LS7 Corvette Mechanical Repair Specs (PDF) - Bakes Online

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Print Preview Version 8.0 PubTeX output 2006.06.15:1036 File: C:\DOCUME~1\PCOMPO~1.IGS\LOCALS~1\Temp\.aptcache\2006LS7/tfa01804.dvi User: PComposer Page: 1922006 Y Car GMX245 Corvette7.0L (LS7) Engine Mechanical15.3. If the bearing clearance is not within specifications, inspect the thrust surfaces for nicks, gougesor raised metal. Minor imperfections may be removed with a fine stone.Repair Instructions1556220Piston, Connecting Rod, and Bearing InstallationTools Required• J 8037 Ring Compressor• J8087Cylinder Bore Gage• J 41556 Connecting Rod Guide• J 45059 Angle MeterPiston Selection1552496Important: Measurements of all components should be taken with the components at normal room temperature.For proper piston fit, the engine block cylinder bores must not have excessive wear or taper. A used piston, pin,and connecting rod assembly may be installed if, after inspection is within specifications.1. With a micrometer at a right angle, measure the piston outside diameter (OD). Measure the diameter 43 mm(1.69 in) from the top of the piston. Refer to Engine Mechanical Specifications .2. Record the piston OD.192 of 272
Print Preview Version 8.0 PubTeX output 2006.06.15:1036 File: C:\DOCUME~1\PCOMPO~1.IGS\LOCALS~1\Temp\.aptcache\2006LS7/tfa01804.dvi User: PComposer Page: 1932006 Y Car GMX245 Corvette7.0L (LS7) Engine Mechanical49743. Adjust the micrometer to the recorded piston OD.4. Insert the J 8087 into the micrometer and zero the gage dial.49725. Using the J 8087 , measure the cylinder bore inside diameter (ID). Measure at a point 64 mm (2.5 in) from thetop of the cylinder.6. Record the cylinder bore ID.7. Subtract the piston OD from the cylinder bore ID in order to determine the piston-to-bore clearance. Refer toEngine Mechanical Specifications .8. If the proper clearance cannot be obtained, select another piston and pin assembly and measure the clearancesagain. If the proper fit cannot be obtained, the cylinder bore may require honing for an oversize piston.Piston, Pin, and Connecting Rod Installation193 of 272
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