roof AUDI A4 1998 B5 / 1.G APB Engine Cylinder Block Crankshaft And Flywheel Assembly Manual
Page 23 of 26
13-36
Pistons and piston rings, installing
Pistons
Position: arrow on piston crown must always face in direction of travel.
Note:
Do not use a center-punch or similar, as pistons have a special coating.
Checking piston diameter - Mark cylinder number on piston crown with waterproof felt pen.
-
Measure pistons approx. 10 mm from bottom of skirt, at 90 to piston
pin axis.
Difference between actual and nominal diameter: not more than
0.04 mm.
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ylinder block, crankshaft and fl
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