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Home >> Oldsmobile >> 1984 >> Toronado 4.1 4 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 5.0L (307") V8 - VINS [Y,9] >> Removal & Installation >> Camshaft >> Inspection

Removal & Installation: Camshaft: Inspection

  1. Check camshaft journals for out-of-round condition. If journals exceed .0001" (.025 mm) out-of-round, replace camshaft and lifters. Check camshaft end play. Standard end play is .011-.077" (.27-.1.96 mm). If not to specification, check camshaft end plug for grooves or wear. Replace as necessary.
  2. Check camshaft for alignment. Use "V" block and dial indicator. If dial gauge reads more then .0015" (.040 mm), replace camshaft. Check camshaft journal-to-bearing clearance. Standard clearance is .0020-.0058" (.051-.015 mm).
  3. Check camshaft lobe lift. Attach dial indicator with a ball/socket attachment to camshaft carrier or "V" block. Measure lobe lift. If lobe lift loss is more than .002" (.05 mm), replace camshaft.
NOTE: Before installing, coat camshaft and bearings with Molykote lubricant. Install new lifters if a new camshaft is installed.
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