The camshaft is installed with the outer journals on two prisms placed on the test plate, and the radial runout of the middle journal is measured with an indicator, which should not exceed 0.02 mm.
Camshaft bearing housing
Cracks in the bearing housing in any places are not allowed. The bearing surfaces under the camshaft journals must be free of burrs and scratches.
Check the gap between the camshaft journals and the bearing holes. The clearance is determined by calculation after measuring the necks and holes in the bearings on the cylinder head with the bearing housing installed. The gap must match the data tab. 2. If the gap is greater than 0.2 mm, then replace the cylinder head with the bearing housing.
Toothed belt
The surface of the toothed part must be with a clear tooth profile, without wrinkles, cracks, undercuts and delamination of the fabric from the rubber. On the end surfaces, there should be no delamination and fraying, a slight protrusion of the fringe of the fabric is allowed. The surface of the outer flat part must be smooth without folds, cracks, depressions and bulges.
On any surface of the belt, traces of oil are not allowed.