how to adjust the timing chain of OPTRA Model
Speak to dealer service department.
Optra is using timimg belt not chain. Anyway both is self adjust, no adjustment needed.
my Chevrolet Optra has a top problem and since that it seems as if not on timing and the air-Cond and heater is not working the Performance is lazy and over consumption the radio has trapped in the cd,s now it is above 200 000 km where can I get satisfactory assistance.
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