Piston And Connecting Rod Assemblies; Big End Bearing And Cap - Perkins UA Workshop Manual

700 Series
4

Piston and connecting rod assemblies

Big end bearing and cap

To remove and to fit the early type
Special requirements
Torque Nm (lbf ft) kgf m
Big end nuts
Notes:
l Identify connecting rod to cylinders and piston when dismantled.
l Ensure that when the rods are fitted an axial play is provided.
Cautions:
l The big-end bolts are fitted to the connecting rod by a special process and must not be removed. If the bolts
are removed, the connecting rod, and the bolts will be damaged.
l Ensure that the bolts for the connecting rod do not damage the crank pin when the connecting rod is
removed or fitted. If necessary, fit a temporary plastic sleeve to the big-end bolts.
l The pistons and connecting rods are matched to the relevant cylinder. Note the position of each connecting
rod and piston for correct assembly.
l Early type connecting rods must not be mixed in the engine with the fracture split connecting rods. In this
situation, a complete set of four fracture split connecting rods must be fitted.
Connecting rods
The cylinder number is engraved on the left side of the connecting rod (A2) and cap (A1).
The letter that indicates the length grade for the connecting rod is also engraved on the left side. Some early
engines had the length grade engraved on the right side of the connecting rod and cap.
Workshop Manual, TPD 1392E, issue 3
This document has been printed from SPI². Not for Resale
54 (40) 5,5
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Operation 4-1
Continued
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