Removal and installation
Attention! These parts can be removed without removing the cylinder head. To do this, the valve must be held with compressed air or a device.
1. Remove the cylinder head cover.
2. Remove the spark plug from the cylinder on which the valve train parts will be changed, or all the spark plugs.
3. Set the piston of the 1st cylinder to the TDC of the compression stroke. If all valve stem seals will be changed, then start the replacement from the 1st cylinder and then change sequentially, setting each cylinder to TDC in accordance with the engine operation order.
4. Screw the adapter into the spark plug hole.
5. Remove roller (And) and rocker (A), pull out the bar (And) pusher (to her).
6. Apply compressed air to the cylinder at TDC while holding the crankshaft with a wrench.
7. The valves should be pressed against the seats.
8. In the absence of compressed air, insert a piece of thick nylon rope into the hole before the piston reaches TDC. Then tighten the crankshaft until you feel resistance to pulling out the rope.
9. Plug all holes in the cylinder head with a rag and compress the spring with a tool. Remove crackers.
10. Remove the tool, oil deflector cup, spring and cap.
Attention! If an air leak is detected at this stage (if applicable), then the cylinder head must be removed for disassembly and repair.
11. Relieve air pressure by wrapping tape around the valve, or rotate the crankshaft slightly in the direction of normal rotation.
12. Check the condition of the valve stem and its deformation by turning the valve in the sleeve.
13. Check the freedom of translational movement of the valve in the sleeve. If the valve sticks, either the valve is bent or the sleeve is damaged. In this case, the cylinder head should be removed for disassembly and repair.
14. Lock the valve again (by supplying air or by inserting a piece of rope).
15. Lubricate the stem and put on a new cap.
16. Install the spring (it should face down with the color coding (2)) and glass (1 - up).
17. For exhaust valves (2) rotator is installed (3), these valves have a single groove on the stems. For intake valves (1) plate is installed (4), there are 2 grooves on the stems of these valves (3F-E engine).
18. Set crackers (drawing on the left, 1 - inlet valve cotter, 2 - exhaust valve cotter), fixing them with grease (photo on the right).
19. Remove the tool and install all removed parts in reverse order.
20. Start the engine, make sure there are no leaks and listen to the operation of the valve mechanism.