Volkswagen Golf 2015 Repair Manual page 90

Golf 2015 ➤ , Golf Variant 2015 ➤
Engine Mechanical, Fuel Injection and Ignition - Edition 04.2015
Basic Dimension
in mm
Note
The cylinder bore must not be measured when the cylinder block
is mounted on the Engine and Transmission Holder - VAS6095-
because the measurements may be incorrect.
5.3.2 Piston and Cylinder Bore, Checking, En‐
gine Codes CNTA, CXCA, CXCB
Pistons, Checking
Special tools and workshop equipment required
♦ Outside Micrometer - 75-100mm - VAS6071-
– Measure approximately 15 mm in from the lower edge at a 90°
angle to the piston pin axis using a micrometer.
♦ Deviation from specified size: maximum 0.04 mm
Basic Dimension
in mm
•
1)
Measurements without graphite coating (thickness = 0.02
mm). The graphite coating wears off.
Checking Piston Ring Gap
Special tools and workshop equipment required
♦ Feeler Gauge
– Push piston ring squarely from above down to approximately
15 mm from bottom end of cylinder. To do this use a piston
without rings.
Piston Ring
Dimensions in mm
1st Compression ring
82
Rep. Gr.13 - Crankshaft, Cylinder Block
Cylinder Bore Diame‐
ter
82.51
Piston Diameter
1)
82.42
New Wear Limit
0.30 to 0.40 0.80