Removing, checking and installing valve levers and push rods

Withdrawal

1. Remove valve cover (section 3).

2. Loosen and then remove the valve lever mounting bolts, starting at the front of the cylinder head.

3. Remove the valve levers, pivot pins and push rods and lay them together with their mounting bolts. Store the set of parts for each valve separately so that each part falls into place during installation.

4 Remove the push rods and fold them separately so as not to be mixed up during installation.

Examination

5. Check each valve lever for wear, cracks, or other damage, especially where they contact the push rods and valve stems. In each lever, check the sockets of the hinge pins, as well as the appearance of the hinge pins themselves (see picture). Look for binding points, stress cracks, and unusual signs of wear. If the valve lever is worn or damaged, replace it with a new one and also replace the pivot pin.







6. Make sure the oil hole at the end of each valve lever push rod is open.


7. Check the push rods for cracks and heavy wear at the ends. Roll each rod across the surface of the glass plate to determine if it is bent (if it vibrates, it means it's bent).

Installation

8. Lubricate the bottom end of each rod with clean engine oil or grease based on "moth" and put it in its place. Make sure the rods sit snugly in the sockets.

9. Bring the #1 piston to top dead center on the compression stroke (section 5).

10. Apply Moth Lubricant to the valve stem ends and upper rod ends before reinstalling the valve levers.

11. Install both cylinder #1 valve levers (cm/ figure), cylinder #2 inlet valve lever, and cylinder #3 exhaust valve lever; then install the pivot pins and bolts. Apply moth grease to the pivot pins to prevent damage to their mating surfaces until they are exposed to engine oil. Tighten bolts to specification torque.



12. Rotate the crankshaft 180 degrees in the direction of rotation until the #4 piston reaches dead center on the compression stroke. The distributor slider should point in the direction of terminal No. 4 on the cover (if the cover is removed, the slider should be directed towards the engine block).


13. Install the remaining valve levers and pivot pins and tighten the bolts to the correct torque.

14. Install the valve cover (section 3).

15. Start engine, listen for valve knock, check for oil leaks and valve cover assembly.