Page 918 - 2006 HARLEY FLSTCI SERVICE MANUAL

Figure 3-183. Sprocket Inspection 2 3 Figure 3-184. Hydraulic Tensioners Check balance chain for missing bushings, side plates and turning marks. Inspect for tooth hooking or burn Chains will darken in color as the result of wear and exposure to engine oil. This darkening will almost always be some hue of brown. If the chain turns blue, it may be Replace balance chain any time the sprockets are replaced. Always apply a thin film of clean H-D 20W50 INSTALLATION OVERVIEW 3.19 BOTTOM END OVER- TOP END OVERHAUL: 3.17 3-131 2006 Softail: Engine

Piston
1 Plastic vent cap Spring Balance Chain marks. Replace as necessary. the result of heat exposure. engine oil before installation. Perform all steps under HAUL: ASSEMBLY. Perform all steps under ASSEMBLY.
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This is known as brinelling. If small chunks of metal
Sprocket teeth may exhibit surface deformations or
areas where the material has been compressed.
Hooking occurs when chain wears away the tooth in
Inspect base of each sprocket tooth for hooking.
are removed from the surface, it is known as pitting.
The most common type of sprocket wear is polish-
Inspect sprocket teeth for any irregular wear patterns or
See Figure 3-183. Sprockets must be flat within 0.008 in.
sprocket surface and creating a shiny, mirror-like
surface. Moderate polishing is not grounds for
This results from the chain contacting the
Replace sprockets showing pitting or brinelling.
Front and Rear Balance Sprockets
ing signs of severe hooking. a scalloped shape pattern. Replace sprockets show- Check the mating surface that fits around the balance shaft. Improperly installed sprockets may show wear on Replace sprockets during a major bottom end overhaul. Always replace sprockets in sets, including the sprocket Test hydraulic tensioners using the leakdown test for the chain guide bracket on an assembled engine. See CRANKCASE under 3.19 BOTTOM END OVERHAUL: Check to see if more air is flowing from the front or rear tensioner by placing your hand over the piston while applying compressed air to the interconnect passage.

(0.203 mm). chipping. ing. replacement. inside edges. on the flywheel. Hydraulic Tensioners ASSEMBLY. of melting, burning or cracking. Chain Guide Bracket guide bracket as an assembly.

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