Final Answer:
The corrected sentence is: "The friction point is the juncture where the clutch and the other parts of the engine separate."
Step-by-step explanation:
In the original sentence, there were issues with grammar and clarity. The revised sentence provides a more coherent and grammatically correct expression. It uses "juncture" instead of "point which" for a smoother flow. Additionally, the term "friction point" is retained, assuming it refers to the engagement point of a clutch where it starts to transmit power to the transmission.
Ensuring proper grammar and clear communication is crucial, especially in technical or automotive contexts, to convey information accurately and comprehensibly.