Engine Overhaul Manual v8 4.0 4.6
ENGINE
OVERHAUL
51
7. Fit new cruciform seals to rear main bearing
cap.
CAUTION: Seals must protrude
approximately 1.5 mm (0.05 in) above
bearing cap face, do not trim off excess
material at this stage.
8. Apply a 3 mm (0.12 in) wide bead of sealant,
Part number STC 50550 to bearing cap rear
mating face on cylinder block.
CAUTION: Ensure sealant does not enter
bolt holes.
9. Lubricate rear main bearing shell and cruciform
seals with engine oil, carefully fit rear main
bearing cap assembly; fit and tighten rear main
bearing cap bolts to 5 Nm (4 lbf.ft).
CAUTION: Ensure that engine oil does not
enter side bolt holes in bearing cap.
10. Smear new Dowty washers with engine oil and
fit to main bearing cap side bolts.
11. Fit and tighten RH then LH side bolts to 5 Nm
(4 lbf.ft) ensuring that Allen bolt is fitted to rear
main bearing cap on RH side of cylinder block
adjacent to starter motor aperture.
12. Using sequence shown, tighten bolts to:
Stage 1 - Initial torque
Main bearing cap bolts - 13.5 Nm (10 lbf.ft)
Main bearing cap side bolts - 13.5 Nm (10
lbf.ft)
Stage 2 - Final torque
Main bearing cap side bolts numbers 11 to 15 -
45 Nm (34 lbf.ft)
Main bearing cap bolts numbers 1 to 8 - 72 Nm
(54 lbf.ft)
Main bearing cap bolts numbers 9 and 10 - 92
Nm (68 lbf.ft)
Main bearing cap side bolts numbers 16 to 20 -
45 Nm (34 lbf.ft)
13. Trim off excess material from rear main
bearing cap cruciform seals.
14. Clean seal location and running surface on
crankshaft.
15. Clean seal protector LRT-12-095 and lubricate
with engine oil.
16. Lubricate oil seal lip with engine oil.