Nissan Sentra manuals

Nissan Sentra Service Manual: Precautions in repairing high strength steel

High strength steel (HSS)

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:

Tensile strength

Nissan/Infiniti designation

Major applicable parts

373 N/mm2 (38kg/mm2,54klb/sq in) SP130
  • Front side member assembly
  • Hoodledge assembly
  • Upper dash
  • Front pillar reinforcement assembly
  • Rear side member assembly
  • Other reinforcements

SP130 is the most commonly used HSS.

Read the following precautions when repairing HSS:

  1. Additional points to consider






  1. Precautions in spot welding HSS

This work should be performed under standard working conditions.

Always note the following when spot welding HSS:




Handling of ultra high strength steel plate parts


Handling of ultra high strength steel plate parts

PROHIBITION OF CUT AND CONNECTION

Do not cut and join the lower lock pillar reinforcement (center pillar reinforcement inside frame parts) because its material is high strength steel plate (ultra high strength steel plate).

The center pillar reinforcement must be replaced if this part is damaged.

Precaution for supplemental restraint system (SRS) "air bag" and "seat belt pre-tensioner"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the dri ...

Preparation
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Other materials:

Vehicle information
Body exterior paint color M = Metallic, S = Solid, 2S = Solid and Clear, 2P = 2-Coat Pearl, 3P = 3-Coat Pearl, PM = Pearl Metallic, t = Primerless Diamond Clear coat, Black is solvent based, all others are water based. ...

Flywheel
Exploded View Flywheel Removal and Installation REMOVAL Remove the engine and the transaxle assembly from the vehicle, and separate the transaxle from the engine. Refer to TM-28, "Exploded View". Remove flywheel. Secure flywheel (1) using Tool (A), and remove b ...

Evaporative emission system
Inspection EVAP CANISTER 1.CHECK EVAP CANISTER Block port (B). Blow air into port (A) and check that it flows freely out of port (C). Release blocked port (B). Apply vacuum pressure to port (B) and check that vacuum pressure exists at the ports (A) and (C). Block port (A) and (B). ...

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