Operation 5-4 To check crankshaft end-float

In service, a partially finished small-end bush is available, which can be fitted to the original connecting rod and machined to obtain the correct length grade, see Operation 4-14. Specialist equipment and personnel with the correct training are needed to machine the partially finished small-end bush. Connecting rod kits are also available with the small end bush fitted and machined to obtain the correct connecting rod grade. For further information refer to your nearest Perkins Dealer/Distributor.

Notes:

If the crankshaft or the cylinder block is to be renewed, it may be necessary to change the grade of the connecting rods, see Operation 4-11. This will occur if the correct piston height above the cylinder block face cannot be maintained with the original connecting rod assemblies, see Operation 4-6. Always use the engine identification number to order new parts. The connecting rod is a one-piece forging that is fractured hydraulically to split the big end cap from the connecting rod. This process produces rough but accurately matched surfaces (C1).

C

1

U1144/1