Technical specifications

Main settings

Engine designation - 1.8 ONS

Engine's type:

• naturally aspirated - RTE, RTF.
• turbocharged - RFD.

Cylinder diameter - 82.5 mm.

Piston stroke - 82 mm.

Displacement - 1753 cm³

Compression ratio - 2.8 - 3.4 MPa.

Rated power

• motors RTE, RTF - 44 kW (60 HP) at 4800 rpm
• RFD motors - 66 kW (90 HP) at 4500 rpm

Max Torque

• RTE engines. RTF - 110 Nm at 2500 rpm
• RFD motors - 178 Nm at 2000 rpm

Cylinder head

Attention Regrinding of a head of the block of cylinders is not allowed.

Permissible flatness of the lower surface of the cylinder head - 0.061 mm

Camshaft bearing bore diameters:

• nominal - 30.500 - 30.525 mm
• repair - 30.575 - 30.600 mm

Pusher socket hole diameters:

• nominal - 35.000 - 35.030 mm
• repair - 35.500 - 35.530 mm

Gap of pushers in guide bushings - 0.015-0.030 mm
Valve guide bore diameters:

• nominal - 8.000 - 8.035 mm
• repair - 8.263 - 8.288 mm

Diameters of nests of vortex combustion chambers (pic. 2E.19):

• nominal
  • size A - 31.250 - 31.280 mm
  • size B - 27.530 - 27.660 mm

• repair
  • size A - 31.550 - 31.580 mm
  • size B - 27.830 - 27.960 mm

Height of nests of vortex combustion chambers (C, fig. 2E.19):

• nominal - 4.983 - 5.034 mm
• repair - 5.233 - 5.284 mm

Cylinder head gasket

The thickness of the cylinder head gasket is selected depending on the protrusion of the pistons above the upper plane of the cylinder block, and the value of the most protruding piston is taken into account. The thickness of the gasket is identified by the corresponding designation.

• for cylinder blocks with nominal cylinder diameters - the gasket has cutouts
• for cylinder blocks with overhaul cylinder diameters (+0.5 or +1.0) - gasket has a hole

Piston protrusion (mm)	nominal	repair
0.500 — 0.680	2 cutouts	2 holes
0.681 — 0 740	3 cutouts	3 holes
0.741 — 0.840	4 cutouts	4 holes

Installation Method - The cylinder head gasket is installed with the inscription "OBEN-TOP" towards the head (up).

Combustion chambers

Chamber type - vortex Ricardo Comet Mark V

The protrusion of the combustion chambers from the lower plane of the cylinder head - 0-0.061 mm

Valve seat dimensions (pic. 2E.20)

Inlet valve:

• Nominal
  • size A - 38.00-38.03 mm
  • size B - 8.3-8.5 mm

• Repair 1
  • size A - 38.20-38.23 mm
  • size B - 8.6-8.8 mm

• Repair 2
  • size A - 38.40-38.43 mm
  • size B - 8.9-9.1mm

Exhaust valve:

• Nominal:
  • size A - 33.00-33.03 mm
  • size B - 8.8-9.0 mm

• Repair 1:
  • size A - 33.20-33.23 mm
  • size B - 9.1-9.3 mm

• Repair 2:
  • size A - 33.40-33.43 mm
  • size B - 9.4-9.6 mm

Valve springs

The springs are the same for both intake and exhaust valves.

Free length - 43 mm

Valves

Inlet valve:

• Valve length - 107.05 - 107.15 mm
• Valve disc diameter - 36.40 - 36.60 mm

Valve stem diameter:

• nominal - 7.82 - 7.97 mm
• 1. Repair - 8.02 - 8.17 mm
• 2. Repair - 8.22 - 8.37 mm

Exhaust valve:

• Valve length 109.15 - 109.25 mm
• Valve disc diameter - 31.90 - 32.10 mm

Valve stem diameter:

• nominal - 7.81 - 7.96 mm
• 1 Repair - 8.01 - 8.16 mm
• 2 Repair - 8.21 - 8.36 mm

Valve clearance (cold)

Inlet valve clearance - 0.35±0.05 mm


Exhaust valve clearance - 0.50±0.05 mm

Adjusting the valve clearance by selecting the thickness of the adjusting plates located in the recess of the pushers.

