Perkins — To fit the big end bearing and connecting rod cap
Repair & overhaul
From a Perkins service manual — check it applies to your exact model before use.
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Before you start
- Do not allow the connecting rod to hit the piston cooling jet
Procedure
- Clean and lubricate bearing surfaces and crank pin
- Fit upper half shell bearing to connecting rod with location tag in recess
- Fit connecting rod to crank pin with assembly numbers on same side
- Fit lower half shell bearing to cap; fit cap with matching assembly numbers
- Tighten fasteners gradually and evenly
- Ensure crankshaft rotates freely
Specs & values
- Setscrews 155 Nm (114 lbf ft) 15,8 kgf m
- Nuts 125 Nm (92 lbf ft) 12,7 kgf m
Source: Perkins service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.