Test and setting values for pistons
Number | Designation | Engine 447 | Engine 489 | |||
BE03.10-N-1005-02F | Piston projection at TDC relative to contact face of crankcase | mm | 0.07...0.43 | 0.07...0.43 | ||
Test and setting values for pistons
Number | Designation | Engine | Engine | |||
BE03.10-N-1005-02I | Piston projection at TDC relative to contact face of crankcase | mm | 0.224...0.715 | 0.224...0.715 | ||
343 589 00 40 00
Dial gage holder
Dial gage
001 589 53 21 00
T03.10-0003-01
Carry out measurement without cylinder head gasket, remove if necessary.
In order to by-pass the tilt clearance of the piston, the measurement must be carried out in the direction of the piston pin.
1 Rotate crankshaft until the piston to be measured is positioned at top dead center.
2 Position dial gage holder (1) on the crankcase.
Insert dial gage (2), so that the tracer pin is touching the crankcase and the dial gage (2) has a preload. Set scale of dial gage to "0".
3 Rotate dial gage holder (1) from the separating surface of the crankcase (4) via the cylinder bore.
Pull back tracer pin on dial gage (2) when moving dial gage holder.
4 Tracer pin of dial gage (2) is pushed back by the piston crown (arrow), the measurement obtained is the size of the piston projection.