Skoda Workshop Service and Repair Manuals > Octavia Mk2 > Drive unit | 1.9/77 kW TDI PD Engine | Enginecrankshaft group, pistons | Crankshaft, Piston and Conrod | Checking piston projection at TDC (Octavia II)

Checking piston projection at TDC (Octavia II)

Special tools and workshop equipment required

t	Measuring tool for liner pretension -MP1-107-

Test sequence

When fitting new pistons or a partial engine, check the piston projection in TDC on all pistons.

Depending on the piston projection fit the relevant cylinder head seal in accordance with the table below:

Piston projection over cylinder block top side mm	Marking of bores
0,91 … 1,00	1
1,01 … 1,10	2
1,11 … 1,20	3

Identification of the cylinder head gasket

t	Part number = -arrow 1-

t	Control code = -arrow 2- (ignore)

t	Bores = -arrow 3-

Note

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

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