S&S Cycle Super Stock and Special Application Crankcases for 1936-99 Big Twin Engines - Manual (Page 16)

16
3- Installation
a- Thoroughly clean all parts.
b- Prior to flywheel installation, slip gearcover over alignment dowel pins in crankcase. Cover must not be forced. If resistance is
encountered, determine cause and correct. Remove cover.
c- After flywheels and cases have been assembled but before pinion gear and cam are installed, reinstall gear cover to check fit over
pinion shaft. Remove cover.
d- Install pinion gear and camshaft, and repeat step 3. By fitting gear cover in stages, it is easier to pinpoint source and correct alignment
problems.
J- Generator/Alternator
1- Generator right case equipped crankcases - S&S generator style crankcases are machined for late style generators that use 5⁄16” mounting
screws and 1.800” dia. centering boss behind gear. Crankcases are not designed for early generators with 1⁄4“ screws and cradle/strap
mounting arrangement.
2- Alternator left case equipped crankcases - Latest S&S alternator style crankcases are machined to accept current production Harley-
Davidson® rotors and stators. S&S crankcases shipped before late mid-fall, 1998, may require modification to accept Harley-Davidson®
45 amp alternator. See note in Section 2-A.
3- Use of early plastic coated stators and rotors with diameters greater than 6.470” is not recommended due to insufficient clearance
between rear of stator and case and OD of rotor and case. It is possible to clearance cases for these parts, but S&S recommends use of
later parts due to increased reliability.
K- 1992 and later oil filter - All S&S® alternator/cone style right crankcases feature 1992 and later oil filter mounting bosses located just forward
of gear cavity. When mounting oil filter or other accessories, use 5⁄16 -18 thread screws of correct length to provide 3⁄4” minimum thread
engagement. To check, install screw and washers, if used, in mounting flange/bracket and measure amount of screw that protrudes past
mounting surface.
8- S&S® Replacement Crankcases for Pollution-controlled vehicles in California.
S&S crankcase kits, part numbers 31-0000, 31-0003, 31-0005, 31-0012, 31-0052, and 31-0055 are legal for use in California as replacement crankcases
for 1970-1999 model year Harley-Davison® motorcycles per the California Air Resources Board, executive order # D-355-8. Each of these crankcases
is supplied with a one-time use product information label (See Figure 6) that shows it is legal for use in California. This label must be applied to the
frame of the motorcycle in a visible location, preferably near the frame serial number.
Product information label is required to aid in passing the California Smog Check program.
Only crankcases with the following S&S part numbers are a legal replacement part for pollution-controlled vehicles:
31-0000 - stock bore 1984-1991 big twin- natural
•
31-0052 – stock bore 1984-1991 big twin- black
•
31-0003 – stock bore 1970-1984 big twin
•
31-0005 – stock bore 1992-1999 big twins- natural
•
31-0055 – stock bore 1992-1999 big twins- black
•
31-0012 – 1984-1991 style cases for 1984-earlier frames
•
To install sticker perform following steps:
1- Thoroughly clean and dry area to which sticker will be applied.
2- Remove paper backing from sticker.
3- Carefully place sticker in desired position and press sticker on frame of motorcycle.
4- Smooth any wrinkles or air bubbles by gently pressing them outward from center of sticker past edge.
WARNING
Figure 6
S&S® Cycle, Inc.
PN 31-0000, 31-0003, 31-0005,
31-0012, 31-0052 & 31-0055
Crankcase Assembly
C.A.R.B. #D-355-8