REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mercedes-Benz C-Class (from 1993 to 2000, the year of issue)

general info. full specifications. diagnostics. hints. tips. tricks

Home

Mercedes-Benz
	C-class
		Introduction
		Maintenance
		Engines
			The petrol engine (DB)
				Introduction
				An identification number
				Engine
				Cars with air conditioning
				The bottom cover of the engine compartment
				Covers cast holes
				Chain tensioner
				Cylinder head cover
				Cylinder Head
				Camshafts
				Hydraulic bucket tappets
				Valve stem seals
				Valves
				Valve guide
				Valve seats in the cylinder head
				Compression
				V-belt
				Fault Diagnosis (OBD)
				General remarks
				Repair work without dismantle of the engine
				Engine Overhaul
			Diesel engine (DD)
		Lubrication system
		Cooling
		Heating and ventilation
		Ignition system
		Fuel system
		Chassis
		Steering
		Brakes
		Body
		Electrical

Valves

Withdrawal

A warning

If items control valve will be used again, they must be installed in its place. In order not to confuse parts, fabricate panel for storage.

PERFORMANCE ORDER

1. Remove the cylinder head and place on two wooden coasters.
2. Remove the camshafts.
3. Remove bucket tappets.
	4. Designate the valves before disassembly to install them in the assembly in place. To this number the plate valve marker.
	5. Remove the valve using existing tensioner spring. In this stretch the spring and remove crackers of the valve stem. Then uncompress the spring and remove the top plate and the valve spring.
6. Remove the valve stem seals.
7. Remove the valve from the cylinder head toward a combustion chamber.
8. Clean the valve. Valves with a plate of burnt, with low height plates, a worn and scratched, replace the rod.
9. In the repair shop can check the valve stem on the allowable runout, which should not be more than 0.03 mm. A warning The exhaust valves are filled with sodium. They should not be subjected to soldering, or be used as a working tool (such as an ejector): risk of explosion!

Setting

PERFORMANCE ORDER

1. Before assembly, check valve guide them, if necessary - modify the valve seats.

A warning

If you are installing a new valve, just in case the pre-modify the valve seat.

2. Remove burrs from the valve stem to the contact surface parts of the valve stem.

3. Lightly oil the engine oil valve stem and the valve guide and valve insert.

4. Install the valve stem cap.

5. Install the valve spring.

6. Then set the next valve. This does not confuse the inlet and outlet valves.

7. Set the bucket tappets.

8. Install the camshafts.

9. Install the cylinder head.

next page »
Valve guide