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: 2542006 Y Car GMX245 Corvette7.0L (LS7) Engine MechanicalAll fasteners and threaded holes on the 7.0 liter engine utilize metric threads.New Sealants and/or AdhesivesCleaning chemicals have been identified for the titanium intake valves and connecting rods. Refer to Sealers, Adhesives,and Lubricants .Changed Engine SpecificationsEngine specifications for the LS7 application have been added. Refer to Engine Mechanical Specifications .Disassembly and Assembly Procedure RevisionsOil draining and filling procedures are unique for the LS7 application. Refer to Engine Oil and Oil Filter Replacement .Engine Mechanical Diagnostic Procedure RevisionsAll diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach for repairingall systems. The diagnostic flow may always be used in order to resolve a system condition. The diagnostic flow is theplace to start when repairs are necessary. For a detailed explanation, refer to Strategy Based Diagnosis or DiagnosticStarting Point - Engine Mechanical .New Special Tools Required• EN-47812 installer bolt has been developed for use with the EN-47813 front cover alignment, the J 41478 crankshaftfront oil seal installer, and the J 41665 crankshaft balancer and sprocket installer. The EN-47812 installer bolt is requireddue to the increased length at front of crankshaft.• EN-47813 front cover alignment has been developed for alignment of the front cover. The EN-47813 is requireddue to the increased size of the front cover.• J-41558-10 crankshaft sprocket remover bolts have been developed for use with the J 8433 two jaw puller and the J41816-2 crankshaft end protector for crankshaft sprocket removal. The longer bolts are required due to the increasedlength at front of crankshaft.• EN-47971 oil pressure gage adapter has been developed for use with the new design oil filter with internal bypassvalve.• Refer to Special Tools .A Component Comparison from the Previous Year• The 7.0 liter V8 engine (RPO LS7) is optional in place of the 6.0 liter V8 engine (RPO LS2).• The LS7 application has a dry-sump type oiling system with a remote oil tank, a hose assembly from oil tank to oilpan, and a dual rotor oil pump assembly. Refer to Engine Component Description and Lubrication Description .• The connecting rods are a titanium alloy design.• The intake valves are titanium and the exhaust valves have sodium filled valve stems.• The new design oil filter has an internal oil bypass valve in the event the oil filter becomes restricted.• A crankshaft balancer washer has been added. The washer installs onto the front of the crankshaft and is positionedbetween the balancer and crankshaft sprocket. Refer to Crankshaft Balancer Installation .Description and Operation1557893Lubrication DescriptionFigure 1557890Engine Lubrication Flow254 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: 2552006 Y Car GMX245 Corvette7.0L (LS7) Engine Mechanical15525201. Engine Oil Cooler2. Oil Temperature Sensor3. Engine Oil Tank4. Oil Level Indicator5. OilFillCap6. Upper Main Oil Galleries6. Upper Main Oil Galleries7. Valve Lifters7. Valve Lifters8. Oil Pressure Sensor9. Bypass Valve – Oil Cooler10. Oil Filter11. Oil Pan Sump12. Oil Pump Screen13. Pressure Relief Valve – Oil Pump14. Oil Pump – Primary15. Oil Pump – Secondary16. Crankshaft Bearings17. Camshaft Bearings255 of 272
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