Operation 4-5 To Fit - Perkins New 1000 Series Workshop Manual

4
To fit
Special requirements
Special tools
Description
Piston replacer tool
1 Ensure that the piston, the cylinder bore, the crank pin and the big end of the connecting rod are clean.
Lubricate the piston and the cylinder liner with clean engine lubricating oil.
2 Rotate the crankshaft until the relevant crank pin is at its lowest position. Lubricate the crank pin with clean
engine lubricating oil.
3 Fit the upper half of the shell bearing to the connecting rod. Ensure that the location tag is fitted correctly in
its recess. Lubricate the bearing with clean engine lubricating oil.
4 Put the piston replacer tool in position at the top of the relevant cylinder. The tool has a tapered bore to
compress the piston rings when the piston and connecting rod assembly is fitted. Ensure that the smaller end
of the tapered bore is towards the face of the cylinder block.
5 Put the piston ring gaps 120° apart. Pass the connecting rod through the piston replacer tool and allow the
piston to enter the tool. The arrow mark on the top of the piston (B) must be towards the front of the engine.
Caution: Ensure that the connecting rod will not hit the piston cooling jet as the connecting rod assembly is
fitted.
6 Push the piston and connecting rod assembly through the piston replacer tool (A) and onto the crank pin.
The piston and connecting rod assembly must be rotated to ensure that the connecting rod will not hit the
piston cooling jet as the assembly is fitted. When the connecting rod has passed the piston cooling jet, rotate
the connecting rod until the arrow mark on top of the piston is towards the front of the engine.
Note: If the bearing cap is secured by nuts and bolts, new nuts must be fitted.
7 Clean the connecting rod cap and the lower half of the shell bearings. Fit the bearing to the cap, ensure that
the location tag is fitted correctly in its recess. Lubricate the bearing with clean engine lubricating oil. Fit the
cap and ensure that the assembly number is the same as that on the connecting rod and that the numbers are
on the same side. Tighten the fasteners gradually and evenly to the recommended torque of 155 Nm (114 lbf ft)
15,8 kgf m for setscrews, or 125 Nm (92 lbf ft) 12,7 kgf m for nuts.
8 Check that the crankshaft will rotate freely.
A
80
This document has been printed from SPI². Not for Resale
Part number
21855615
B
A0350
New 1000 Series
Operation 4-5
Workshop Manual, TPD 1350E, Issue 4
Continued
A0351