Engine — Specifications (Opel Ascona C)

Specifications

Type 4-cylinder transversely mounted in-line engine with water cooling and single overhead camshaft

Engine:	Code	Volume	Dian.	Piston stroke	Cylinder compression ratio
1.3 l	13S	1297 cm³	75.0 mm	73.4 mm	9,2:1
1.6 l	16S	1598 cm³	80.0 mm	79.5 mm	9,2:1
1.8 l	18E	1796 cm³	84.8 mm	79.5 mm	9,5:1

The firing order of the cylinders is 1-3-4-2 (cylinder N 1 is located at the timing belt cover).

Cylinder block (crankcase)

• Material - Cast Iron
• Maximum deviation of the cylinder cross-section from the round shape is 0.013 mm
• Maximum cylinder convergence on taper - 0.013 mm
• Maximum increase in cylinder size after boring is 0.5 mm

Crankshaft	1.3	1.6 and 1.8
Number of main bearings	5	5
Main journal diameter	54.972-54.985 mm	57.982-57.995 mm
Crankpin diameter	42.971-42.987 mm	48.971-48.987 mm
Repair reduction in size after boring	-0.25 and -0.50 mm	-0.25 and -0.50 mm
Axial displacement of the crankshaft	0.1-2.0 mm	0.07-0.3 mm
Main bearing working clearance	0.025-0.05 mm	0.015-0.04 mm
Connecting rod bearing working clearance	0.019-0.071 mm	0.019-0.063 mm
Lateral play of the lower connecting rod head	0.11-0.24 mm	0.07-0.24 mm

Bearing insert marking:	Upper (all engines)	Lower (all engines)
Main bearings, standard	Brown	Green
Main bearings, repair size -0.25 mm	Brown/blue	Green/blue
Main bearings, repair size -0.5 mm	Brown/white	Green/white
Connecting rod bearings, standard	No markings	No markings
Connecting rod bearings, repair size - 0.25 mm	Blue	Blue
Connecting rod bearings, repair size -0.5 mm	White	White

Camshaft

Identification code:
1.3	IN
1.6	A
1.8	IN

Axial displacement - 0.09-0.21 mm

Camshaft journal diameters:	1.3	1.6 and 1.8
N 1	39,435-39,450 mm	42.455-42.470 mm
N 2	39,685-39,700 mm	42.705-42.720 mm
N 3	39,935-39,950 mm	42.955-42.970 mm
N 4	40.125-40.200 mm	43.205-43.220 mm
N 5	40.435-40.450 mm	43.455-43.470 mm

Camshaft Bearing Diameters (right in the body):
N 1	39,500-39,525 mm	42,500-42,525 mm
N 2	39,750-39,775 mm	42,750-42,775 mm
N 3	40,000-40,025 mm	43,000-43,025 mm
N 4	40.250-40.275 mm	43.250-43.275 mm
N 5	40.550-40.525 mm	43,500-43,525 mm

Pistons and piston rings

• Type - Alloy, recessed bottom
• Number of Piston Rings - Ring End:
• Compression - 0.3-0.5 mm
• Oil scraper - 0.40-1.40 mm
• The offset of the locks of adjacent rings relative to each other is 180 degrees.

Clearance between piston pin and piston:

• 1.3 — 0.007-0.010 mm
• 1.6 and 1.8 - 0.011-0.014 mm

Piston brands - 1.3:	Diameter (mm)	Marking
Production class 1	74,93	5
	74,94	6
	74,95	7
	74,96	8
Production class 2	74,97	99
	74,98	00
	74,99	01
	75,00	02
Production class 3	75,01	03
	75,02	04
	75,03	05
	75,04	06
Production class 4	75,05	07
	75,06	08
	75,07	09
	75,08	1
Repair size (+0.5 mm)	75,45	7 + 0,5
	75,46	8 + 0,5
	75,47	9 + 0,5
	75,48	0 + 0,5

Piston brands - 1.6:	Diameter (mm)	Marking
Production class 1	79,935-79,945	5
	79,945-79,955	6
	79,955-79,965	7
	79,965-79,975	8
Production class 2	79,975-79,985	99
	79,985-79,995	00
	79,995-80,005	01
	80,005-80,015	02
Production class 3	80,015-80,025	03
	80,025-80,035	04
	80,035-80,045	05
	80,045-80,055	06
Production class 4	80,055-80,065	07
	80,065-80,075	08
	80,075-80,085	09
	80,085-80,095	1
Repair size (+0.5 mm)	80,455-80,465	7 + 0,5
	80,465-80,475	8 + 0,5
	80,475-80,485	9 + 0,5
	80,485-80,495	0 + 0,5

