User Manual

Page 5-46
200 BENCH PROCEDURES
1. Lubricate the valve guides and valve stems
with engine oil prior to installation.
2. Install valve spring lower washer (Roto-Coil),
over valve guide.
3. Lubricate valve stem seals with engine oil
and install seals using valve seal installer
J 42453.
4. Install valve into cylinder head.
5. Check valve stem tip for nicks or burrs that
may damage valve seal upon installation.
6. Install valve spring, upper washer and
keepers. Use tool J 29294-B to install
keepers.
Refer to Figures 5-59 and 5-60.
7. After valves are assembled, check each
inlet valve for head height above cylinder
deck. The protrusion dimension for inlet
valves should be 0.0425 ± 0.007 inch
(1.0795 ± 0.178 mm).
Figure 5-59 — Checking Valve Assembly Height
8. Check each exhaust valve for head depth
below cylinder deck. The depth dimension
for exhaust valve should be 0.0414 ± 0.007
inch (1.0516 ± 0.178 mm), or 0.021 ± 0.007
inch (0.553 ± 0.178 mm) for Pyromet valves.
Figure 5-60 — Inlet/Exhaust Valve Head Depth Measurement
1. Inlet valve 2. Depth/height
measurement tool
5-101.bk Page 46 Friday, March 17, 2006 11:05 AM