What to do after engine rebuild

Breaking in a rebuilt or performance engine is an essential step in the lifecycle of the internal combustion engine. This process, also known as engine run-in, ensures that all the components, especially moving parts like pistons and bearings, seat properly and wear evenly.

Proper break-in helps to promote longevity, maximize engine performance, and minimize the risk of early engine failures.

Patience during this phase is critical; the more carefully we treat the engine now, the better it will perform in the long run.

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During the initial miles post-rebuild, it’s important to vary the engine speed and load.

This helps the piston rings to seat properly against the cylinder walls and ensures a good seal.

Engine break-in myth

A common suggestion is to keep the engine below a certain RPM, such as 5,000, and avoid long periods at a steady speed.

It’s also advised to perform a few moderate to hard accelerations, followed by engine deceleration.

These steps contribute to creating the best possible cond

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