User Manual

200 GENERAL INFORMATION
Page 1-5
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 gasket sealing surfaces to avoid
leaks.
Location Sealant or Lubricant
Cup plugs/threaded plugs Loctite 277 or equivalent/Teflon thread sealer
Injection nozzle holder inserts (upper and lower end) Loctite 620
Camshaft gear assembly Loctite 609
Timing gear cover
MACK Silastic (RTV Silicone Adhesive Sealant)
part No. 342SX32
Timing event marker with jam nut
Oil filter sealing gasket Clean engine oil
Holding metal parts in place
MACK MG-C grease or petroleum jelly (Vaseline)
Valve stems
Engine parts, fasteners (sides and threads), and washers Clean engine oil
Cylinder sleeve upper crevice seal (on sleeve) Ethylene glycol or propylene glycol
Cylinder sleeve seat
MACK Silastic (RTV Silicone Adhesive Sealant) part
No. 342SX32
Oil cooler assembly Permatex gasket sealer
Oil cooler assembly O-ring Drydene No. 4000
O-rings (except as noted) MACK O-ring lubricant part No. 243SX41
Chassis-mounted charge air cooling system (core sealing)
Dow Corning No. 1200 primer, Dow Corning RTV 734
adhesive (clear), and naphtha solvent or equivalent
Engine oil pressure sensor
Sealing compound on threads
Intake manifold temperature sensor
Coolant temperature sensor
Coolant level sensor
Fuel injection pump actuator connector
O-ring lube Lubrizol No. OS-50044 or equivalent
Fuel injection pump driven gear access cover
Econovance
 drive coupling bolt threads Loctite 242
Crankshaft flange and wear ring Loctite 609
Turbocharger mounting nuts Fel Pro C5A
5-101.bk Page 5 Friday, March 17, 2006 11:05 AM