John Deere約翰迪爾強(qiáng)鹿柴油發(fā)動(dòng)機(jī)大修規(guī)范

Item Measurement Specification

D05226ST Special Adapter to Torque 135 N•m (100 lb-ft).

mounting hub SAE Grade 8

socket-head-screws.

628351 Engine Adapter to the special Torque 135 N•m (100 lb-ft).

adapter SAE Grade 8 cap screws.

Engine Lift Strap Cap Screws Torque 170 N•m (125 lb-ft)

Engine Repair Stand M12 Cap Torque 140 N•m (105 lb-ft)

Screws

Engine Repair Stand M14 Cap Torque 225 N•m (165 lb-ft)

John Deere約翰迪爾強(qiáng)鹿柴油機(jī)氣缸蓋和閥門維修技術(shù)規(guī)格

Item Measurement Specification

Intake Valve Clearance Checking Clearance 0.31—0.38 mm

(Rocker Arm-to-Valve Tip) (Engine (0.012—0.015 in.)

Cold)

Exhaust Valve Clearance Checking Clearance 0.41—0.48 mm

(Rocker Arm-to-Valve Tip) (Engine (0.016—0.019 in.)

Cold)

Intake Valve Clearance Adjustment Clearance 0.36 mm (0.014 in.)

(Rocker Arm-to-Valve Tip) (Engine

Cold)

Exhaust Valve Clearance Adjustment Clearance 0.46 mm (0.018 in.)

(Rocker Arm-to-Valve Tip) (Engine

Cold)

Rocker Arm Adjusting Screw Jam Torque 27 N•m (20 lb-ft)

Nut

Intake Valves Lift 11.77—12.21 mm

(0.463—0.481 in.)

Wear Limit 11.34 mm (0.447 in.)

Exhaust Valves Lift 11.51—11.94 mm

(0.453—0.470 in.)

Wear Limit 11.08 mm (0.436 in.)

Rocker Arm Assembly

46 mm (1.81 in.) Compressed Spring Tension 18—27 N (4—6 lb-force)

Height

Spring Compressed Height 46 mm @ 18—27 N

(1.81 in. @ 4—6 lb-force)

Shaft OD 19.99—20.02 mm

(0.787—0.788 in.)

Wear Limit 19.94 mm (0.785 in.)

Shaft Support Maximum ID 20.17 mm (0.794 in.)

Item Measurement Specification

Bore ID 20.07—20.12 mm

(0.790—0.792 in.)

Wear Limit 20.17 mm (0.794 in.)

Fuel Supply Pump Push Rod OD 9.891—9.917 mm

(0.3894—0.3904 in.)

Fuel Supply Pump Push Rod Bore in ID 10.00—10.05 mm

Block (0.3937—0.3957 in.)

Camshaft Follower OD 31.61—31.64 mm

(1.245—1.246 in.)

Intake Valves Recess in Cylinder Head 0.61—1.11 mm

(0.024—0.044 in.)

Wear Limit 1.63 mm (0.064 in.)

Exhaust Valve Recess in Cylinder Head 1.22—1.72 mm

(0.048—0.068 in.)

Wear Limit 2.26 mm (0.089 in.)

Valve Springs

Spring Free Length 0 N (0 Height 54.0 mm (2.125 in.)

lb-force)1

Spring Compressed 240—280 N Height 46.0 mm (1.81 in.)

(54—62 lb-force)

Spring Compressed 590—680 N Height 34.5 mm (1.36 in.)

(133—153 lb-force)

Intake Valve Head OD 46.47—46.73 mm

(1.830—1.840 in.)

Exhaust Valve Head OD 42.37—42.63 mm

(1.668—1.678 in.)

Intake Valve Stem OD 7.864—7.884 mm

(0.3096—0.3104 in.)

Item Measurement Specification

Exhaust Valve Stem OD 7.848—7.874 mm

(0.3090—0.3100 in.)

Valve Face Maximum Runout 0.038 mm (0.0015 in.)

