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Replacing Engine Gaskets

Replacing Engine Gaskets


Special Tools

EN-28410 Gasket Remover

For equivalent regional tools, refer to Special Tools (LDK, LHU) .

Gasket Reuse and Applying Sealants


• Do not reuse any gasket unless specified.

• Gaskets that can be reused will be identified in the service procedure.

• Do not apply sealant to any gasket or sealing surface unless called out in the service information.


Separating Components


• Use a rubber mallet to separate components.

• Bump the part sideways to loosen the components.

• Bumping should be done at bends or reinforced areas to prevent distortion of parts.


Cleaning Gasket Surfaces


• Remove all gasket and sealing material from the part using the J 28410 Remover or equivalent.

• Care must be used to avoid gouging or scraping the sealing surfaces.

• Do not use any other method or technique to remove sealant or gasket material from a part.

• Do not use abrasive pads, sand paper, or power tools to clean the gasket surfaces.

- These methods of cleaning can cause damage to the component sealing surfaces.

- Abrasive pads also produce a fine grit that the oil filter cannot remove from the oil.

- This grit is abrasive and has been known to cause internal engine damage.


Assembling Components


• When assembling components, use only the sealant specified or equivalent in the service procedure.

• Sealing surfaces should be clean and free of debris or oil.

• Specific components such as crankshaft oil seals or valve stem oil seals may require lubrication during assembly.

• Components requiring lubrication will be identified in the service procedure.

• When applying sealant to a component, apply the amount specified in the service procedure.

• Do not allow the sealant to enter into any blind threaded holes, as it may prevent the bolt from clamping properly or cause component damage when tightened.

• Tighten bolts to specifications. Do not overtighten.