Replacing Engine Gaskets
Gasket Reuse and Applying Sealant
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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 specified in the service
procedure. |
Separating Components
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Use incorporated pry points to
separate components using an RTV sealing system. |
• |
Do not try to separate RTV
sealed components by prying against other engine components.
|
• |
Pry points are positioned so
no other vital engine components are damaged when they are
used. |
Cleaning Gasket Surfaces
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Use care to avoid gouging or
scraping the sealing surfaces. |
• |
Use a plastic or wood scraper
in order to remove all the sealant from the components.
|
|
Do not use any other method or technique to remove the sealant
or the 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.
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|
- |
Abrasive pads
also produce a fine grit that the oil filter cannot remove from the
engine oil. |
|
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This fine grit is
an abrasive and can cause internal engine damage. |
Assembling Components
• |
Assemble components using only
the sealant, or equivalent, that is specified in the service
procedure. |
• |
Sealing surfaces must 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.
|
• |
Apply only the amount of
sealant specified in the service procedure to a component.
|
• |
Do not allow the sealant to
enter into any blind threaded holes, as the sealant may prevent the
fastener from clamping properly or cause component damage when
tightened. |
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Note: Do not
overtighten the fasteners.
|
• |
Tighten the fasteners to the
proper specifications. |
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