Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Cylinder Block Inspection




Cylinder Block Inspection

Main Bearing, Crankshaft and Cylinder Block Removal and Installation

Distortion of Gasket Surface

Use straightedge and feeler gauge to check gasket surface for distortion and repair it, if flatness exceeds the limit.

Replace cylinder block if repair is not possible.

Cylinder block flatness
Limit: 0.03 mm (0.001 in.)