TrailBlazer 2WD V8-5.3L (2007)
Important:
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Do not reuse the crankshaft oil seal or front cover gasket.
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Do not apply any type of sealant to the front cover gasket, unless specified.
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The special tool in this procedure is used to properly center the front crankshaft front oil seal.
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All gasket surfaces should be free of oil or other foreign material during assembly.
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The crankshaft front oil seal MUST be centered in relation to the crankshaft.
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An improperly aligned front cover may cause premature front oil seal wear and/or engine oil leaks.
Apply a 5 mm (0.2 in) bead of sealant 20 mm (0.8 in) long to the junction of the oil pan and the engine block. Refer to Sealers, Adhesives, and
Lubricants for the correct part number.
1. Install the front cover gasket and cover.
2. Install the front cover bolts until snug. Do not over tighten.
3. Install the oil pan-to-front cover bolts until snug. Do not over tighten.
4. Install J 41476 to the front cover.
5. Align the tapered legs of J 41476 with the machined alignment surfaces on the front cover.
Notice: Refer to Fastener Notice.
6. Install the crankshaft balancer bolt until snug. Do NOT over tighten.
1. Tighten the oil pan to front cover bolts to 25 N.m (18 lb ft).
2. Tighten the engine front cover bolts to 25 N.m (18 lb ft).
7. Remove J 41476.
