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Separating new conrod > < Disassembling and assembling pistons and conrods

Octavia Mk2

Checking piston projection in TDC
Checking piston projection in TDC
Special tools and workshop equipment required
t  Measuring tool for liner pretension -MP 1-107-
Test sequence
   
–  Attach the measuring tool for liner pretension -MP 1-107- to the cylinder block as shown in the illustration.
–  Measure the projection for each cylinder at 2 points.
When fitting new pistons or a partial engine, check the piston projection in TDC on all pistons.
If different values are measured during the projection measurement of the piston, the greatest dimension applies for the seal assignment.
Depending on the piston projection fit the relevant cylinder head seal in accordance with the table below.
  S13-0048
Piston projection over cylinder block top side
mm		Marking
of bores
0,91…1,001
1,01…1,102
1,11…1,203

   
Identification of the cylinder head gasket
t  Part number = -arrow 1-
t  Bores -arrow 2-
t  Bores -arrow 3- (ignore)
  Note
If different values are measured during the projection measurement of the piston, the greatest dimension applies for the seal assignment.
  A15-10508

Separating new conrod > < Disassembling and assembling pistons and conrods