(Intake and Exhaust)

Valves Face Angle 29.25° ± 0.25°

Cylinder Head Flatness Maximum Acceptable Out-of-Flat for 0.08 mm (0.003 in.)

Entire Length or Width

Maximum Acceptable Out-of-Flat for 0.03 mm (0.001 in.)

Every 150 mm [5.90 in.]

New Cylinder Head Thickness 104.87—105.13 mm

(4.129—4.139 in.)

Minimum Acceptable Thickness 104.24 mm (4.104 in.)

Combustion Face Surface Finish 0.7—3.2 micrometers

(Surface Grind Only) (AA) (31—125 micro-in.)

Maximum Wave Depth 0.012 mm (0.0005 in.)

Maximum Material Removal for 0.76 mm (0.030 in.)

Resurfacing

Valve Guide Bore (New) ID 7.912—7.938 mm

(0.312—0.313 in.)

Valve Guide-to-Valve Stem (New) Clearance 0.05—0.10 mm

(0.002—0.004 in.)

Wear Limit 0.15 mm (0.006 in.)

Valve Seat Grinding Seat Angle 30°

Valve Seat Width 1.50—2.00 mm (0.059—0.079 in.)

Maximum Valve Seat Runout 0.08 mm (0.003 in.)

Cylinder Liner Height above Block 0.030—0.100 mm

(0.001—0.004 in.)

Maximum Permissible Height 0.05 mm (0.002 in.)

Difference at Nearest Point of Two

Adjacent Liners, or Within a Single

Liner

Cylinder Head Cap Screws

Step 1—Initial Torque 100 N•m (75 lb-ft)

Step 2—Second Torque 150 N•m (110 lb-ft)

Item Measurement Specification

Step 3—Verify (After 5 Minutes) Torque 150 N•m (110 lb-ft)

Step 4—Final Torque-Turn Tighten each screw an additional 60°

± 10°

Rocker Arm Support Studs Torque 60 N•m (44 lb-ft)

Rocker Arm Cover Nuts (Two-Valve Torque 35 N•m (26 lb-ft)

Head)

Cylinder Head and Valves Specifications

(Four-Valve Head)

Item Measurement Specification

Intake Valve Clearance Checking Clearance 0.31—0.38 mm (0.012—0.015 in.)

(Rocker Arm-to-Bridge) (Engine

Cold)

Exhaust Valve Clearance Checking Clearance 0.41—0.48 mm (0.016—0.019 in.)

(Rocker Arm-to-Bridge) (Engine

Cold)

Intake Valve Clearance Adjustment Clearance 0.36 mm (0.014 in.)

(Rocker Arm-to-Bridge) (Engine

Cold)

Exhaust Valve Clearance Adjustment Clearance 0.46 mm (0.018 in.)

(Rocker Arm-to-Bridge) (Engine

Cold)

Rocker Arm Adjusting Screw Jam Torque 27 N•m (20 lb-ft)

Nut

Intake Valves Lift 9.03—9.43 mm

(0.356—0.371 in.)

Wear Limit 8.70 mm (0.343 in.)

Exhaust Valves Lift 9.32—9.72 mm

(0.367—0.383 in.)

Wear Limit 9.00 mm (0.354 in.)

Valve Bridge Pocket-to-Pocket Variation 0.1 mm (0.004 in.)

(Maximum)

Rocker Arm Assembly

46 mm (1.81 in.) Compressed Spring Tension 18—27 N (4—6 lb-force)

Height

Spring Compressed Height 46 mm @ 18—27 N

(1.81 in. @ 4—6 lb-force)

Shaft OD 19.962—20.038 mm

(0.786—0.789 in.)

Wear Limit 19.91 mm (0.784 in.)

Item Measurement Specification

Rocker Arm Bore ID 20.065—20.115 mm

(0.790—0.792 in.)

Wear Limit 20.16 mm (0.794 in.)

Fuel Supply Pump Push Rod OD 9.891—9.917 mm

(0.3894—0.3904 in.)

Fuel Supply Pump Push Rod Bore in ID 10.00—10.05 mm

Block (0.3937—0.3957 in.)

