Valve clearance checking should be conducted after the engine has been stopped and the coolant temperature falls to below 60 ℃ . This is the pat 1 for diesel engine maintenance. In other posts, the engine troubleshooting guidelines information will be provided. (1) Remove the nut on the valve cover and scrap the cover and scrap the seals and gaskets (2) Rotate the engine and make the piston of No. 1 cylinder position at the top dead center on the compression stroke. Note: When the indicator 11 0n the flywheel housing points at mark o in the flywheel viewed from the observing window on the flywheel housing plate 9, the piston of N0 1 0r No. 6 cylinder is at the top dead center. (3) Check if the rocker arms of No.l cylinder are loose. If they are loose, the piston of No. 1 cylinder is at the top dead center on compression stroke; if not. the piston of No. 6 cylinder is at the top dead center on compression stroke. (4) When the piston of No.l cy...
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