Skoda Workshop Service and Repair Manuals > Fabia Mk1 > Engine | 1.9/74 TDI Engine, Mechanics | Enginecrankshaft group, pistons | Crankshaft, Piston and Conrod

Checking piston projection in TDC

Special tools and workshop equipment required

t	Measuring tool for liner pretension -MP 1-107-

Procedure

–	When installing new pistons or a short engine, inspect the piston projection at TDC. Depending on the piston projection fit the relevant cylinder head seal in accordance with the table below:

Piston projection over cylinder block - top side	Marking of bore
0.91 mm…1.00 mm	1
1.01 mm…1.10 mm	2
1.11 mm…1.20 mm	3

Identification of the cylinder head seal

t	Spare parts No. = -arrow 1-

t	Control code = -arrow 2- (ignore)

t	Bore = -arrow 3-

Note

If different values are measured during the piston projection measurement, the greatest dimension applies for the seal assignment.

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