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: 1302006 Y Car GMX245 Corvette7.0L (LS7) Engine Mechanical642979. Measure the camshaft runout.9.1. Mount the camshaft in wooden V-blocks or between centers on a fixture.9.2. Using the J7872, measure the runout of the intermediate camshaft bearing journals.9.3. If camshaft runout exceeds 0.05 mm (0.002 in), the camshaft is bent and should be replaced.155245110. Inspect the camshaft retainer plate for wear or a damaged sealing gasket.If the camshaft retainer plate sealing gasket is not cut or damaged, it may be used again.11. Inspect the camshaft bearings for proper fit in the engine block. Camshaft bearings have an interference fit tothe engine block and should not be loose in the engine block bearing bores.12. Inspect the camshaft bearings for excessive wear or scoring.Bearings with excessive scoring or wear must be replaced.Measuring Camshaft Lobe Lift130 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: 1312006 Y Car GMX245 Corvette7.0L (LS7) Engine Mechanical64967Important: Measuring camshaft lobe lift is a procedure used to determine if the camshaft lobes have worn.This test is to be performed prior to engine disassembly and with the camshaft and valve train componentsinstalled in the engine.1. Using the J 8520 , measure camshaft lobe lift.2. Remove the valve rocker arms and bolts.3. Install the dial indicator mounting stud into the valve rocker arm bolt hole.4. Assemble the components of the J 8520 and position onto the stud.5. Position the shaft of the dial indicator onto the end of the pushrod.6. Rotate the face of the dial indicator to zero.7. Slowly rotate the crankshaft clockwise, until the dial indicator obtains its highest and lowest readings.8. Compare the total to specifications. Refer to Engine Mechanical Specifications .Repair Instructions1555699Camshaft Bearing InstallationTools RequiredJ 33049 Camshaft Bearing Service Set131 of 272
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