Jetta GL L4-1.9L DSL Turbo (ALH) (2001)
Piston: Testing and Inspection
Piston projection at TDC, checking
Special tools
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VW 382/7 measuring bridge
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VW 385/17 magnetic plate
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Dial indicator
Checking
Piston projection at TDC must be measured when installing new pistons or a short block. Depending on piston projection, install the corresponding
cylinder head gasket using the following table:
Note: To measure the piston position at TDC, turn crankshaft clockwise.
Cylinder head gasket, identification
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Part No. = arrow 1
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Production control code = arrow 2 (disregard)
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Holes = arrow 3
Note: If the measurements of piston projections are different, use the largest measurement to select the proper gasket.