Piston Height Above The Cylinder Block - Perkins UA Workshop Manual

700 Series

Piston height above the cylinder block

To check
Special requirements
Description
Piston height tool
Caution: The correct piston height must be maintained in service to prevent damage to the pistons and valves
and ensure that the engine conforms to emissions legislation.
1 Put the piston height tool on the face of the cylinder block and rotate the dial of the gauge to the zero position.
2 Rotate the crankshaft until the piston is just before top dead centre (TDC).
3 Carefully put the tool over the top of the piston with the plunger of the gauge in contact with the piston above
the axis of the gudgeon pin. Rotate the crankshaft to ensure that the piston is at the highest position and make
a note of the gauge indication.
The piston height above the top face of the cylinder block should be 0,38/0,51 mm (0.015/0.020 in).
Workshop Manual, TPD 1392E, issue 3
This document has been printed from SPI². Not for Resale
Special tools
Part number
Dial gauge
21825496
(for use with the piston height tool)
Operation 4-13
Description
4
Part number
21825617
73