ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
0068 00
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
DIRECT SUPPORT MAINTENANCE PROCEDURES
DIESEL ENGINE
Reassembly (see Figure 5):
CAUTION
Do not mix up the intake and exhaust valves or other components be sure to
install them in the same location from which they were removed.
1. Apply a few drops of glycerin to the intake valve stem.
2. Insert the valve stem into the cylinder head.
3. Install the following components over the valve stem: washer, new valve stem seal, spring, and
spring retainer.
4. Compress the intake valve spring.
5. Install the valve keeper onto the end of the valve stem and release the spring.
6. Repeat the above steps to reinstall the exhaust valve.
7. Install a new cylinder head O-ring onto the engine block.
8. Note the thickness identification mark on the old cylinder head gasket and select a replacement
gasket with the same thickness identification mark. Discard the old gasket.
9. If the mark on the old gasket is not legible, determine the proper replacement gasket as follows:
a. Measure on two sides of the piston how much the piston protrudes above the cylinder
block or how much it is recessed into the cylinder block.
b. Average the two measurements (h).
c. Calculate the required gasket thickness (t) using the formula 0.546 h < t < 0.596 h
d. Select the replacement gasket based on the calculation.
e. Discard the old gasket.
10. Install the new cylinder head gasket onto the engine block.
11. Place the cylinder head on the engine and secure it with four washers and nuts. Torque all four
nuts to 130 in.-lbs. Then torque all four nuts again to 260-295 in.-lbs.
12. Place the push rods into the cylinder head.
NOTE
Make sure the ends of the push rods sit in the concave ends of the tappets that are
inside the engine.
13. Place the valve caps onto the ends of the valve stems.
14. Place the rocker arm assembly onto the cylinder head and secure with the bolt. Torque the bolt
to 170-200 in.-lbs.
15. Check/adjust the intake and exhaust valve clearance. Refer to WP 0050.
16. Install the cylinder head cover using a new gasket and three bolts.
17. Insert the rubber detent plunger into the oil port on the cylinder head cover.
18. Reinstall the following components (refer to WP 0050):
Fuel injection valve torque to 95-113 in.-lbs.
Fuel return line
Air heaters
Air cleaner assembly
Muffler assembly
Fuel tank assembly
0068 00-6
