Peregrine EDi and 1300 Series EDi

Method two

1  Remove the rocker cover, see Operation 3-1.

2  Rotate the crankshaft in the normal direction of rotation until the inlet valve (C11) of number 6 cylinder has

just opened and the exhaust valve (C12) of the same cylinder has not closed fully.

3  Check the clearances of the valves (C1, C2, C3, C6, C7, and C10) and adjust them, if necessary.

4  Rotate the crankshaft in the normal direction of rotation until the inlet valve (C1) of number 1 cylinder has

just opened and the exhaust valve (C2) of the same cylinder has not closed fully.

5  Check the clearances (D) of the valves (C4, C5, C8, C9, C11, and C12) and adjust them, if necessary.

6  Fit the rocker cover, see Operation 3-2.

1

2

3

4

5

6

7

8

9

10

11

12

C

W015

'

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Peregrine EDi and 1300 Series EDi

4

Piston and connecting rod assemblies

4

General description

The aluminium alloy pistons have a cast iron insert for the top piston ring.

The two-piece pistons have an aluminium alloy skirt and a steel piston crown. The steel crown compensates

for increased combustion pressures, and can be removed from the piston skirt, when the piston assembly is

dismantled.

Both types of piston have recesses in the crown to allow clearance for the inlet and exhaust valves. The

combustion bowl is off-centre.

A variation in the aluminium alloy along the length of the piston skirt controls expansion of the piston.

Each piston has two tapered compression rings and an oil control ring. The grooves for the piston rings have

the same shape as their rings. The top compression ring is marked "TOP-UP" on its upper face, the second

compression ring is marked “2nd-UP” on its upper face. The oil control ring is not marked, and new rings may

be fitted either way up. The top compression ring has a round edge, the edge of the second compression ring

is at an angle.

Combustion pressure is allowed to pass through the ring gaps to the underside of the compression rings. This

maintains the correct contact between the face of the piston rings and the cylinder bore, to improve

performance and reduce oil loss.

Axial location of the fully floating gudgeon pin is by circlips.

The connecting rods are "H" section forgings of steel. The small end is wedge shaped to improve strength and

reliability. The overall length of the connecting rod is reduced by an angle of tilt to the big end bearing.

Jets fitted in the cylinder block spray lubricating oil onto the inner surface of the piston to cool the piston.

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Peregrine EDi and 1300 Series EDi

Big end bearing

To remove

Operation 4-1

1  Drain the engine lubricating oil.

2  Remove the lubricating oil sump, see Operation 10-9.

3  Remove the lubricating oil strainer and suction pipe, see Operation 10-11.

4  Rotate the crankshaft until access to the relevant connecting rod setscrews is possible.

5  Remove the setscrews from the connecting rod.

6  Remove the bearing cap (A) together with the lower shell-bearing.

7  Carefully push the connecting rod up the cylinder bore (B), just enough to allow access to the upper shell-

bearing.

8  Remove the upper half of the shell bearing from the connecting rod. Keep the bearings of the connecting

rods and caps together, for correct assembly.

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2

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B

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Peregrine EDi and 1300 Series EDi

To fit

Operation 4-2

1  Clean the bearing faces of the connecting rod and the crank pin. Clean the threads of the connecting rod

and the threads of the setscrews.

2  Clean the complete bearing and lubricate the bearing surface and the crank pin with clean engine lubricating

oil.

3  Fit the upper half of the shell bearing to the connecting rod, ensure that the locating tag is fitted correctly in

its recess.

4  Fit the connecting rod to the crankpin; ensure that the short side (B1) of the connecting rod is toward the

camshaft side of the engine.

5  Fit the lower shell-bearing into the cap, ensure that the locating tag (A2) is fitted correctly in its recess.

6  Lubricate lightly the threads and the thrust faces of the setscrews with clean engine lubricating oil.

7  Hold the bearing cap in position on the connecting rod. Ensure that the assembly number on the cap is the

same as the number on the connecting rod and that both of the assembly numbers are on the same side (A1).

Caution: Do not try to recondition the threads in the connecting rod. If the threads are damaged, renew the

connecting rod.

8  Fit the setscrews by hand. If they do not fit freely by hand, fit new setscrews. If the new setscrews do not fit

freely by hand, renew the connecting rod.

