Engine — complete disassembly (Opel Ascona C)

1. Remove the engine and move it to the work bench.

2. Following the instructions in the previous sections, remove the following from the engine:

• a. camshaft timing belt
• b. cylinder head
• v. pallet
• g. oil pump with oil intake pipe
• d. pistons and connecting rods
• e.clutch and flywheel.

3. Turn the engine over so that it rests on the top surface of the cylinder block.

4. The main bearing caps are numbered from 1 to 4 (starting from the camshaft belt side). Back cover (from the flywheel side) does not have a number. In order to install the covers correctly when assembling the engine, remember that when the crankcase is turned over, the numbers on the covers are read from the water pump side (see photo).



5. Unscrew and remove the cover bolts and remove the covers. If you are not going to replace the bearing shells, they should be placed in their respective covers. The standard inserts are color-coded and should return to their original locations when reused.

6. Note that the center bearing shell has thrust flanges to control the axial movement of the crankshaft.



7. Remove the crankshaft from the crankcase. Remove the top halves of the liners and mark them if you are not going to replace them.

8. For disassembling the cylinder head and cleaning it and the pistons from carbon deposits, see. v section 30. Removing the camshaft see. v section 9.

9. Loosen the bolts and remove the rear camshaft belt shield.

10. The rubber plug located next to the clutch housing flange on the engine crankcase covers the hole for installing the TDC sensor. This sensor determines the TDC position based on the position of the contact pins installed on the crankshaft counterweight.