General Effective December 14, 1999, a new rear cam roller bearing assembly has been installed in both Twin Cam 88 and Twin Cam 88B engines. To service these assemblies, or to replace the earlier style ball bearing using the new parts, proceed with the instructions below. NOTE The new rear cam roller bearing assembly will retrofit all splined rear cams. Removal CAUTION Cam bearings may be a loose fit in the cam support plate. To avoid possible damage, be aware that camshaft and bearing assemblies may drop out at start of press procedure. 1. Press out camshafts and bearings following existing service procedures. Regardless of model, see page 3- 83 of the 2000 FLT Models Service Manual, CAMSHAFTS/CAMSHAFT BEARINGS, REMOVAL, steps 1- 8. NOTE Some bearing retainer plates may have circular marks if the bearing has turned. Disregard these marks if observed as the retainer plate may continue to be used. 2. If the new style roller bearing is present, slide bearing from end of rear camshaft. Since bearing is a loose fit on cam, no pressing tools are required….

IMPORTANT NOTE When installing crank and primary cam sprockets, push on rear camshaft to remove end play and check alignment of sprocket faces as described in the 2000 FLT Models Service Manual, and shown in the upper frame of Figure 5. If alignment exceeds 0.010 inch, substitute existing spacer with one of those shown in Table 1. These spacers represent a new set and are to be used with the new rear cam roller bearing assembly only. Do not attempt to use earlier design spacers as they will not work….ROUTING SERVICE MANAGER SALES MANAGER PARTS MANAGER LEAD TECHNICIAN TECHNICIAN NO. 1 TECHNICIAN NO. 2 TECHNICIAN NO. 3 TECHNICIAN NO. 4 RETURN THIS TO: INITIAL HERE 1999 Harley-Davidson ® Motor Company..

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