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SPECIFICATIONS
Lubricants and Sealants
Use only the following recommended sealing
compounds and lubricants.
All genuine MACK cylinder head gaskets are
precoated and do not require any type of sealing
compound. Before installing new gaskets,
degrease both sealing surfaces to avoid leaks.
Location Sealant or Lubricant
Crankshaft front seal cover Dow Corning
®
832
Cup plugs/threaded plugs Loctite
®
277 or equivalent/Teflon
®
thread sealer
Cylinder liner seats Dow Corning
®
832
Engine parts, fasteners (sides and threads) and washers Clean engine oil
Industrial adhesive 3M Scotch-Grip 4799 Industrial Adhesive
Injector copper sleeve seals Clean coolant
Oil filter sealing gaskets (full-flow filters) Clean engine oil
O-rings Use the fluid type that the O-ring contacts in use.
Liner seals Use oil provided with seals
Sensors with O-ring seals Assemble dry
Valve stems and guides Clean engine oil
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