Timing chains are being discussed. Technician A says that timing chains can be checked by measuring chain deflection. Technician B says that rotating the crankshaft without camshaft movement while the engine is still together can indicate the amount of wear. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Both technicians are correct. Technician A is correct in stating that timing chain deflection can be used to check for wear, as excessive deflection indicates a worn chain. Technician B is correct in stating that rotating the crankshaft without camshaft movement can indicate wear, as this would show slack or play in the timing chain, indicating it has stretched or is worn.

Timing Chains Are Being Discussed