S&S Cycle Standard and Easy Start Chain Drive Camshafts for Harley-Davidson Twin Cam 88 Engines 1999–2006 Big Twin, except 2006 Dyna models - Manual (Page 6)

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All reference to Harley-Davidson® part numbers is for identification purposes only. We in no way are implying that any of S&S® Cycle’s products are original equipment parts or
that they are equivalent to the corresponding Harley-Davidson part number shown.
front location. See Picture 11 next page.
2. Using Loctite® 243 (blue) on screw threads, reinstall bearing
retainer and tighten screws to 20-30 in-lbs.
3. Align cam timing marks and install secondary cam chain in original
direction of travel. See Picture 12 next page.
4. Apply thin film of assembly lube to bearing surface of S&S®
camshafts and inner race of cam bearings in cam plate. Support
bearings by inner race. Using tool H-D® #43644, align both cams
with bearings, install into cam bearings by pressing on front cam
only, guide slip-fit rear cam into bearing. See Picture 13 next
page.
5. Install new retaining ring in groove at end of front cam.
6. Remove cam needle bearings from crankcase with tool H-D #42325
and replace with new bearings provided in S&S installation kit 33-
5175 or obtained from other source. Lubricate with clean engine
oil.
7. Apply thin layer of assembly lube to cam journals and lobe
surfaces. Align cams with needle bearings and carefully slide
support plate assembly over crankcase dowels. See Picture 14
below right.
8. Apply Loctite® 243 (blue) to six support plate screws, install screws,
and gradually tighten to 95 in-lbs. in sequence illustrated in Figure
2 on page 7.
NOTE: Support plate assembly should slide into place without resistance. If
resistance is encountered, determine cause before proceeding. Do not force
plate assembly!
S&S® has stripped holes for support plate screws when using
maximum 120 in-lb. maximum torque spec recommended by
Harley-Davidson®. Holes stripped are those which pass through
alignment dowels, Positions #1 & #2 in Harley-Davidson diagram of
Cam Support Plate/Oil Pump Torque Sequence.
9. Apply Loctite® #243 (blue) to threads and reinstall four oil pump
bolts according to following procedure:
a. Gently bottom screws, then back out 1⁄4 turn.
b. Center pump by rotating engine while snugging screws.
c. Rotate engine by turning rear wheel (see Section B securing
motorcycle).
d. Tighten bolts to 90-120 in-lbs. in sequence illustrated in Figure
1 on page 5.
Do not use primary cam sprocket or crank sprocket bolt heads to
rotate engine.
10. Carefully remove secondary cam tensioner retaining pin.
11. Check front to back alignment of outer drive sprockets.
a. Place rear cam sprocket spacer next to rear bearing race.
b. Install rear camshaft and crankshaft sprockets.
c. Temporarily install crankshaft and camshaft sprocket bolts.
Temporarily use a smaller diameter washer under the head of
the crankshaft bolt. (This will allow a straightedge to fit on the
sprocket face for Steps 13 d and e.)
d. Torque crankshaft and rear camshaft sprockets to 25 ft-lb. Do not
use Loctite® at this time.
e. Push on rear camshaft to remove end play.
Picture 7
Picture 9 Picture 10
Figure 3 - Rear Cam Detail
.055” Thrust Washer
2000-Up Style
OEM Sprocket Spacer
Inner
Bearing Race
Bearing Assembly “O”-ring
CAUTION
CAUTION
clearance
clearance