S&S Cycle Billet Rocker Covers for Harley-Davidson Twin Cam 88 - Manual (Page 3)

Failure to confirm pushrod/lifter placement before proceeding
with installation can result in damage to rocker arm support
plates and other parts. With pushrods at lowest point, front
piston will be at TDC on Compression stroke.
4. Remove breather cover and baffle assembly. See Picture 2.
5. Remove rocker arm/rocker support plate. See Picture 3.
NOTE - Gradually loosen rocker arm support bolts in following
sequence (See Figure 1):
1. Left (driveside) rear
2. Right (camside) front
3. Right (camside) rear
4. Left (driveside) front
Loosen bolts in sequence and in 1 ⁄
4
-turn increments for first 3 ⁄
4
turn.
Bolts can then be removed according to normal procedure.
6. Remove lower rocker housing bolts.
NOTE - Gradually loosen lower rocker housing bolts in following
sequence (See Figure 2):
1. Right (camside) front
2. Left (driveside) rear
3. Left (driveside) front
4. Right (camside) rear
5. Center front
6. Center rear
Loosen bolts in sequence and in 1 ⁄
4
-turn increments for first 3 ⁄
4
turn.
Bolts can then be removed according to normal procedure.
7. Remove lower rocker housing and gasket from head.
Remove oil and any remaining gasket material from
cylinder head gasket surface and clean gasket surface with
lacquer thinner.
Lacquer thinner is extremely flammable, potentially explosive,
and the fumes toxic when inhaled. Read manufacturer’s cautions
on container and use only in a well-ventilated area away from
sparks and open flame.
8. Place S&S ® lower rocker housing gasket on cylinder head.
Gasket must cover breather channel in cylinder head.
NOTE - It is possible to install gasket incorrectly. Before
proceeding, confirm that gasket is correctly placed and covers
breather channel in cylinder head. See Pictures 4A and 4B.
9. Prepare threads of six 5 ⁄
16
-18 x 3 ⁄
4
S&S rocker housing screws
according to Loctite ® instructions and apply Loctite ® 243
supplied with kit.
10. Install screws in front and rear driveside holes of lower
rocker housing and install housing on cylinder head.
Screws will hold gasket in correct position as remaining
screws are installed.
11. Install four remaining lower rocker housing screws and
gradually tighten to 15-18 ft-lbs. using sequence described in
Step 6. Measure clearance between valve spring and rocker
cover with feeler gauge. Minimum is .025”. See Picture 5.
3
Figure 1 Figure 2
1 4
2 3
2
4 1
6
5
3
Driveside
Camside
Fr
ont
Driveside
Camside
Fr
ont
CAUTION
Picture 4A Picture 4B Picture 5
Correct Incorrect
WARNING
Check clearances in areas
indicated by arrows