POSITIVE CRANKCASE VENTILATION VALVE - TM-5-3895-349-14-P0366

3. Turn crankshaft 180 clockwise (viewed from front

of engine), and align "TC1" timing mark with the

timing pointer. Adjust the inlet and exhaust valve

lash for No. 4 and No. 5 cylinders.

4. Turn crankshaft 180 clockwise (viewed from front

of engine); align "VS" timing mark with the timing

pointer. Adjust the inlet and exhaust valve lash for

No. 6 and No. 8 cylinders.

5. Inspect the valve cover gaskets. Install new gaskets

if necessary. Install the valve covers and crankcase

ventilation valve.

POSITIVE CRANKCASE VENTILATION VALVE

The PCV valve directs blow-by gases to the

combustion chambers where they are burned. An oily

accumulation around the cover could indicate the

LOOSENING LOCKNUT

diaphragm has worn through. Replace diaphragm every

2,000 service hours, or annually.

Turn the adjusting screw to allow a clearance

gauge to pass between the top of the valve

Replacing Diaphragm:

stem and the valve rocker arm. See the

LUBRICAT- ION AND MAINTENANCE

1. Clean area around PCV valve.

CHART for correct lash measurement,

2. Remove series of bolts holding cover (1) in place on

housing (4).

3. Clean and inspect all parts and replace as

necessary. Always install new gaskets and

diaphragm when disassembled for inspection.

4. When installing, coat both sides of the gasket (3)

with gasket cement and install against rear face of

inner sleeve (2).

5. To prevent diaphragm (6) from distorting and

tearing during assembly, coat both flange sides of

the diaphragm with gasket cement and install with

face marked "piston side" facing piston (5).

ADJUSTING VALVE LASH

Tighten the adjusting screw locknut.

Check valve lash clearance.

2. Turn the crankshaft 180clockwise (viewed from the

front of the engine). On later engines, align the

"VS" timing mark with the timing pointer. Adjust the

inlet and exhaust valve lash for No. 3 and No. 7

cylinders.