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Scored camshaft journals Damaged camshaft lobes Damaged camshaft sprocket locator slots Damaged threads 3. Measure the camshaft lobes using a micrometer. The intake camshaft lobes should be a minimum of 41.5 mm (1.635 in). The exhaust camshaft lobes should be a minimum of 41 Fig. 459: Measuring Camshaft Runout & Lobe Lift 4. Use J 7872 to measure the camshaft runout. 1. Set the camshaft in V-blocks between the centers. 2. Measure the intermediate camshaft journal. 5. Use J 7872 to measure the camshaft lobe lift. 1. Lubricate the camshaft to V-block contact areas with engine oil. 2. Set the camshaft on V-blocks. 3. Measure the camshaft lobe lift.
2007 Hummer H3 2007 ENGINE Engine Mechanical - 3.7L - H3
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