Core Plug Replacement
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Special Tools
| Illustration | Tool Name | Tool Number |
|---|---|---|
| Slide Hammer | 100-001 (T50T-100-A) |
Material
| Item | Specification |
|---|---|
| LOCTITE® Retaining Compound 620 High Temperature Loctite 620/Permatex 62050 |
WSK-N2G349-A9 |
| Threadlock 262 TA-26 |
WSK-M2G351-A6 |
NOTE:
It is necessary to use Loctite® Retaining Compound 620 High Temperature sealant on all 3 valve modular engine cylinder head cup plugs. If not used, the cylinder head cup plugs could leak or seep, causing serious engine damage.
All core plugs
- Use the Slide Hammer or a suitable tool to remove the core plug.
- Inspect the core plug bore for any damage that would interfere with the correct sealing of the plug. If the core plug bore is damaged, bore for the next oversize plug.
- Coat the cup-type core plug and bore lightly with sealant and install the core plug.
- Use a suitable tool to seat the cup-type core plug.
- Coat the expansion-type core plug and bore lightly with sealant and install the core plug.
- Use a suitable tool to seat the expansion-type core plug.
NOTE:
Cylinder block core plug shown, cylinder head core plug similar.
NOTE:
Oversize plugs are identified by the OS stamped in the flat located on the cup side of the plug.
Cup-type
NOTE:
Use care during this procedure so as not to disturb or distort the cup sealing surface.
NOTE:
When installed, the flanged edge must be below the chamfered edge of the bore to effectively seal the bore.
Expansion-type
NOTE:
Do not contact the crown when installing an expansion-type core plug. This could expand the plug before seating and result in leakage.