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Engine cylinder head, valve gear > < Piston and conrod - Summary of components
Checking piston projection in TDC
Checking piston projection in TDC
Special tools and workshop equipment required
t  Measuring tool for piston projection -MP 1-107-
Work 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:
  Note
Turn the engine in a clockwise direction in order to measure the piston projection in TDC.
  S13-0048
Piston projection over cylinder block top sideMarking of bore
0.91 mm ... 1.00 mm1
1.01 mm ... 1.10 mm2
1.11 mm ... 1.20 mm3

   
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 piston projection measurement, the greatest dimension applies for the seal assignment.
  N15-0288

Engine cylinder head, valve gear > < Piston and conrod - Summary of components