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SC213 Diesel Engines
PISTON
The Pistons are of special light aluminium alloy with a
re-entrant bowl in the crown. They are secured to the
connecting rods by means of fully floating gudgeon pins
which work in thin wall steel backed bronze lined bushes
fitted in the small ends of the connecting rods.
The connecting rod big end bearings are of the
thin wall type consisting of a thin steel shell lined with
aluminium tin.
DISASSEMBLY
To Remove Pistons and Connecting Rods
1. Drain the coolant and engine oil.
2. Disconnect air intake manifold, Exhaust manifold
and coolant pipe connections
3. Remove cylinder head assembly.
4. Remove the sump. (Fig. M.2)
5. Turn the engine until the connecting rod is at
bottom centre. Remove bolts and nuts securing the
connecting rod cap.
6. Remove the connecting rod cap and both top and
bottom half bearing shells.
7. The piston and connecting rod can then be pushed
out through the top of the cylinder block.
8. Keep all pistons, connecting rods, caps, bearing
shells, bolts and nuts together as separate
assemblies.
NOTE: Keep the bearing in order with their corresponding
connecting rods (according to cylinder numbers) for proper
reassembly.
Remove Gudgeon Pins
Remove the circlips from the pistons, using a long
nosed plier and push the pin from one end. The gudgeon
pins can now be pushed out and the connecting rod can
be separated from the pistons. (Fig.M.5)
Fig: M.1
Fig: M.2
Fig: M.3
Fig: M.4
Section M
PISTONS AND CONNECTING RODS
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