John Deere 3029, 4039, 4045, 6059, 6068 — OVERSIZE BALANCER SHAFT BUSHING INSTALLATION

Cyl. Block, Liners, Pistons & Rods/Cylinder block CTM3274 (01JUL99) 10-19 Saran Liter Engines 060799 PN=80 OVERSIZE BALANCER SHAFT BUSHING INSTALLATION IMPORTANT: The use of oversize balancer shaft bushings on 4045 and 4039 engines with bolt-on weights is not recommended due to the rotating mass of bolt-on weights compared to thickness of balancer shaft web. 1. Check for cracked or broken cylinder block bosses. 2. Rebore cylinder block to dimensions given. 3. Chamfer front and middle bearing bores by 20-25˚ towards front of engine and rear bearing bore by 20-25˚ -UN-08MAR95 towards rear of engine to facilitate installation of the bushings. 4.

Check bores for smoothness or material defects after machining. CD30158 5. Install new oversize bushings. A—41.985—42.035 mm (1.653—1.655 in.) B—257.985—258.035 mm (10.157—10.159 in.) C—64.986—65.036 mm (2.558—2.560 in.) D—43.237—43.263 mm (1.7015—1.7025 in.) E—Reference dowel pin CD,3274,G10,23 -19-20FEB92 10 19