Dacia SuperNova (engine E7J). Service manual - part 85

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GENERAL

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COLLISION DIAGNOSIS

During the vehicle exploitation, the carriage body may suffer different distortions, that

lead many times to the wheels setting angles change, body elements breakage, vibrations
or even mechanical parts wear.

In these conditions, before performing the vehicle body reparation, some checking is

necessary:

Visual checking  - consisting in the examination of the mechanical elements attachments

and of the distortions occurring in the vehicle damaged areas.

Checking with the bar (control gauge)  – consisting in comparing the measurements

done in symmetric points.

The geometry checking of the rolling transmissions – this checking is the only one

enabling to find out if the body damage was not affecting the vehicle road behavior.

 IMPORTANT
This checking must be not ignored, except some border-line cases, the checking of

the rolling transmissions leading to the identification of  the distortions occurred further
to an accident.

COLLISION  DIAGNOSIS

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GENERAL

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COLLISION  DIAGNOSIS

CENTRAL PART CHECKING

This checking is performed in the purpose to establish if one of the distortions is not

affecting this floor part, from where the checking starts.

Compare the followings lengths : EI = FJ; EJ = FI.

FRONT LONGITUDINAL GIRDERS CHECKING

Compare the followings lengths: CG = DH; CH = DG.
If the lengths  (CH - DG) and the diagonals  (CG - DH) are not identical, check again

the point (3).

If points (1) and (2) are good, the front axle angles may be checked.

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COLLISION  DIAGNOSIS

REAR LONGITUDINAL GIRDERS CHECKING

Compare the following lengths: EK = FL; EL = FK.

REAR ARM CHECKING

Compare the following lengths: FM = EN.
If a difference is noticed when measuring the lengths ( FM – EN ), the rear arms are to

be replaced.

The checking operation of the rear arms is followed by a checking performed with the

gauge fixed on the arm and on the central longitudinal girder.

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GENERAL

FLOOR FRAME CHECKING

G.M.P. SUPPORT ASSEMBLY CHECKING

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GENERAL

COLLISION  DIAGNOSIS

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