Pipe Joint Compound
Important: Three types of sealer are commonly used in
engines. These are room temperature vulcanizing (RTV) sealer, anaerobic gasket
eliminator sealer, and pipe joint compound. The correct sealer and amount must be
used in the correct location to prevent oil leaks. DO NOT interchange the 3 types
of sealers. Use only the specific sealer or the equivalent as recommended in the service
procedure.
| • | Pipe joint compound is a pliable sealer that does not completely harden.
This type of sealer is used where two non-rigid parts, such as the oil pan and the
engine block, are assembled together. |
| • | Do not use pipe joint compound in areas where extreme temperatures are
expected. These areas include: exhaust manifold, head gasket, or other surfaces where
gasket eliminator is specified. |
| • | Follow all safety recommendations and directions that are on the container. |
Notice: Refer to Sealant Notice in the Preface section.
| • | Apply the pipe joint compound to a clean surface. Use a bead size or quantity
as specified in the procedure. Run the bead to the inside of any bolt holes. |
| • | Apply a continuous bead of pipe joint compound to one sealing surface.
Sealing surfaces to be resealed must be clean and dry. |
| • | Tighten the bolts to specifications. Do not over tighten. |
RTV Sealer
| • | RTV sealant hardens when exposed to air. This type of sealer is used where
two non-rigid parts, such as the intake manifold and the engine block, are assembled
together. |
| • | Do not use RTV sealant in areas where extreme temperatures are expected.
These areas include: exhaust manifold, head gasket, or other surfaces where a gasket
eliminator is specified. |
| • | Follow all safety recommendations and directions that are on the container. |
Notice: Refer to Sealant Notice in the Preface section.
| • | Apply RTV sealant to a clean surface. Use a bead size as specified in the procedure.
Run the bead to the inside of any bolt holes. |
| • | Assemble components while the RTV sealant is still wet, within 3 minutes.
Do not wait for the RTV sealant to skin over. |
| • | Tighten bolts to specifications. Do not over tighten. |
Anaerobic Sealer
| • | Anaerobic gasket eliminator hardens in the absence of air. This type of
sealer is used where two rigid parts, such as castings, are assembled together. When
two rigid parts are disassembled and no sealer or gasket is readily noticeable, the
parts were probably assembled using a gasket eliminator. |
| • | Follow all safety recommendations and directions that are on the container. |
| • | Apply a continuous bead of gasket eliminator to one flange. Surfaces to
be sealed must be clean and dry. |
Notice: Refer to Sealant Notice in the Preface section.
| • | Spread the sealer evenly with your finger to get a uniform coating on the sealing
surface. |
| | Important: Anaerobic sealed joints that are partially
torqued and allowed to cure more than five minutes may result in incorrect shimming
and sealing of the joint.
|
| • | Tighten bolts to specifications. Do not over tighten. |
| • | After correctly tightening the fasteners, remove the excess sealer from
the outside of the joint. |
