S&S Worldwide Motorcycle Accessories - Manual (Page 13)

G. Finish Assembling Top End
1.
Install rocker arm bases per Harley-Davidson ® specs.
2. 1991 and later five speed models only - Stock one
piece pushrod tube assemblies on 1991 and later
five speed engines must be replaced with 1986 to
1990 style two piece pushrod tubes to allow
adjustment of pushrods. Installation of 33-5360
S&S
® pushrod tube adapter provides cup for bottom
of earlier style pushrod tubes. Place stock pushrod
retainer over small end of adapter. Slide stock
pushrod seal on small end of adapter. Install
adapter, retainer, and seal over tappet bore in
crankcase with stock bolt and washer. Do not final
tighten. See Picture 16.
3. Assemble rocker arms, pushrods and pushrod tube
assemblies and adjust pushrods. For 1991 and later
five speed motors, place bottom end of 1986 to
1990 pushrod tubes in cup of adapter. Use stock
1986 to 1990 pushrod seals. Rotate S&S pushrod
tube adapters so that cup surface is as close to
perpendicular with pushrod tube as possible. Install
pushrod cover clip and final tighten stock pushrod
tube retainer bolt.
4. Install rocker covers and gaskets.
5. Install intake manifold, mounting flanges and O-
ring seals. Be sure o-rings and flanges are assembled
in correct sequence. Tapered side of O-ring must fit
into tapered side of flange. See Figure 8.
Use
flange marked “F” on front head and flange
marked “R” on rear. Slotted end of mounting
flange goes toward lower manifold mounting hole.
Flat washer provided is used on slotted end of
flange. Do not tighten mounting flange screws.
NOTE: If S&S heads are installed, special S&S manifold must be
used because intake port diameters of S&S heads are larger than
stock. Special S&S manifold requires O-ring seals which also have
larger than stock diameter to fit O.D. of manifold runners. These
O-rings, S&S part 16-0235, are included and cannot be used in
stock applications.
Incorrect O-ring seal may cause air leaks around manifold
resulting in lean condition and possible damage to engine.
H. Bolt carburetor and air cleaner assembly in place using
carburetor instructions supplied from manufacturer.
Final tighten manifold mounting flanges.
NOTE: Some builders may prefer to install carburetor after
engine is installed in frame to reduce the possibility of damage
to carb.
I. Install engine in frame according to Harley-Davidson ®
factory procedures.
NOTE: The stock head mounts, when used with longer than stock
cylinder lengths will be short. Use the special S&S head mounts
provided.
13
Figure 6
Picture 16
S&S ® Crankcase Stock Crankcase
Stage 1 10 Ft. Lbs. 7-9 Ft. Lbs.
Stage 2 22 Ft. Lbs. 12-14 Ft. Lbs.
Stage 3 35 Ft. Lbs. Turn additional 90°
Stage 4 45-47 Ft. Lbs.
CAUTION
Figure 7