Replacing Engine Gaskets

Replacing Engine Gaskets

Special Tools

J 28410 - Gasket Remover

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

Gasket Use and Applying Sealants

* Do not use any gasket again unless specified.
* Gaskets that can be used again 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

Caution: Refer to Sealant Caution (Sealant Caution).

* 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.
* Tighten bolts to specifications. Do not overtighten.