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Idiomas disponibles
Checking the X-distance
Info
The X-distance is the distance defined for the piston protrusion, when the cylinder is clamped down
and the piston is at top dead center.
The X-distance must be checked very carefully. If the X-distance is too large, the compression ratio
decreases and the engine loses power. If the X-distance is too small, the engine knocks and overheats.
The X-distance is adjusted by inserting cylinder base gaskets of various thicknesses.
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cl
Apply special tool
Setting gage (A44029006010)
–
Position the piston at top dead center.
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Check the X-distance using the special tool.
Guideline
X-dimension (upper edge of piston to upper edge
of cylinder)
Feeler gauge (79129941000)
»
If the specified value is not reached:
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Replace the cylinder base gasket with a cylinder base gasket of the required X-distance.
Info
Multiple cylinder base gaskets can be combined.
Info
It is not necessary to adjust the Z-dimension (height of the control flap). It is already preset (nominal
value: 36.5 mm).
to the cylinder.
0 ... 0.10 mm (0 ... 0.0039 in)
ASSEMBLY 5
505414-01
17
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