S&S Cycle 49-State Certified X-Wedge Engine - Manual (Page 7)

7
Cam Belt Drive Replacement
Be sure the battery is disconnected to prevent any accidental engine turnover during the service.
Belt Removal
1- Remove the belt cover.
2- Immobilize the engine by placing it in gear with the rear wheel on the ground.
3- Use special S&S socket PN 106-0750 to take the tension off of the belt tensioner. Once it is fully relieved, you can use a bolt in the lower cam
plate mounting area to hold the ratchet in place.
4- Remove the two idler pulleys at the top of the cam plate. Note their orientation: one has a bevel going towards the cam plate and the other
facing away from the cam plate.
5- Slide the belt off.
NOTE: An 11/16" open-end wrench may be used in place of S&S socket tool, PN 106-0750.
Do not bend the belt tighter than the size of the pulleys. Do not twist the belt or crease it.
Belt Installation
1- Installation of a new belt is simple, but requires the use of S&S Cam Alignment Pins, PN 106-0576 for each of the three cams.
2- Rotate the cams around until they are positioned over the alignment holes. Install the S&S Cam Alignment Pins.
3- Align the notch on the crank pulley with the FTDC mark on the cam plate.
4- Make sure the tension is removed from the belt tensioner.
5- Pass the belt around the cam gears—there is a diagram of the belt and its installation pattern inside the cam cover.
6- Install the rear idler pulley with the pulley oriented so the flange is against the cam plate. Tighten idler pulley bolt to 20 ft/lbs
7- Install the front idler pulley with the pulley oriented so the flange is on the outside of the belt. Tighten idler pulley bolt to 20 ft/lbs
8- Once you have everything aligned, release the tension on the belt tensioner.
9- Install a new gasket and replace the belt cover.
NOTEs:
3/16” by 2” long dowel pins may be used in place of S&S® cam Alignment Pins PN 106-0576.
•
If you do not have S&S Cam Alignment Pins or 3/16” dowel pins, the belt is marked with alignment points on its edge. Align the hole in the cam sprockets
•
with the alignment holes in the cam plate, align the crank pulley with FTDC, and align the belt marks with the dot on the edge of the sprockets.
Engine Specifications
• Bore = 4.125”
• Stroke = 4.375”
• Displacement = 117 CID
• Valve sizes = 2.000” Intake and 1.605” Exhaust
• Pistons = Forged, common front and rear
• Wristpin diameter = 0.927”
• V angle = 56.25 degrees
• Cam drive = 30 mm wide belt with automatic tensioner
• Valve train = Hydraulic roller tappet with pushrods
• Rocker arm ratio = 1.7:1
• Crankshaft = Forged and nitrided one piece
• Rod type = 7.400” forged, split design 7/16" bolt
• Bearing type = Tri metal plain style rod and main
• Main bearing journal = 2.36” dia.
• Rod bearing journal = 2.20” dia.
• Oil system = Dry sump, internal gerotor pump
• Induction and Engine Management = 2 1/16” throttle body with S&S closed loop VFI
• Fuel injectors = 34.8 lb/hr @ 3 bar fuel pressure
• Compression = 9.75:1
• Complete engine weight = 163 lbs
WARNING
WARNING