Pipe Joint Compound
Important: Engines commonly use 3 types of sealer. These sealers are RTV sealer, anaerobic gasket eliminator sealer, and pipe joint compound. Use the correct sealer and the correct amount in the proper location in order to prevent oil leaks.
DO NOT interchange the three types of sealers. Use only the specific sealer or the equivalent that the service procedure recommends.
| • | Pipe joint compound is a pliable sealer that does not completely harden. |
| • | Do not use pipe joint compound in areas where you expect extreme temperatures. These areas include the following: The exhaust manifold, the head gasket, or other surfaces where gasket eliminator is specified. |
| • | Follow all safety recommendations and directions that are on the container. |
| • | Apply the pipe joint compound to a clean surface. Do not allow the sealer to enter any blind threaded holes.The sealer may prevent the bolt from clamping correctly, or damage components when you tighten the bolt. |
| • | Tighten the bolts to specifications. Do not overtighten the bolts. |
RTV Sealer
| • | Room temperature vulcanizing (RTV) sealant hardens when exposed to air. This type sealer is for 2 non-rigid parts, e.g. the intake manifold and the engine block, that are assembled together. |
| • | Do not use room temperature vulcanizing (RTV) sealant in areas where you expect extreme temperatures. These areas include the following items: exhaust manifold, head gasket, or other surfaces where a gasket eliminator is specified. |
| • | Follow all safety recommendations and directions that are on the container. |
| • | 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. Do not allow the sealer to enter any blind threaded holes.This may prevent the bolt from clamping correctly, or cause damage when you tighten the bolt. |
| • | Assemble components within 3 minutes while RTV is still wet.
Do not wait for RTV to skin over. |
| • | Tighten bolts to specifications. Do not overtighten the bolts. |
Anaerobic Sealer
| • | Anaerobic gasket eliminator hardens in the absence of air. This type sealer is used where two rigid parts such as castings are assembled together. When two rigid parts are disassembled and a sealer or a gasket is not noticeable, the parts probably use 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 in order to get a uniform coating on the sealing surface. |
| • | Do not allow the sealer to enter any blind threaded holes.The sealer may prevent the bolt from clamping correctly, or damage components when you tighten the bolt. |
| | Important: Anaerobic sealed joints that are partially torqued and allowed to cure more than 5 minutes may cause incorrect shimming and sealing of the joint.
Do not allow the sealer to enter any blind threaded holes.The sealer may prevent the bolt from seating correctly, or damage components when you tighten the bolt.
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| • | Tighten bolts to specifications. Do not overtighten the bolts. |
| • | After correctly tightening the fasteners, remove the excess sealer from the outside of the joint. |
