John Deere 3029, 4039, 4045, 6059, 6068 — ROD BEARING CLEARANCE

Cyl. Block, Liners, Pistons & Rods/Connecting rod ROD BEARING CLEARANCE Remove connecting rod cap. Place a piece of “Plastigage” in the center of the bearing. Install cap and tighten cap screws according to specifications. RG6405 -UN-21AUG92 Remove cap and compare the width of “Plastigage” with scale provided on the side of package to determine clearance. Max. permissible clearance: 0.16 mm (0.006 in.). CD,3274,G10,1 -19-01FEB94 CTM3274 (01JUL99) 10-22 Saran Liter Engines 060799 PN=83 CONNECTING ROD BEARING MEASURE NOTE: Before measuring, the cap screws of connecting rod must be tightened according to specifications. -UN-07MAR95 SPECIFICATIONS Connecting rod bearing (assembled) ID:

3029, 4039, 6059 engines . . . . . . . . . . . . . 69.848—69.898 mm (2.7499—2.7519 in.) 4045, 6068 engines . . . . . . . . . . . . . . . . . 77.847—77.897 mm CD7120 (3.0648—3.0668 in.) Crankshaft journal OD: 3029, 4039, 6059 engines . . . . . . . . . . . . . 69.799—69.825 mm (2.748—2.749 in.) 4045, 6068 engines . . . . . . . . . . . . . . . . . 77.798—77.824 mm (3.063—3.064 in.) Maximum permissible clearance . . . . . . . . . . . . . . . . . . . . . . . . . 0.16 mm (0.006 in.) -UN-07MAR95 If clearance is not within specifications, grind crankshaft journals and select correct undersize bearings. Bearings are available in 0.25, 0.50 and 0.76 mm (0.01, 0.02 and 0.03 in.) undersizes.

CD7121 NOTE: Crankshafts with rolled grooves (steel and cast iron crankshafts) do not allow any more regrinding operations. Undersized crankshafts will be furnished by factory if available. CD,3274,G10,3 -19-01FEB94 10 22