Adjustment plate thickness range 3.00 - 4.75 mm

The difference in the thickness of the adjusting plates is 0.05 mm

Pushers

Outside diameter:

• nominal - 34.950 - 34.975 mm
• repair - 35.450 - 35.475 mm

Engine block

Cylinder block designation - LR 27108

Cylinder diameters:

• nominal:
  • group A - 82.500-82.515 mm
  • group B - 82.515-82.530 mm
  • group C - 82.660-82.675 mm
  • group D 82.675-82.690 mm

• repair:
  • + 0.5 - 83.000-83.015 mm
  • + 1.0 - 83.500-83.515 mm

The diameter of the holes of the nests of the main bearing shells is 53.683-53.696 mm

Crank mechanism

Crankshaft

Diameter of main journals:

• nominal - 53.970-53.990 mm
• repair -0.25 - 53.720-53.740 mm
• repair -0.50 - 53.470-53.490 mm

Crankpin diameter:

• nominal - 48.970-48.990 mm
• repair -0.25 - 48.720-48.740 mm
• repair -0.50 - 48.470-48.490 mm

Middle main bearing width:

• nominal - 31.69-31.75 mm
• repair - 32.07-32.13 mm

The radial clearance of the main bearings of the crankshaft - 0.015-0.062 mm

Axial clearance of the crankshaft - 0.093-0.306 mm

Maximum friction torque in the crankshaft main bearings (without installed components piston - connecting rod) - 10 Nm

Main bearing shells

As spare parts, nominal and repair inserts are supplied, reduced by 0.25 mm and 0.50 mm.

Connecting rods

Connecting rods are made with four distances between the axes of the holes of the head and the base to provide one degree of compression in all cylinders of the engine "A". "IN". "WITH" And "D". applied on the side surface of the connecting rod caps, determine the selective group of the distance between the axes of the holes of the head and base. Connecting rod installation method relative to cylinder block letter "F. printed on the side surface of the connecting rod, must be located on the drive side of the gas distribution system.


Connecting rod bearing shell hole diameter - 52.000-52.020 mm

The diameter of the hole in the bushing of the connecting rod head is 26.012-26.020 mm

The distance between the axes of the holes of the head and the base of the connecting rod:

• group A - 129.880-129.940 mm
• group B - 129.941-130.000 mm
• group C - 130.011-130.060 mm
• group D - 130.061-130.120 mm

Connecting rod bearing shells

Nominal and repair inserts are supplied as spare parts: reduced by 0.25 mm and 0.50 mm.

Pistons

Engines RTE, RTF

Piston diameters (measured at right angles to the axis of the piston pin):

• nominal:
  • group A - 82.460-82.475 mm
  • group B - 82.475-82.490 mm
  • group C - 82.620-82.635 mm
  • group D - 82.635-82.650 mm

• repair
  • group E (+0.5 mm) - 82.961-82.979 mm
  • group F (+1.0 mm) - 83.461-83.479 mm

• Piston clearance in cylinder
  • groups from A to D - 0.025-0.055 mm
  • groups E and F - 0.021-0.054 mm

The protrusion at TDC of the piston bottom above the upper plane of the cylinder block is 0.50-0.84 mm.

RFD motors

Piston diameters (measured at right angles to the axis of the piston pin):

• nominal, group A - 82 461-82.479 mm
• nominal, group B - 82.476-82.494 mm
• nominal, group C - 82.621-82.639 mm
• nominal, group D - 82.636-82.654 mm

Piston pins:

Install the circlips in the piston groove, cut side up.

Pin outer diameter - 25.996-26.000 mm

Piston rings

Installation method inscription "Thor" (top) directed towards the bottom of the piston.

