Hyundai Accent

Repair and car operation

2.1.14. The valve

1 – the final valve; 2 – a saddle of the final valve; 3 – the directing plug of the valve; 4 – a plate of a spring of the valve; 5 – маслоотражательный a cap; 6 – a valve spring; 7 – the holder of a spring of the valve; 8 – crackers;

9 – crackers; 10 – the holder of a spring of the valve; 11 – a valve spring; 12 – маслоотражательный a cap; 13 – a plate of a spring of the valve; 14 – the directing plug of the valve; 15 – a saddle of the inlet valve; 16 – the inlet valve.

Removal

PERFORMANCE ORDER

1. The special adaptation compress a spring of the valve and remove from a core of the valve crackers. Slowly release the adaptation compressing a spring, and remove a valve spring, a plate of a spring and the valve from a head of the block of cylinders. The prevention For storage of valves prepare the numbered polyethylene packages or containers. 2. Пассатижами remove маслоотражательный a cap. The prevention Do not use repeatedly маслоотражательный a cap.

Check

Valve spring

PERFORMANCE ORDER

1. Examine each spring of the valve on absence of cracks and damages. 2. Measure length of a spring in a free condition. Establish a spring on a flat horizontal surface and measure a deviation of the top part of a spring from a vertical plane. Length of a spring a free condition: 42,03 mm Length of a spring under loading of 24,7 kg: 34,5 mm Maximum permissible deviation of a spring from a vertical plane – no more than 1,5 °

Directing plugs of the valve

Check up a backlash between a core and directing the valve. If the backlash exceeds maximum permissible value, replace directing plug of the valve with the plug of the increased repair size. Backlash between a core and the directing plug of the valve: Inlet the valve: 0,03–0,06 mm Final the valve: 0,035–0,065 mm Maximum permissible backlash between a core and the directing plug of the valve: Inlet the valve: 0,1 mm Final the valve: 0,15 mm

The increased sizes of the directing plug of the valve

Increase in the size, mm	Dimensional label	Diameter of an aperture in a head of cylinders, mm
0,05	5	11,05–11,058
0,25	25	11,25–11,258
0,35	50	11,50–11,508

Valve saddle

Check up a condition and width of a working edge of a saddle of the valve. If necessary repair or replace a valve saddle.

Before replacement or repair of a saddle of the valve check up deterioration of the directing plug of the valve. If the directing plug of the valve is worn out, replace it.

Repair of a saddle of the valve is necessary for spending наждачным around or a mill. The width of a working facet of a saddle of the valve should be within technical requirements.

The valve

PERFORMANCE ORDER

1. Examine each valve on revealing of following defects: – Damages or deformation of a core of the valve; – Damages of a plate of the valve; – Damages or non-uniform deterioration of an end face of a core of the valve. 2. If necessary, repair or replace the valve. Thickness of an edge: Inlet the valve: 1,1 mm Final the valve: 1,4 mm Maximum permissible thickness of an edge: Inlet the valve: 0,8 mm Final the valve: 1,1 mm

Installation

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The prevention

Before installation clear all details.
Apply a thin film engine oil on all surfaces of sliding.

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PERFORMANCE ORDER

1. Using the special adaptation 09222-22001, establish маслоотражательный a cap. 2. Grease a core of the valve with engine oil and establish the valve. At installation of the valve do not apply the big efforts not to damage маслоотражательный a cap. 3. Establish springs and holders of springs. Springs are necessary for establishing the party covered with enamel, to holders of springs. 4. The special adaptation compress a spring. Establish crackers and remove the special adaptation for spring compression. 5. Establish a head of cylinders.