t have a skill to there and a confidence

While covering the inside of an air intake with a waste and cotton,

Drill excavation is also fine while inhaling by a cleaner.

IMG_0558  IMG_0561

Roughly drilling in the state from which the above picture doesn’t remove a cylinder head.

Because I wanted to know the optimum inner diameter, it was processed without removing the cylinder head in order to repeat the test drive to expand a little.

Inner diameter Remove the cylinder head after the decision, it was clean finish.

The effect of the inner diameter expansion Intake manifold is here

Change a carburetor and a throttle body for a larg...
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Cylinder head can be easily processed because the aluminum alloy is often


Finish a little tapered,

It’ll be the limit to here for work in the state from which a cylinder head isn’t removed.

Remove the shavings from removing the After the processing is finished cloth,

It’s blown beautifully by air blow dry and it’s washed by kerosene and a cleaner of parts, etc..

The piston and cylinder and shavings remained remains to engine start-up will be scratched

Please start the engine after carefully cleaning.

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