9  Tighten the setscrews gradually and evenly to 156 Nm (115 lbf ft) 15,9 kgf m.

10  Ensure that the crankshaft rotates freely.

11  Fit the lubricating oil strainer and suction pipe, see Operation 10-11.

12  Fit the lubricating oil sump, see Operation 10-10.

13  Fill the sump to the correct level with lubricating oil of an approved grade, see Chapter 5 in the User’s

Handbook.

1

1

2

190

4

5

190

A

B

W082

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Peregrine EDi and 1300 Series EDi

To inspect

Operation 4-3

Check the bearings and the crank pin for wear or other damage.

Measure the crank pins and compare the measurements with those given in the relevant Data and dimensions

for the "Crank pins" on page 14.

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Peregrine EDi and 1300 Series EDi

Piston and connecting rod assembly

To remove

Operation 4-4

1  Drain the lubricating oil.

2  Drain the cooling system.

3  Remove the cylinder head assembly, see Operation 3-8.

4  Remove all carbon from the top of the bores of the cylinder liners.

5  Remove the lubricating oil sump, see Operation 10-9.

6  Remove the lubricating oil strainer and suction pipe, see Operation 10-11.

7  Remove the setscrews (C5) for the big end bearing cap and remove the big end bearing cap (A).

8  Push the piston and the connecting rod assembly (B) out through the top of their cylinders.

190

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5

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A

B

W082/1

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9  Put the shell-bearings (C2 and C3) and the bearing cap (C4) with the piston and connecting rod (C1)

assembly; mark the components to ensure that they are returned to the correct cylinder.

10  Inspect the crank pin for damage.

1

4

2

3

5

6

C

W079

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Peregrine EDi and 1300 Series EDi

To fit

Operation 4-5

Caution: If the original piston is used, ensure that it is assembled to the correct connecting rod and that it is

used in the original cylinder.

1  Ensure that the piston, the cylinder bore, the crank pin and the big end of the connecting rod is clean.

2  Clean the threads of the connecting rod (B1) and the threads of the setscrews (B5).

3  The piston has drain holes for the lubricating oil, check that these holes are free of debris.

4  Lubricate the piston and the cylinder liner with clean engine lubricating oil.

5  Rotate the crankshaft until access to fit the connecting rod setscrews is possible.

6  Clean the shell bearings (B2 and B3) and lubricate the bearing surface and the crank pin with clean engine

lubricating oil.

7  Fit the upper shell-bearing (B2) to the connecting rod, ensure that the locating tag is fitted correctly in its

recess.

8  Put the piston ring gaps 120° apart and compress the rings with a suitable tool.

9  Pass the connecting rod and piston assembly into the cylinder. Ensure that the “camside” mark on the piston

crown is towards the camshaft side of the engine.

10  Push the piston and connecting rod assembly through the piston ring clamp and onto the crank pin. Ensure

that the short side (Operation 4-2/B1) of the connecting rod is towards the camshaft side of the engine.

11  Fit the lower shell-bearing onto its cap, ensure that the locating tag is fitted correctly in its recess (A2).

12  Lubricate lightly the threads of the setscrews with clean engine lubricating oil.

13  Hold the bearing cap in position on the connecting rod. Ensure that the assembly number on the cap is the

same as the number on the connecting rod and that both of the assembly numbers are on the same side (A1).

Caution: Do not try to recondition the threads in the connecting rod. If the threads are damaged, renew the

connecting rod, .

1

4

2

3

1

2

5

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190

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5

6

A

B

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Continued

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Peregrine EDi and 1300 Series EDi

14  Fit the setscrews by hand. If they do not fit freely by hand, fit new setscrews. If the new setscrews do not

fit freely by hand, renew the connecting rod.

15  Tighten the setscrews gradually and evenly to 156 Nm (115 lbf ft) 15,9 kgf m.

16  Ensure that the crankshaft rotates freely.

17  Check the side clearance of the connecting rod big-end. Refer to the relevant Data and dimensions for the

"Connecting rods" on page 13.

18  Fit the lubricating oil strainer and suction pipe, see Operation 10-11.

19  Fit the lubricating oil sump, see Operation 10-10.

20  Fit the cylinder head assembly, see Operation 3-9.

21  Fill the sump to the correct level with lubricating oil of an approved grade, see Chapter 5 in the User’s

Handbook.

22  Fill the cooling system.

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