Replacing Engine Gaskets
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 a scraping tool. |
| • |
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. |
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