TD5 Defender Engine Crankshaft Information Page - Maintenance Tips
ENGINE
37
OVERHAUL
6. Fit 2 slave bolts into each main bearing cap in
turn and ease bearing caps from cylinder block.
7. Remove and discard bearing shells from each
cap.
NOTE: These bearing shells are plain.
8. Using assistance, remove crankshaft.
9. Remove and discard main bearing shells and 2
thrust washers from cylinder block.
NOTE: These bearing shells are grooved.
10. Remove Torx screw securing each oil squirt jet
to cylinder block, remove squirt jets.
Cylinder block - Inspection
1. Clean main bearing shell and thrust washer
locations in cylinder block, ensure bolt holes are
clean and dry.
2. Clean main bearing caps.
3. Clean crankshaft bearing journals, check oilways
are clear.
4. Ensure drillings in oil squirt jets are clear.
5. Check core plugs in cylinder block for corrosion
or signs of leakage, seal replacement plugs with
Loctite 243.
Crankshaft - Inspection
1. Check crankshaft main and big-end bearing
journals for scoring, wear and ovality, make 3
checks at 120
°
intervals in centre of journals.
Crankshaft bearing journal diameters:
Main bearings =
62.000 mm
±
0.013 mm (2.441 in
±
0.001 in)
Big-end bearings =
54.000
±
0.01 mm (2.125
±
0.0004in)
CAUTION: Crankshafts may not be
reground, only one size of main and
big-end bearing shell is available and if
journals are found to be scored, oval or worn,
crankshaft must be replaced. Main and big-end
bearing shells and thrust washers must be
replaced whenever they are removed.