ATV-0104 CC290D 2. Maximum diameter must not exceed specifica- Correcting Tooth Contact tions. NOTE: If tooth contact pattern is comparable to Measuring Connecting Rod the correct pattern illustration, no correction is (Small End Deflection) necessary. 1. Place the crankshaft on a set of V-blocks and If tooth contact pattern is comparable to an incorrect mount a dial indicator and base on the surface pattern, correct tooth contact according to the follow- plate. Position the indicator contact point against ing chart. the center of the connecting rod small end journal. Tooth Contact Shim Correction 2. Zero the indicator and push the small end of the connecting rod away from the dial indicator. Contacts at Top Decrease Shim Thickness Contacts at Root Increase Shim Thickness 3. Maximum deflection must not exceed specifica- tions. NOTE: To correct tooth contact, steps 1 and 2 (with NOTE) of "Correcting Backlash" must be fol- Measuring Connecting Rod lowed and the above "Tooth Contact/Shim Correc- (Big End Side-to-Side) tion" chart must be consulted. 1. Push the lower end of the connecting rod to one ! CAUTION side of the crankshaft journal. After correcting tooth contact, backlash must again 2. Using a feeler gauge, measure the gap between the be checked and corrected (if necessary). Continue connecting rod and crankshaft journal. the correcting backlash/correcting tooth contact procedures until they are both within tolerance val- ues. CRANKSHAFT ASSEMBLY Measuring Connecting Rod (Small End Inside Diameter) 1. Insert a snap gauge into the upper connecting rod small end bore; then remove the gauge and mea- sure it with micrometer. CC289D 3. Acceptable gap range must be within specifica- tions. 3-40