POSITIVE CRANKCASE VENTILATION VALVE - TM-5-3895-349-14-P0866

with the timing pointer. Adjust the inlet and

exhaust valve lash for No. 4 and No. 5

cylinders.

Turn crankshaft 1800 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.

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 diaphragm has worn

through. Replace diaphragm every 2,000 service hours,

LOOSENING LOCKNUT

or annually.

Turn the adjusting screw to allow a

Replacing Diaphragm:

clearance gauge to pass between the top

of the valve stem and the valve rocker

Clean area around PCV valve.

arm.

See the LUBRICATION AND

MAINTENANCE CHART for correct lash

Remove series of bolts holding cover (1) in

measurement.

place on housing {4).

Clean and inspect all parts and replace as

necessary. Always install new gaskets and

diaphragm when disassembled for inspection.

When installing, coat both sides of the gasket

(3) with gasket cement and install against rear

face of inner sleeve (2).

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.

Turn the crankshaft 180 clockwise (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.

Turn crankshaft 180 clockwise (viewed from

front of engine), and align "TC1" timing mark