Piston assemblies - engine set (page 3 of 3)

ENGINE - V8

OVERHAUL 12-2-75

8. Fit oil control ring rails and expander, ensuring 

ends butt and do not overlap.

9. Fit 2nd compression ring with 'TOP' marking 

upwards.

10. Fit 1st compression ring with 'TOP' marking 

upwards.

11. Check piston ring to groove clearance.

 + 

 GENERAL DATA, Engine - V8.

12. Check fit of gudgeon pin in piston, pin must be 

a tight, sliding fit with no perceptible side play.

13. Check small-end bushes for wear, check that 

gudgeon pin is a sliding fit in the bush with no 
perceptible side play. Small end bushes 
cannot be replaced, a new connecting rod 
must be fitted.

14. Check parallelism of connecting rods on both 

sides taking the measurement approximately 
150 mm from the centre line of the connecting 
rod 
 

 + 

 GENERAL DATA, Engine - V8.

15. Check for distortion on both sides of connecting 

rod.

Reassembly

1. Clean cylinder bores, pistons, piston rings and 

connecting rods.

2. Fit each piston to its connecting rod ensuring 

that the arrow on the piston which points to the 
front of the engine is relative to the mark made 
on the connecting rod during disassembly.

3. Lubricate gudgeon pins and bushes with 

engine oil, fit gudgeon pins and secure with 
new retaining rings ensuring that they are fully 
seated in their grooves.

4. Lubricate pistons, piston rings and cylinder 

bores with clean engine oil.

5. Check that piston rings are free to rotate, 

position ring gaps at 120

°

 to each other and 

away from the thrust side - LH side of piston - 
viewed from front of piston.