Service manual

181 CID (3.0L) 4 CYLINDER GM ENGINE SERVICE MANUAL NUMBER 26
Page 3A-6 90-861329--1 MARCH 1999
Piston Ring: Oil
Production .001-.006 (0.026-0.152)
Groove
Clearance
Service
Limit
.007 (0.17) Max
Production .010-.030 (0.254-0.762) Max
Gap
Service
Limit
.040 (1.01) Max
Piston Pin
Diameter .9270-.9271 (23.546-23.550)
Production .0003-.0006 (0.008-0.016)
Clearance
Service
Limit
.001 (0.02) Max
Fit in Rod .0008-.0019 (0.020-0.050) Interference
Crankshaft
Diameter 2.2979-2.294 (58.367-58.404)
Main
Production .0002 (0.005) Max
Journal
Taper
Service .001 (0.02) Max
Out of
Production .0002 (0.005) Max
Out of
Round
Service .001 (0.02) Max
Production No.1-No.4 .001-.0024 (0.025-0.060)
Main
Service No.5 .0016-.0035 (0.041-0.088)
Bearing
Clearance
Production No.1-No.4 .001-.0025 (0.03-0.06)
Clearance
Service No.5 .002-.0035 (0.05-0.08)
Crankshaft End Play .002-.006 (0.05-0.15)
Diameter 2.09980-20995 (53.289-53.327)
Production .0003 (0.007) Max
Crankpin
Taper
Service .001 (0.02) Max
Out of
Production .0002 (0.51) Max
Out of
Round
Service .001 (0.02) Max
Rod
Production .0017-.0027 (0.044-0.0686)
Bearing
Clearance
Service
Rod Size Clearance .006-.017 (0.153-0.4318) Max
Camshaft
Intake .2529 (6.425)
Lobe Lift (Max.)
Exhaust .2529 (6.425)
Journal Diameter 1.8677-18697 (47.440-47.490)
Camshaft End Play .003-.008 (0.08-0.2032) Max
Index