Perkins UA Workshop Manual page 74

4
Notes:
l The pistons and connecting rods are matched to the relevant cylinder (A1/A2). Note the position of each
connecting rod and piston for correct assembly.
l The bore of the early type gudgeon pin has changed from tapered to parallel on the latest engines. If pistons
and connecting rods are to be renewed, and they are on the same crank pin axis (ie) 1 and 4 or 2 and 3, it
is recommended that the complete set of pistons are renewed. This will prevent engine vibration due to out-
of-balance forces.
UA & UC ENGINES
A
Service operations
Remove the cylinder head, see Chapter 3, Cylinder head assembly.
Remove the big end torx screws, see Operation 4-2.
62
This document has been printed from SPI². Not for Resale
UB ENGINES
2
Workshop Manual, TPD 1392E, issue 3
700 Series
1
U1149