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for Flywheels

Flywheel Truing Stand
Flywheel Truing Stand
Heavy Duty stand in professional quality for truing and balancing HD flywheel assemblies. Other makes are possible as long as they feature a similar design. The stand holds the respective flywheels between two centers and by means of adjustable indicator pointers you can true the flywheels to an accuracy of .002”. The centers are adjustable by 6” on the wheel side and by 10” on the opposite side. Another feature are the two double rollers on which you can balance individual flywheels. This requires balancing shafts, which are not included.
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Flywheel End Play Gauge
Flywheel End Play Gauge
This tool is used to check the axial play of the flywheels inside the engine case. It is screwed onto the sprocket shaft and then by pushing and pulling of the flywheel assembly the adjustable pointed pin on the tool indicates how much sideplay the flywheels have inside the crankcase.
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IC Flywheel Assembly Jigs
IC Flywheel Assembly Jigs
Top-quality Harley flywheel rebuilding jig. The heavy-duty baseplate can be fixed in a vise and holds the flywheels with two studs for loosening or tightening the shaft and crank pin nuts. The jaws simplify pre-adjustment and alignment of flywheels before the final centering on the truing stand.
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Jims Flywheel Sockets
Jims Flywheel Sockets
These sockets are machined of heat treated tool steel. With a low profile, all sockets are just long enough to give 100% nut to socket and 100% drive end contact. Machined flat at the nut receiving end to eliminate rounding off the nut.
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Jims Sprocket Shaft Bearing Puller for Big Twin
Jims Sprocket Shaft Bearing Puller for Big Twin
Use these tools to pull the Timken bearing from the sprocket shaft.
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Jims Sprocket Shaft Seal Installation Tools
Jims Sprocket Shaft Seal Installation Tools
For Big Twins 1969–up. Use to press oil seal over sprocket shaft into case.
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Jims Hard Cap for Sprocket Shafts
Jims Hard Cap for Sprocket Shafts
Hardened cap which is slided over the delicate sprocket shaft threads to protect them while pressing flywheel assembly out of the left case. Fits all Big Twins 1955 up.
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Jims Timken Bearing Driver
Jims Timken Bearing Driver
Special tool to remove and install Timken sprocket shaft bearing races.
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Jims Handles for Tapered Roller Bearing Drivers
Jims Handles for Tapered Roller Bearing Drivers
Special tool to remove and install Timken sprocket shaft bearing races.
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Jims Spacers for Tapered Roller Bearing Drivers
Jims Spacers for Tapered Roller Bearing Drivers
Special tool to remove and install Timken sprocket shaft bearing races.
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Jims Sprocket Shaft Bearing Nut Wrench
Jims Sprocket Shaft Bearing Nut Wrench
To install sprocket shaft bearing seal on all Big Twins from 1955–68.
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Jims Retaining Ring Clamp for Tapered Roller Bearings
Jims Retaining Ring Clamp for Tapered Roller Bearings
One of those tools that pay off in the workshop within a few weeks: It removes and installs the retaining ring that holds the races of 1969-2002 tapered bearing outer races apart, without damage to the case. Clamp the two parts on opposite sides of the retaining ring and use a pair of heavy duty snap-ring pliers (not included) to remove and insert the ring.
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Jims Tapered Roller Bearing Installation Tool
Jims Tapered Roller Bearing Installation Tool
Use to press the Timken bearing on the sprocket shaft of Big Twin engines from 1955–up.
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Timken Race Mandrels
Timken Race Mandrels
Necessary install the sprocket shaft Timken bearing outer race on all Big Twins from 1955–up. On Big Twins →1968 the tool can be used to drive out the race, too.
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S&S Flywheel Fixing Brackets
S&S Flywheel Fixing Brackets
Useful tools don’t have to be expensive. This handy bracket slides over the sprocket shaft splines of big twin engines, and bolts to one of the primary bolt holes of the crankcase to keep the crank from rotating. Like an extra set of hands while installing pistons and cylinders, or any other operation where you don’t want the crank to turn.
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Special Tools for Crankshafts

One of the components that mechanics usually don't dare to tackle without experience. But if you have a manual and work carefully, there is no need to shy away from it. This is because crankshafts on Harley-Davidson motorcycles can be dismantled, i.e. until the turn of the millennium. After that cylindrical crankpins were introduced which you should have special presses for. But all the older ones, the ones with the tapered crankpin ends with a fine thread, may be taken apart in a workshop that is equipped with a few special tools, individual parts may be replaced, flywheels balanced, reassembled and finally squared and trued.

The crankshafts are assembled with very high torques, and solidly manufactured sockets are required for assembly and disassembly. We like to use the ones from Jims. To prevent the crankshaft from twisting, you don't simply clamp it in a vice, but use special supports. An S&S precision balance is used for precise balancing and to determine the correct balancing weight. This is accurate to 0.1 g. A centering jack is required to determine the runout of the crankshaft journals. The finished shaft can be finally aligned with a heavy copper hammer and spreading wedges. Before installation, the tapered roller bearings are quickly fitted with special drivers.

Have any questions?

Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com