Nissan Frontier D40. Instruction — part 164
BODY ALIGNMENT
BRM-51
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Crew Cab
LIIA2100E
1.
Gold washer
2.
Upper bushing
3.
Lower bushing
4.
Black washer
5.
Washer
6.
Upper bushing without paint mark
7.
Body mount insulator
8.
Body washer
9.
Shim
BRM-52
< ON-VEHICLE REPAIR >
BODY ALIGNMENT
King Cab
LIIA2101E
1.
Gold washer
2.
Upper bushing
3.
Lower bushing
4.
Black washer
5.
Washer
6.
Upper bushing without paint mark
7.
Body mount insulator
8.
Body washer
9.
Shim
REPAIRING HIGH STRENGTH STEEL
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REPAIRING HIGH STRENGTH STEEL
Precaution in Repairing High Strength Steel
INFOID:0000000005274696
High strength steel is used for body panels in order to reduce vehicle weight.
Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:
HIGH STRENGTH STEEL (HSS) USED IN NISSAN VEHICLES
SP130 is the most commonly used HSS.
SP150 HSS is used only on parts that require much more strength.
Read the following precautions when repairing HSS:
1.
Additional points to consider
• The repair of reinforcements (such as side members) by heat-
ing is not recommended since it may weaken the component.
When heating is unavoidable, do not heat HSS parts above
550
°
C (1,022
°
F).
Verify heating temperature with a thermometer.
(Crayon-type and other similar type thermometer are appropri-
ate.)
• When straightening body panels, use caution in pulling any
HSS panel. Because HSS is very strong, pulling may cause
deformation in adjacent portions of the body. In this case,
increase the number of measuring points, and carefully pull
the HSS panel.
• When cutting HSS panels, avoid gas (torch) cutting if possible.
Instead, use a saw to avoid weakening surrounding areas due
to heat. If gas (torch) cutting is unavoidable, allow a minimum
margin of 50 mm (1.97in).
Tensile strength
NISSAN/INFINITI designation
Major applicable parts
373 N/mm
2
(38kg/mm
2
,54klb/sq in)
SP130
• Front inner pillar upper
• Front pillar hinge brace
• Outer front pillar reinforcement
• Other reinforcements
785-981N/mm
2
(80-100kg/mm
2
114-142klb/sq in)
SP150
• Outer sill reinforcement
• Main back pillar
PIIA0115E
PIIA0116E
PIIA0117E
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< ON-VEHICLE REPAIR >
REPAIRING HIGH STRENGTH STEEL
• When welding HSS panels, use spot welding whenever possi-
ble in order to minimize weakening surrounding areas due to
heat.
If spot welding is impossible, use M.I.G. welding. Do not use
gas (torch) welding because it is inferior in welding strength.
• The spot weld on HSS panels is harder than that of an ordi-
nary steel panel.
Therefore, when cutting spot welds on a HSS panel, use a low
speed high torque drill (1,000 to 1,200 rpm) to increase drill bit
durability and facilitate the operation.
• SP150 HSS panels with a tensile strength of 785 to 981 N/
mm
2
(80 to 100 kg/mm
2
, 114 to 142 klb/sq in), used as rein-
forcement in the door guard beams, is too strong to repair.
When these HSS parts are damaged, the outer panels also
sustain substantial damage; therefore, the assembly parts
must be replaced.
2.
Precautions in spot welding HSS
This work should be performed under standard working condi-
tions. Always note the following when spot welding HSS:
• The electrode tip diameter must be sized properly according to
the metal thickness.
• The panel surfaces must fit flush to each other, leaving no
gaps.
PIIA0144E
PIIA0145E
PIIA0146E
PIIA0147E
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