Valve Mechanism, Reassembly and Installation

TM 10-3930-630-34

TA067449

Figure 11-9. Method of grinding valve seats.

tolerances.

(2) Maximum wear limit is 0.9985 inch (25.36

m. Inspect tappets for wear and damage.

mm).

n. Check tappets as follows:

(3) Tappet bore in block should be 1.0000

(1) Outside diameter of tappet should be

inch (25.4 mm). Maximum wear limit is 1.0050 inch

0.9995 to 0.9990 inch (25.38 to 25.37 mm).

(25.52 mm)

TA067450

Figure 11-10. Valve position in cylinder block.

guides by pressing into block. Press guides in from

11-5.

Valve

Mechanism,

Reassembly

and

combustion side.

Installation

d. Press valve guides into place to the distances

NOTE

shown on figure 11-11. Both valve guides should be

The valve mechanism is reassembled during the

1.4062 inch (35.71 mm) from face of block.

installation procedure.

e. Check inside diameter of valve guides after

a. Check length of valve guide. Length should be

installation and ream to inside diameter of 0.3432 to

2.3125 inch (58.7 mm)

0.3422 (8.74 to 8.69 mm) if necessary. Clean guides

b. Check outside diameter.

Outside diameter

and block thoroughly after reaming.

should be 0.6675 to 0.6565 inch (16.9 to 16.6 mm).

f. Install valve tappets (9, fig. 11-2A) in cylinder

c. Use a suitable pressing tool and install valve

11-6