PRE-RELEASE
Pistons with connecting rods, in car
| Pistons with connecting rods, in car |
| To remove |
| 1. |
Remove
Cylinder head in car, Z19DTH
|
|
| 2. |
Fit the right-hand engine mounting.
|
|
| 3. |
Fit the right-hand engine pad.
|
|
| 4. |
Remove
KM 6313 Centring fixture, subframe - engine
.
|
|
| 5. |
Remove
Oil sump in car.
|
|
| 6. |
Remove the oil suction pipe.
|
|
| 7. |
Make a note of the marking on the connecting rods and bearing caps so they can be refitted in their original positions. Remove the connecting rod bearing caps. Slide the pistons and connecting rods out of the cylinder bores of cylinders 2 and 3.
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|
| 8. |
Rotate the crankshaft a 1/2 turn. Note the markings on the connecting rods and bearing caps so they can be refitted in their original positions. Remove the connecting rod bearing caps. Slide the pistons and connecting rods out of the cylinder bores in cylinders 1 and 4.
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| To fit |
| 1. |
Fit the bearing shells in connecting rods and bearing caps.
|
|
| 2. |
Place the piston rings as illustrated. The piston ring gaps must be positioned at 120° to each other.
|
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| 3. |
Lubricate the cylinder bore and piston with engine oil.
|
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| 4. |
Compress the piston rings with
83 95 915 Piston ring compressor, universal
. Fit the pistons in cylinders 1 and 4. The recess in the piston must be facing the piston cooling nozzle.
|
|
| 5. |
Fit the bearing caps with the marks facing the marks on the connecting rods.
Tightening torque 25 Nm +60° (18 lbf ft +60°) 
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| 6. |
Turn the crankshaft a 1/2 turn.
|
|
| 7. |
Compress the piston rings with
83 95 915 Piston ring compressor, universal
. Fit the pistons in cylinders 2 and 3. The recess in the piston must be facing the oil nozzle.
|
|
| 8. |
Fit the bearing caps with the marks facing the marks on the connecting rods.
Tightening torque 25 Nm +60° (18 lbf ft +60°) 
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|
| 9. |
If the piston or connecting rod has been changed
: Measure the height of the pistons, see
Measuring piston height
.
|
|
| 10. |
Fit the oil suction pipe.
|
|
| 11. |
Fit
Oil sump in car
.
|
|
| 12. |
Fit
KM 6313 Centring fixture, subframe - engine
.
|
|
| 13. |
Remove the right-hand engine pad.
|
|
| 14. |
Remove the right-hand engine mounting.
|
|
| 15. |
Fit
Cylinder head in car, Z19DTH
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