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Home >> Volkswagen >> 2015 >> Jetta S, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Crankshaft & Cylinder Block (General & Service Information - CVCA, CUUA, CUUB, DELA, DEBA, DEJA, DGMA)) >> 13 Crankshaft, Cylinder Block >> Pistons And Connecting Rod >> Piston And Cylinder Bore, Checking >> Notes

Piston And Cylinder Bore, Checking: Notes

WARNING: This page is about a different variant/trim than selected.
GWWN13-10567Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Measure approximately 15 mm from the lower edge at a 90° angle to the piston pin axis using a 75 to 100 mm external micrometer.

NOTE:

Check for wear on the piston shaft-coating and general coking.

The piston must be replaced if cracks have formed on the piston shaft.

Piston Diameter In mm
Specified size 80.92 1)
  • 1) Measurement with coating (thickness = 0.02 mm). The coating wears off.
GWWV13-0280Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Using a :VAS6078  measure in a diagonal sequence at three positions laterally -A- and longitudinally -B-.

NOTE:

Pay attention to scratches and other abnormalities on the cylinder wall.

Cylinder Bore Diameter In mm
Specified size 81.03
NOTE:

The cylinder bore must not be measured when the cylinder block is mounted on the :VAS6095A  because the measurements may be incorrect.