Piston brands - 1.8:	Diameter (mm)	Marking
Production class 1	84,735-84,745	5
	84,745-84,755	6
	84,755-84,765	7
	84,765-84,775	8
Production class 2	84,775-84,785	99
	84,785-84,795	00
	84,795-84,805	01
	84,805-84,815	02
Production class 3	84,815-84,825	03
	84,825-84,835	04
	84,835-84,845	05
	84,845-84,855	06
Production class 4	84,855-84,865	07
	84,865-84,875	08
	84,875-84,885	09
	84,885-84,895	1
Repair size (+0.5 mm)	85,255-85,265	7 + 0,5
	85,265-85,275	8 + 0,5
	85,275-85,285	9 + 0,5
	85,285-85,295	0 + 0,5

Piston clearance in cylinder:

• New engine - 0.02 mm

After boring:

• 1.3 — 0.01-0.03 mm
• 1.6 and 1.8 - 0.02-0.04 mm

Cylinder head	1.3	1.6 and 1.8
Material	Light alloy	Light alloy
Maximum permissible sealing surface information	0.025 mm	0.025 mm
Overall height of cylinder head	95.9-96.1 mm	95.75-96.25 mm
Valve seat width:
Intake	1.3-1.4 mm	1.3-1.4 mm
Graduation	1.7-1.8 mm	1.7-1.8 mm

Valves

Valve clearances - Automatically adjusted by hydraulic tappets

Clearance between valve stem and guide bushing:	1.3	1.6 and 1.8
Intake	0.02-0.05 mm	0.015-0.042 mm
Graduation	0.04-0.07 mm	0.03-0.06 mm
Valve seat chamfer angle	44 degrees.	44 degrees.
Installed height of guide bushing	80.85-81.25 mm	80,95-81,85
Valve stem diameter:
Intake	7,000-7,010 mm	7,795-7,985 mm
Graduation	6,980-6,990 mm	7,957-7,970 mm
Repair dimensions	+0.075, +0.150, +0.250 mm	+0.075, +0.150, +0.250 mm
Valve guide bushing inner diameter	7,030-7,050 mm	8,000-8,017 mm

Flywheel

Maximum thickness reduction - 0.3 mm

Lubrication system

Oil type/specification - Universal motor oil, viscosity SAE 10W/40 - 20W/50, specification API SG/CD (Duckhams QXR, QS, Hypergrade Plus or Hypergrade)

Oil pump:

• Circumferential clearance (between gears) — 0.1-0.2 mm

Clearance between gears and pump body (axial displacement):

• 1.3 — 0.08-0.15 mm
• 1.6 and 1.8 - 0.03-0.10 mm

Oil pressure at idle (engine at normal operating temperature) — 1.5 bar

System capacity (with oil filter replacement) (approximate data)

• 1.3 - 3.00 l
• 1.6 - 3.50 l
• 1.8 - 3.55 l

Oil filter:

• 1.3 (lINF mount) — Champion G103
• All other models - Champion G102

Tightening torque (Nm)

• Fastening the flywheel to the crankshaft:

1.3 — 60 1.6 and 1.8 - (in 2 stages) 50, then tighten another 25-30 degrees

• Fastening the drive disk to the crankshaft - 60

• Main bearing cap bolts:

1.3,1.6 and 1.8 - 65

• Oil pump mounting bolts - 6
• Oil pump safety valve plug - 30
• Fastening the oil filter to the engine - 15
• Oil pressure relay - 30
• Oil pump bolts - 6
• Drain plug of the pan - 45
• Pan bolts - 5
• Connecting rod bearing cap bolts:

1.3 — 28

1.6 and 1.8 - (in 2 stages) 35, then tighten another 45

Cylinder head bolts (1.3):

• Stage 1 - 25
• Step 2 - Tighten another 60 degrees.
• Step 3 - Tighten another 60 degrees.
• Step 4 - Tighten another 30 degrees.
• Step 5 - After the engine has warmed up, tighten another 30 degrees.

Cylinder head bolts (1.6 and 1.8):

• Stage 1 - 25
• Step 2 - Tighten another 60 degrees.
• Step 3 - Tighten another 60 degrees.
• Step 4 - Tighten another 60 degrees.
• Step 5 - After the engine has warmed up, tighten another 30 degrees.

Text was copied from the portal: www.OPELBOOK.ru

Camshaft Sprocket Bolt - 45

Crankshaft pulley bolt:

• 1.3 — 55
• 1.6 and 1.8 - 20

Crankshaft sprocket bolt (1.6 and 1.8):

• Stage 1 - 130
• Step 2 - Tighten another 40-50 degrees.

Starter bolts:

• 1.3 — 25
• 1.6 and 1.8 - 45

Manifold nuts and bolts:

• 1.3 — 25
• 1.6 and 1.8 - 45

• Fastening the support bracket to the engine crankcase - 50
• Fastening the engine support bracket to the transmission - 30
• Fastening engine mounts to frame - 40
• Fastening the generator bracket to the cylinder block - 40
• Fastening the fuel pump to the camshaft housing - 18
• Fastening the water pump to the cylinder block:

1.3 — 8

1.6 and 1.8 - 25