Vedeneyev M-14P, Maintenance Manual

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113
OPERATIONS AND TECHNICAL REQUIREMENTS
CORRECTIVE
ACTIONS
CH
ECKED BY
10. Install wrench 10-32-07 in the adjustment screw slot and while turning it clockwise or
counterclockwise, set clearance indicated in Item 8.
11. Tighten the locking nut with wrench 14-24-660 supporting the adjustment screw with
wrench 10-32-07.
12. Recheck clearance between the rocker roller and the valve stem.
13. Turn the engine crankshaft and repeat operations under Items 6 through 12 for
cylinders Nos 2 through 9.
CAUTION: 1. WHEN PERFORMING OPERATIONS. PAY SPECIAL ATTENTION TO
RELIABLE LOCKING OF THE ROCKER ADJUSTMENT SCREWS. LOOSENING OF LOCKING
WILL INCREASE THE CLEARANCES WHICH MAY CAUSE FAILURE OF THE TIMING
MECHANISM PARTS.
2. WHEN UNDOING AND TIGHTENING THE ROCKER ADJUSTMENT SCREW NUT
WITH THE VALVE IN THE CLOSED POSITION, THE VALVE MAY SINK AND THE TAPPET
END MAY LEAVE ITS SEAT. TO AVOID FALLING OUT OF THE TAPPET END FROM THE
SEAT, UNDO AND TIGHTEN THE ROCKER ADJUSTMENT SCREW LOCKING NUTS OF THE
INLET AND EXHAUST VALVES WITH THE LATTER BEING IN THE FULLY OPEN POSITION.
3. NEVER TURN THE ENGINE CRANKSHAFT WITH THE ROCKER SCREWS DRIVEN
OUT FOR MORE THAN A HALF OF THREADED PART (10 mm FROM THE ROCKER
SURFACE) TO AVOID BREAKAGE OF THE TAPPET ENDS.
14. Wash the valve case covers in clean gasoline.
15. Install sealing gaskets on the valve case covers.
16. Install the covers on the cylinder valve cases.