TM 5-3895-359-14&P
6. Start the new pin in the cam follower body, then
carefully tap it in until it is centered in the cam follower
body.
7. Remove the cam follower from the fixture and check
the side clearance (Fig. 5). The clearance must be
.011" to .023".
Install Cam Follower and Push Rod
If new cam follower assemblies are to be installed,
remove the preservative by washing with Cindol 1705
and wipe dry. Do not use fuel oil.
Before cam followers are installed, immerse them in
clean Cindol 1705 (heated to 100-125F or 38-52C) for
at least one hour to ensure initial lubrication of the cam
roller pins and bushings. Rotate the cam rollers during
the soaking period to purge any air from the bushing-
roller area. The heated Cindol oil results in better
penetration as it is less viscous than engine oil and flows
more easily between the cam roller bushing and pin.
After the cam followers are removed from the heated
Cindol 1705, the cooling action of any air trapped in the
bushing and pin area will tend to pull the lubricant into
Fig. 7. Testing Cam Follower Spring using Tool J
the cavity.
22738-02
NOTE: Heat the Cindol 1705 in a small
Replace Cam Roller and Pin To replace a cam roller
pail with a screen insert. The screen
and pin, proceed as follows:
will prevent the cam followers from
touching the bottom of the pail and
NOTE: Do not attempt to bore out the
avoid the possibility of contamination.
legs of a standard cam follower for an
oversize pin.
Install used cam followers and push rods in their original
locations. Refer to Fig. 9 and proceed as follows:
1. Clamp fixture J 5840-01 securely in a vise as shown
in Fig. 8. Then place the cam follower in the groove in
CYLINDER HEAD ON ENGINE:
the top of the fixture, with the follower pin resting on top
of the corresponding size plunger in the fixture.
1. Note the oil hole in the bottom of the cam follower.
With the oil hole directed away from the exhaust valves
2. Drive the pin from the roller with a suitable drift.
(Fig. 10), slide the cam follower in position in the
Exercise caution in removing the cam follower body and
cylinder head.
roller from the fixture as the roller pin is seated on a
spring-loaded plunger in the fixture.
2. Assemble the serrated lower spring seat (Fig. 6),
spring and upper spring seat on the push rod.
3. Before installing the new roller and pin, remove the
preservative by washing the parts with clean lubricating
3. Place a flat washer over the upper spring seat and
oil or Cindol 1705 and wipe dry. Do not use fuel oil.
start the locknut on the push rod. Place tool J 3092-01
After washing the parts, lubricate the roller and pin with
on the push rod between the washer and the upper
Cindol 1705.
spring seat and place the push rod assembly in the cam
follower. Then thread the locknut on the push rod until
4. Position the cam follower body in the groove of the
the spring is compressed sufficiently to permit the spring
fixture, with the small plunger extending through the
retainer to be installed. Install the retainer with the
roller pin hole in the lower leg of the follower body.
tangs facing the notch in the cylinder head.
5. Position the new cam roller in the cam follower body.
4. Remove the nut, flat washer and tool. Then reinstall
When released, the plunger will extend into the roller
the locknut and thread it as far as possible on the push
bushing and align the roller with the cam follower body.
rod.
10-2-33
