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True or False | 6 quizzes on kart engines

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CLEANING
RUNNING-IN
RELIABILITY
6 QUIZZES
ON KART ENGINES
START
CARBURETION
HEATING
MAINTENANCE
SHOULD THE ENGINE EXHAUST MANIFOLD BE CLEANED WITH SAND PAPER?
Answer
Michele Zampieri
A driver and mechanic with twenty years’ experience, now the technical director of CKR.
Next question
WELL DONE!

The flow of exhaust gases mixed with oil from the engine to the exhaust form deposits on the exhaust manifold. If the width of the exhaust hole decreases because it gets dirty, this will worsen performance. This is why the exhaust manifold must be cleaned every two/three days on a track. Sandpaper should not be used to do this because there is a risk of changing the internal dimensions of the manifold, which in some classes are defined by the technical regulations. An abrasive sponge must be used, which will lengthen cleaning time but will avoid removing material from the exhaust manifold.

WRONG!

The flow of exhaust gases mixed with oil from the engine to the exhaust form deposits on the exhaust manifold. If the width of the exhaust hole decreases because it gets dirty, this will worsen performance. This is why the exhaust manifold must be cleaned every two/three days on a track. Sandpaper should not be used to do this because there is a risk of changing the internal dimensions of the manifold, which in some classes are defined by the technical regulations. An abrasive sponge must be used, which will lengthen cleaning time but will avoid removing material from the exhaust manifold.

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