Pipe Joint Compound
Important: 3 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 proper 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 sealer is used where 2 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 overtighten. |
RTV Sealer
| • | RTV sealant hardens when exposed to air. This type sealer is
used where 2 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 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 RTV is still wet, within 3 minutes.
Do not wait for RTV to skin over. |
| • | Tighten bolts to specifications. Do not overtighten. |
Anaerobic Sealer
| • | Anaerobic gasket eliminator hardens in the absence of air. This
type sealer is used where 2 rigid parts, such as castings, are assembled
together. When 2 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 resealed must be clean and dry. |
| • | Spread the sealer evenly with your finger to get a uniform coating
on the sealing surface. |
Notice: Refer to Sealant Notice in the Preface section.
| | 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 overtighten. |
| • | After properly tightening the fasteners, remove the excess sealer
from the outside of the joint. |
