Attention: do not use a new bushing of the same size as the old one to replace. Apply the bushing of the next repair size.
2. Rebore the mounting hole according to the given data.
Bore diameter:
- 1st repair size (0,05): 11.050-11.068 mm;
- 2nd repair size (0,25): 11.250-11.268 mm;
- 3rd repair size (0,50): 11.500-11.518mm.
3. When pressing in a new bushing, control the amount of its protrusion, which should be in the range from 18.3 to 18.9 mm.
Attention: the bushings of the intake and exhaust valves have the same diameters (external and internal), but differ in length.
Length:
- intake valve bushing: 45.2 mm;
- exhaust valve bushing: 48.2 mm.
4. After installing a new bushing, check the gap in the pair «sleeve-valve» and if necessary, use a reamer to correct the inner diameter of the bushing.