Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo GTV and Spider (916) Factory Service Manual (1995-2000)15 · 70 Bodywork
15 · Body & interior

Preliminary operation

Make
Alfa Romeo
Model
GTV / Spider GTV and Spider (916) Factory Service Manual
Year
1995–2000
Section
Body › Preliminary operation
70 BodyworkPreliminary operation

c. Corrosion prevention on metal surfaces.

  • Coat the surfaces to be welded with a high conduction electrically-weldable protective product. This substance should be applied also on the contours of the parts to be welded.

PRELIMINARY OPERATION

Two metal sheets being joined with weld spots

APPLY THE CORROSION PREVENTIVE PRODUCT ON ALL SURFACES AND AROUND THE EDGES

Metal part with corrosion preventive product applied around edges

If welding is carried out near the edges of the sheet, follow the dimensions given in the table below:

Thickness of sheet (t) mm Minimum distance from sheet edge (l) mm
0.6 11
0.8 11
1.0 12
1.2 14
1.6 16
1.8 17
Diagram showing welding distance from sheet edge

Welding too near the edge is not sufficiently strong and the sheet may warp.

d. Welding sequence.

  • Do not weld in one direction only. This method results in weak welds due to electricity shunting. If the electrodes overheat and change colour, leave them to cool and reshape the tips.

Precautions to be followed for spot-welding

a. Welding three or more overlaid sheets.

  • When three or more sheets are overlaid, spot welding must be repeated a second time.
Diagram showing spot welding of overlaid sheets

b. Number of spot welds.

  • Carry out welding with the number of spots specified in this Manual.

c. Minimum distance of welding from the edge of the sheet.

Diagram showing correct and incorrect welding sequences
  1. Correct welding sequence
  2. Incorrect welding sequence

Parts & tools for this job For 1995 Alfa Romeo GTV / Spider

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