500SEC (140.070) V8-5.0L (119.970) (1993)
Matching Crankshaft Bearing Shells To Crankcase
Tightening
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Stud Bolt In Crankcase: 30 Nm
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Crankshaft Bearing Stud Bolt
M 10 x 1 Nut: 50 Nm
M 10 x 40 Side Bolt (10.9): 50 Nm
NOTE: The stud bolts loose their locking effect after being unscrewed and therefore should be replaced.
Procedures
CAUTION: When performing repairs, no HELI-COIL inserts may be used for the self-locking stud bolts of the crankshaft bearing caps.
NOTE:
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Self-locking stud bolts are screwed into the crankcase for securing the crankshaft bearing caps.
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These stud bolts may only be used once as the locking adhesive applied over approx. 8 mm length of the thread is no longer effective when they
are removed.
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Pay attention to the different insertion depth and collar dia. when replacing the stud bolts.
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The 5 crankshaft bearing caps manufactured from malleable cast iron are fitted into the side in the crankcase (arrows).
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The fitting face (arrows) is positioned off-centre so that the bearing caps can only be installed in one position.
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The three centre bearing caps are additionally bolted to the housing side wells.
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The crankshaft bearing caps are machined together with the crankcase and are not available as a replacement part.