1. Check up a backlash between directing plugs and a valve core, having measured diameter of the valve and an aperture of the directing plug. An assembly backlash for new plugs: 0,022–0,055 mm – for inlet valves and 0,029–0,062 mm – for final valves; as much as possible admissible limiting backlash (at deterioration)
0,15 mm. |
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2. If the increased backlash between the directing plug and the valve cannot be eliminated valve replacement, replace plugs of valves, using оправкой А.60153/R (1 – оправка А.60153/R). |
3. For replacement of two directing plugs of inlet and final valves of cylinders № 1 and № 4 turn on two hairpins of fastening of the case of bearings of a camshaft as they disturb to installation оправки. |
4. Запрессовывайте directing plugs with the put on lock ring against the stop rings in a plane of a head of cylinders. |
5. After запрессовки develop apertures in directing plugs development А.90310/1 (for plugs of inlet valves) and А.90310/2 (for plugs of final valves). Then прошлифуйте a saddle of the valve also finish width of a working facet till the necessary sizes as it is specified above. |