Engine Sealing

Three types of sealing methods are used on the engine:
a) In-groove seals.
b) Edgebond metal carrier gaskets.
c) Formed-in-place (FIP) liquid sealant.

For a) and b) the seals are to be renewed if the mating components are disturbed during service i.e. they are not re-usable.
For c) no general servicing is required - sealant/joint designed for service life of engine (must be renewed if the mating components are disturbed).
Two types of FIP sealant are used:
Anaerobic (Loctite 648): used on core plugs and block stub pipe.
RTV silicone sealant (Loctite 5699 Ultra Grey): used on block-to-bed plate and sump-to-bed plate joints. Designed service life is 150,000 miles.