Engine Rebuild, Break-In, and Tune-Up
SEALANT APPLICATION GUIDELINES
Listed below are sealants which have been tested and are
used by the John Deere factory to control leakage and
assure hardware retention. ALWAYS use the following
recommended sealants when assembling your John
Deere Diesel Engine to assure quality performance.
LOCTITE thread sealants are designed to perform to
sealing standards with machine oil residue present. If
excessive machine oil or poor cleanliness quality exists,
clean with solvent. Refer to John Deere Merchandise and
Parts Sales Manual for ordering information.
AR31790 SCOTCH-GRIP EC1099 PLASTIC
AR31790 118 ml (4 oz)
Rocker arm cover gasket
LOCTITE 242--THREAD LOCK & SEALER (MEDIUM
TY9370 6 ml (0.2 oz) tube
T43512 50 ml (1.7 oz) bottle
Plugs and fittings: fuel filter base, intake manifold, cylinder
block (oil galley).
Cap screws: injection pump access cover, electronic
Oil pressure sending unit.
LOCTITE 271--THREAD LOCK & SEALER (HIGH
TY9371 6 ml (0.2 oz) tube
T43513 50 ml (1.7 oz) bottle
Studs: injection pump-to-block and exhaust
LOCTITE is a trademark of Loctite Corp.
SCOTCH-GRIP is a trademark of 3M Co.
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