Compression (pressure at the end of the compression stroke) in the cylinders is the most important indicator for diagnosing the condition of the engine without disassembling it
You will need: a hex wrench “6”, heads “12”, “13”, “14”, a small chisel, a hammer
Drain the engine oil and coolant, remove the mudguard and accessory drive belt
The piston of the 1st cylinder is set to the position of the top dead center (TDC) of the compression stroke so that when carrying out work related to the removal of the timing chains, the installation of the gas distribution phases is not disturbed