46 486 PL ENGINE P Cam Shaft Inspection Carry out visual inspection of cam shaft for l Over heating of journals, indicated by bluish/ brown colour. l Deep scoring marks an journal and cam lobes. l Cracks, which should be checked on a magnetic crack detector. Check hardness of cam shaft journals and cam lobes Check cam shaft run out at 2nd 3rd & 4th journal by supporting on V-block at 1st & 5th journal. Fig. 103 Check cam shaft journal dimensions. Inspect hydraulic tappets for scoring marks and proper functioning of hydraulic plunger. Fig. 104 Check for clear oil passage. Fig. 105 Fig. 104 Fig. 103 Hydraulic Plunger Bottom Pad Top Pad Inspect hydraul ic chain tensioner for proper functioning of hydraulic plunger. Fig. 105 Check for clear oil passage. Check for fitment of l Exhaust manifold studs. l Inlet manifold studs. l Bearing cap studs. l Bent, damaged studs should be replaced Check for fitment of anti-drain valve, on the face of the cylinder head mating with the crank case.
RkJQdWJsaXNoZXIy MTIwNTUz