Volkswagen Golf 2015 Repair Manual page 89

Piston Ring Groove Clearance, Checking
Special tools and workshop equipment required
♦ Feeler Gauge
– Clean the piston ring groove before checking.
Piston Ring
Dimensions in mm
1st Compression ring
2nd Compression ring
Oil scraping rings
Check Cylinder Bore
Special tools and workshop equipment required
♦ Cylinder Dial Bore Gauge - VAS6078-
NOTICE
Risk of damaging the cylinder bore surface through incorrect
handling.
– Never handle the cylinder bore with service equipment (drill‐
ing, honing, grinding).
– Using a Cylinder Dial Bore Gauge - VAS6078- measure in a
diagonal sequence at three positions transversely -A- and lon‐
gitudinally -B-.
♦ Deviation from specified size: maximum 0.08 mm
Engine Mechanical, Fuel Injection and Ignition - Edition 04.2015
New Wear Limit
0.06 to 0.09 0.20
0.03 to 0.06 0.15
Cannot be measured
Golf 2015 ➤ , Golf Variant 2015 ➤
5. Piston and Connecting Rod
81