3.17. Check and adjustment of gaps of valves (each 24 000 km of a run or time in 12 months)
Check
|
|
1. Need for adjustment of valvate gaps arises only after replacement or repair of components of the valvate mechanism.
2. The simplest way of check of valves is listening of the engine at an open cowl. Indicates the raised noise background published by the valvate mechanism the need of carrying out adjustment. |
|
Adjustment
Check and adjustment of gaps of valves are made at the cold engine.
|
|
1. Uncover a head of cylinders (see the corresponding Part of the Head Dvigatel).
2. Having turned a bent shaft, bring the piston of the first cylinder into the provision of VMT of the end of a step of compression (see the Head Dvigatel). The shaft is turned in the direction of normal rotation (clockwise) until VMT tag on its pulley is not combined with the index on the lower cover of a gas-distributing belt, and UP tag on a cogwheel (ah) of the camshaft(s) will not fall into a state for 12 hours.
|
|
3. Having brought the engine into this situation, it is possible to start check and adjustment of valves of the first cylinder (see an accompanying illustration). |
|
|
4a. Begin with the inlet valve. Fill the required thickness an edge of the measuring probe (see Specifications) in a gap between an end face of a core of the valve and a yoke of the drive of the valve (Civic model), or a working ledge of the corresponding cam of the inlet camshaft and the lever of the drive of the valve (Integra model) (see accompanying illustrations).
|
|
|
4b. The probe has to slip in a gap with an insignificant resistance. In case of need weaken a lock-nut and weaken the adjusting screw, then begin to tighten the screw, trying to obtain the required effect on a probe edge. |
|
|
5. Having fixed the adjusting screw from a provorachivaniye the screw-driver, tighten a lock-nut (see an accompanying illustration). Make sure that the gap in the course of tightening of a nut did not change, then, working in a similar manner, serially adjust gaps of the second inlet valve and two final. |
6. Having turned a bent shaft on 180 ° counterclockwise (the pulley of the camshaft has to be turned on 90 °), bring the piston of the third cylinder into the provision of VMT of the end of a step of compression. At the same time UP tag on a cogwheel (ah) of the camshaft(s) has to pass into situation for 9 hours. Check and adjust valves of the third cylinder.
7. Turn a bent shaft for 180 ° counterclockwise (the tag (i) UP will fall down for 6 hours) and adjust valves of the fourth cylinder.
8. Having once again turned a bent shaft on 180 ° (the tag (i) UP has to pass into situation for 3 hours). Also repeat the procedure for valves of the second cylinder.
9. Having finished adjustment of valves, establish into place a cover of a head of cylinders (see the corresponding Part of the Head Dvigatel). |
|