Camshaft Follower OD 31.61—31.64 mm

(1.245—1.246 in.)

Intake Valves Recess in Cylinder Head 0.77—1.27 mm

(0.030—0.050 in.)

Wear Limit 1.77 mm (0.070 in.)

Exhaust Valve Recess in Cylinder Head 0.81—1.31 mm

(0.032—0.052 in.)

Wear Limit 1.81 mm (0.071 in.)

Intake and Exhaust Valves Maximum Variation for a Pair of 0.3 mm (0.012 in.)

Valves (Per Cylinder)

Valve Springs

Spring Free Length 0 N (0 Height 46.15 mm (1.82 in.)

lb-force)1

Spring Compressed 166 N (37.32 Height 37.21 mm (1.46 in.)

lb-force)

Spring Compressed 356 N (80.03 Height 27.01 mm (1.06 in.)

lb-force)

Intake Valve Head OD 36.87—37.13 mm

(1.452—1.462 in.)

Exhaust Valve Head OD 35.87—36.13 mm

(1.412—1.422 in.)

Item Measurement Specification

Intake Valve Stem OD 6.987—7.013 mm

(0.2750—0.2761 in.)

Exhaust Valve Stem OD 6.984—7.000 mm

(0.2749—0.2756 in.)

Valve Face Maximum Runout 0.038 mm (0.0015 in.)

(Intake and Exhaust)

Cylinder Head Flatness Maximum Acceptable Out-of-Flat for 0.08 mm (0.003 in.)

Entire Length or Width

Maximum Acceptable Out-of-Flat for 0.03 mm (0.001 in.)

Every 150 mm (5.90 in.)

New Cylinder Head Thickness 104.87—105.13 mm

(4.129—4.139 in.)

Minimum Acceptable Thickness 104.24 mm (4.104 in.)

Combustion Face Surface Finish 0.7—3.2 micrometers

(Surface Grind Only) (AA) (31—125 micro-in.)

Maximum Wave Depth 0.012 mm (0.0005 in.)

Maximum Material Removal for 0.76 mm (0.030 in.)

Resurfacing

Valve Guide Bore (New) ID 7.041—7.067 mm

(0.277—0.278 in.)

Intake Valve Guide-to-Valve Stem Clearance 0.03—0.08 mm

(New) (0.0012—0.0031 in.)

Exhaust Valve Guide-to-Valve Stem Clearance 0.04—0.09 mm

(New) (0.0016—0.0035 in.)

Intake and Exhaust Valve Clearance 0.15 mm

Guide-to-Valve Stem (Wear Limit) (0.0059 in.)

Cylinder Liner Height above Block 0.030—0.100 mm

(0.001—0.004 in.)

Maximum Permissible Height 0.05 mm (0.002 in.)

Difference at Nearest Point of Two

Adjacent Liners, or Within a Single

Liner

Cylinder Head Cap Screws

Step 1—Initial Torque 100 N•m (75 lb-ft)

Item Measurement Specification

Step 2—Second Torque 150 N•m (110 lb-ft)

Step 3—Verify (After 5 Minutes) Torque 150 N•m (110 lb-ft)

Step 4—Final Torque-Turn Tighten each screw an additional 60°

± 10°. (See TORQUE-TURN

METHOD FOR PROPER TORQUE

in this group.)

Glow Plug Torque 15 N·m (11 lb-ft)

Rocker Arm Carrier Screws Torque 60 N·m (44 lb-ft)

Rocker Arm Shaft End Clamps Torque 36 N·m (27 lb-ft)

Rocker Arm Shaft Clamps Torque 60 N•m (44 lb-ft)

Rocker Arm Cover Nuts (Four-Valve Torque 7 N•m (62 lb-in.)

Head)

Glow Plug Harness Rail Screws Torque 11 N·m (8 lb-ft)

Heat Shield-to-Cylinder Head Screws Torque 60 N·m (44 lb-ft)

Heat Shield-to-Rocker Arm Cover Torque 10 N·m (7 lb-ft)