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Do you have to drop the pan to replace the timing chain cover on a 5.7

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  • Chevrolet Master
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You don't need to drop the pan at all. Before replacing the front cover, grind off about two thirds of the inner metal lip on the cover, throw away the seal strip and fill the cavity there with a good grade of sensor-safe silicone. Let it partially dry. Put a dab of silicone on the two corners where the pan meets the cover and then put the cover back on, putting the bottom edge where the silicone is into place first, bringing the cover up against the block and into alignment with the two guide pins.
Smooth over ant silicone that squeezed out using your finger. The rest of the install is the same as usual.
'Been doing it that way for nearly forty years and never had one leak yet!!

Posted on Aug 25, 2010

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  • Master
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You do not have to remove the pan, but it would be easier if you loosen the front 3 or 4 bolts on each side.

Posted on Aug 25, 2010

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