S&S Cycle Chain Drive Camshaft for 2007-Up Big Twin and 2006-Up Harley-Davidson Dyna - Manual (Page 2)

2
CONTENTS OF CHAIN DRIVE CAMSHAFT KIT
Chain drive cams front and rear
•
Inner cam bearings
•
Retaining ring
•
Cam cover gasket
•
5ml tube of Loctite® 262
•
5ml tube of Loctite 243
•
INSTRUCTION CONTENTS
Introduction and Specifications
Securing Motorcycle
Disassembly
Reassembly
• Cam Needle Bearings
• Cam Installation
• Rear Cam Endplay Adjustment
• Final Assembly
• Pushrod Installation And Adjustment
INTRODUCTION AND SPECIFICATIONS
The S&S® chain drive cams outlined in this instruction sheet are intended for 2007-up big twin and 2006-up Harley-Davdison® Dyna® models.
NOTES
2004-up stock valve springs will handle camshafts with lift up to 0.585”. If a camshaft with higher lift is installed, high performance valve springs capable
•
of handling a greater lift must be used.
A cam with over 0.585” of lift will cause interference between the valve spring top collar and the valve seal with stock cylinder heads.
•
Piston to valve clearance will need to be confirmed when using a cam with over 0.585” of lift. Clearance should be at least 0.060” intake and .080"
•
exhaust.
Valve to valve clearance will need to be confirmed when using a cam over 0.585" lift. Clearance should be a minimum of 0.060".
•
Installation of S&S chain drive cams requires special tools.
•
See Picture 1 for the required tools. Attempting the cam change operation without these
tools will be difficult. Damage can result which will not be covered under warranty.
Possible failure may result if thread locking compound is not applied to the cam drive sprocket flange bolts. Always prepare threads according to the
•
instructions on the container.
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 numbers.
Cam Name Lobe
Timing
Duration Lift Centerline TDC Lift
Open Close
510C
Int 20° 38° 238°
0.510”
99.0° 0.187”
Exh 36° 4° 252° 106.0° 0.178”
551C
Int 15° 20° 215°
0.551”
92.5° 0.163”
Exh 39° 18° 237° 100.5° 0.179”
570C
Int 20° 40° 240°
0.570”
100° 0.187”
Exh 55° 20° 255° 107.5° 0.179”
585C
Int 20° 45° 245°
0.585”
102.5° 0.186”
Exh 60° 20° 260° 110° 0.179”
625C
Int 20° 55° 255°
0.625”
107.5° 0.189”
Exh 60° 20° 260° 110° 0.184”
640C
Int 25° 60° 265°
0.640”
107.5° 0.228”
Exh 65° 25° 270° 110° 0.214”
Complete Chain Drive Camshaft Kit