Bosch® FLR-9LTE, GM P/N 90541059

• Gap

0.9-1.1 N·m

0.035-0.043 lb in

• Torque

25 N·m

19 lb in

Engine at Idle (At Normal Operating Temperature)

150 kPa

21.7 psig

Service Diameter (Select Fit Designation Stamped on Block)

• (8)

85.975-85.985 mm

3.3848-3.3852 in

• (99)

85.985-85.995 mm

3.3852-3.3856 in

• (00)

85.995-86.005 mm

3.3856-3.3860 in

• (01)

86.005-86.015 mm

3.3860-3.3864 in

• (02)

86.015-86.025 mm

3.3864-3.3868 in

• (7 + 0.5) OVERSIZE

86.465-86.475 mm

3.4041-3.4045 in

• Maximum Out-of-Round

0.065 mm

0.0026 in

• Taper

0.0065 mm

0.0003 in

Service Diameter (Select Fit Designation Stamped on Top of Piston)

• (8)

85.940-85.950 mm

3.3834-3.3838 in

• (99)

85.950-85.960 mm

3.3838-3.3842 in

• (00)

85.960-85.970 mm

3.3842-3.3846 in

• (01)

85.970-85.980 mm

3.3846-3.3850 in

• (02)

85.980-85.990 mm

3.3850-3.3854 in

• (7 + 0.5) OVERSIZE

86.430-86.440 mm

3.4027-3.4031 in

• Piston Bore Clearance

0.025-0.045 mm

0.0010-0.0018 in

Compression Rings

• Thickness

1.5 mm

0.0590 in

• Ring Groove Clearance

0.02-0.04 mm

0.0008-0.0015 in

• Ring Gap

0.30-0.50 mm

0.0118-0.0196 in

Oil Ring

• Thickness

3.0 mm

0.1181 in

• Ring Groove Clearance

0.01-0.03 mm

0.0004-0.0012 in

• Ring Gap

0.40-1.40 mm

0.0157-0.0551 in

Diameter

20.990-21 mm

0.8263 in

Clearance in Piston

0.003-0.015 mm

0.0001-0.0006 in

Main Journal Diameter (color coded size designation)

• Standard Size (green)

67.980-67.988 mm

2.6763-2.6766 in

• Standard Size (brown)

67.988-67.996 mm

2.6766-2.6770 in

• Undersize -- 0.25 (green/blue)

67.730-67.738 mm

2.6665-2.6668 in

• Undersize -- 0.25 (brown/blue)

67.738-67.746 mm

2.6668-2.6671 in

• Undersize -- 0.50 (green/white)

67.480-67.488 mm

2.6566-2.6570 in

• Undersize -- 0.50 (brown/white)

67.488-67.496 mm

2.6570-2.6573 in

Main Journal Maximum Out-of-Round

0.03 mm

0.0012 in

Crankshaft Bearing Clearance

0.014-0.043 mm

0.0006-0.0017 in

Crankshaft End Play

0.010-0.76 mm

0.0004-0.0300 in

Connecting Rod Journal Diameter

48.971-48.990 mm

1.927-1.928 in

• Undersize 0.25 (blue)

48.721-48.740 mm

1.918-1.919 in

• Undersize 0.50 (white)

48.471-48.490 mm

1.908-1.909 in

Bearing Clearance

0.013-0.061 mm

0.0005-0.0024 in

Big End Diameter

52.000-52.012 mm

2.0472-2.0477 in

Side Clearance

0.07-0.28 mm

0.0027-0.0110 in

Bearing Clearance

0.038-0.051 mm

0.0015-0.0020 in

End Play

0.04-0.144 mm

0.0016-0.0057 in

Journal Diameter

27.939-27.960 mm

1.099-1.101 in

Lift

10.0 mm

0.3937 in

Radial Runout

0.06 mm

0.0023 in

Lifter Type

• Hydraulic

Valve

• Face Angle

45 degrees

• Seat Angle

45 degrees

Valve Seat Width

• Intake

1.0-1.4 mm

0.0394-0.0551 in

• Exhaust

1.4-1.8 mm

0.0551-0.0709 in

Valve Length (Production)

• Intake

101.90-102.30 mm

4.016-4.027 in

• Exhaust

92.05-92.45 mm

3.624-3.640 in

Valve Length (Service)

• Intake

101.5-101.90 mm

3.996-4.018 in

• Exhaust

91.65-92.05 mm

3.608-3.624 in

Valve Stem Diameter

• Standard (K) Intake

5.955-5.970 mm

0.2344-0.2350 in

• Standard (K) Exhaust

5.945--5.960 mm

0.2341-0.23346 in

• Oversize (K-1 - 0.075) Intake

6.030-6.045 mm

0.2374-0.2380 in

• Oversize (K-1 - 0.075) Exhaust

6.020-6.035 mm

0.2370-0.2376 in

Installed Height of Valve

39.6-40.2 mm

1.560-1.582 in

Valve Guide Diameter

• Standard (K)

6.000-6.012 mm

0.2362-0.2367 in

• Oversize (K 1 - 0.075)

6.075-6.090 mm

0.2392-0.2398 in

Installed Height of Valve Guide Intake/Exhaust

13.7-14.0 mm

0.5394-0.5512 in

Stem Clearance

• Intake

0.030-0.057 mm

0.0012-0.0022 in

• Exhaust

0.040-0.067 mm

0.0016-0.0026 in

Valve Spring Height

• Exhaust Compressed at 252 N·m (56.6 lb)

34 mm

1.338 in

• Intake Compressed at 252 N·m (56.6 lb)

34 mm

1.338 in

Total Height (Measure from Sealing Surfaces)

133.90 - 134.10

5.272 - 5.280

Maximum Distortion (length)

0.05 per 100

0.0020 per 3.937