TOHATSU BFT 250A, Service Manual

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SERVICE INFORMATION
LUBRICATION & SEAL POINT
ENGINE
Material Location Remarks
Engine oil Oil filter holder threads
Oil filter cartridge O-ring
Lost motion
Valve stem seal internal circumference
Valve adjusting screw threads
Oil pipe joint O-ring
Oil control orifice O-ring
Oil strainer O-ring
Oil pump rotor chamber
30 cc
Mount case needle bearing outside circumference and
inside
Oil pump rubber
Rocker arm piston
Starter motor O-ring (59.4 x 3.1 mm)
Oil pump relief valve and relief spring
EOP switch (High pressure side) O-ring
Fuel pump (Low pressure side) O-ring (37 x 2.4 mm)
MAP sensor O-ring
IAT sensor O-ring
EBT sensor O-ring
Camshaft thrust cover O-ring
Use molybdenum oil solution
(mixture of the engine oil and
molybdenum grease in a ratio
of 1:1)
Piston outer surface, pin holes and piston rings
Piston pin outer surface
Crankshaft main journal, crankpin, thrust washer contact
surface
Camshaft journal and cam
Rocker arm shaft outer circumference
Inlet/exhaust valve stem sliding surface
Connecting rod small end inner surface
Connecting rod bearing crankshaft mating surface
Main bearing crankshaft mating surface
Thrust washer
Cylinder sleeve inner surface
Engine oil or silicone oil
(Shinetsu KF 96350 CS)
Fuel injector O-ring
Fuel hose A O-ring
Fuel joint hose O-ring
Liquid sealant (Threebond
®
1280B or equivalent)
Crankcase mating surface See page 15-23
Crankcase upper cover mating surface See page 15-22
Oil seal case mating surface See page 15-21
Liquid sealant (Threebond ®
1141H or Hondabond 4 or
Hondabond HT or equivalent)
Oil filler extension mating surface See page 12-5
Liquid sealant (Threebond
®
1215 or Hondabond 4 or
Hondabond HT or equivalent)
EOP switch (Low pressure side) threads
Liquid sealant (Threebond ®
1201 or 1215 or Hondabond 4
or Hondabond HT or
equivalent)
EBT sensor threads and seating surface
EMT sensor threads and seating surface
Liquid sealant (Threebond
®
1211 or Hondabond 4 or
Hondabond HT or equivalent)
Exhaust guide seal B installation section outer surface See page 11-7
Oil case gasket exhaust port sealing surface to oil case and
mount case
See page 12-8
Oil pump gasket water port sealing surface to cylinder block
and oil pump
See page 12-9
Liquid sealant (Threebond ®
1216 or Hondabond 4 or
Hondabond HT equivalent)
Oil pump body sealing bolt