Quote:
Originally Posted by stitchbad
yup if you look in the port you can see bubbles
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I speak from experience when I tell you that they leak small amounts from the factory. The factory doesn't lap the valves and they leak a bit until they are run.
We lap our valves all the time, but it isn't always necessary.
However, if you have the engine out of the car, feel free to pull it apart and lap everything.