Castle Width (incision) ring located in the cylinder:

• top ring (sealing) - 0.35-0.50 mm
• middle ring (sealing) - 0.35-0.50 mm
• bottom ring (oil scraper) - 0.25-0.45 mm

Piston groove clearance:

• top ring (sealing) - 0.090-0.122 mm
• middle ring (sealing) - 0.050-0.082 mm
• bottom ring (oil scraper) - 0.030-0.065 mm

Flywheel

• Radial runout - 0.13 mm
• Number of crown teeth - 135

Gas distribution system

Valve timing (measured at valve clearance)

• OZD - 6°before TDC
• ZZD - 32°after BDC
• OZW - 57°before BDC
• ZZW - 7°after TDC

OZD and ZZD - opening and closing of the intake valve, respectively; OZW and ZZW - respectively, the opening and closing of the exhaust valve.

Camshaft

Engines RTE, RTF

Valve lift:

• intake - 10 mm
• graduation - 9 mm

Axial play - 0.1-0.2 mm

Bearing neck diameter - 27.960-27.980 mm

Camshaft bearing clearance - 0.020-0.079 mm

RFD motors

Valve lift:

• intake 9 mm
• graduation 10 mm

Axial play - 0.1-024mm

Toothed belt:

Brand - Motorcraft 89 FF GK 288-AB

The tension is adjusted automatically by a roller tensioner.

Replacement frequency - every 60,000 km

Lubrication system

Oil pump

Oil pressure (at 100°С)

• at 750 rpm - 0.075MPa
• at 2000 rpm - not less than 0.15 MPa

Bypass valve opening pressure 0.2 - 0.4 MPa

Oil filter

Make and type - Motorcraft EFL 344

Replacement interval - every 10,000 km

Engine oil

Quantity - 4.5 dm³ (with 0.4 dm³ in the filter)

Type multigrade oil according to API SG/CD viscosity according to SAE 10W30, 15W40 or 20W50

Replacement frequency (with filter) - every 10,000 km

Cooling system

Expansion tank

The opening pressure of the double-acting valve in the plug of the expansion tank is 120 kPa

Thermostat

Opening start temperature - 85°-89°С
Full opening temperature 102±3°С

Coolant

Quantity - 9.3 dm³

Type - a mixture of 60% distilled water and 40% special Motorcraft anti-freeze mixture with the designation Ford SSM 97 V 9103 A

The replacement interval is every 4 years.

Fuel system

Fuel filter - Brand and type Ford EFG 3

Air filter - Make and type Motorcraft EFA 18

Fuel pump

Brand and type - Bosch VER 285 or CAV Roto diesel F 18 INA 01.

Idling speed 840-870 rpm.

Max RPM (without load) 5350±50 rpm

injection sequence (cylinder No. 1 from the drive side of the gas distribution system) - 1 — 3 — 4 — 2.

Installing the pump - using an installation tool.

RFD engine fuel pump since 1991

Brand and type - Lucas Diesel 8344 V 795 D

Number of turns of idling - 900±100 rpm.

Max RPM (without load) - 4800 rpm.

injection sequence (cylinder No. 1 from the drive side of the gas distribution system) - 1 — 3 — 4 — 2

Installing the pump - using an installation tool.

RFD engine fuel pump since 1994

Make and type - Lucas DPC F18 ITCI20

Idling speed - 820-850 rpm.

Max RPM (without load) - 5350±50 rpm.

injection sequence (cylinder No. 1 from the drive side of the gas distribution system) - 1 — 3 — 4 — 2.

Installing the pump - using an installation tool.

Nozzles

Injectors - Bosch or CAV RotoDiesel
Atomizer type - Pmteau
Nozzle opening pressure:

• Bosch 13.5-14 0 MPa
• CAV RotoDiesel 12.0-13.5 MPa

Tightness test - no fuel leakage for 10 seconds under a pressure of 12 MPa

Pressure drop time in the range of nominal injection pressures - 5 - 40 seconds

Glow plugs

Type - rod

Heating temperature - 1150"WITH

Brand - Bosch 0250 202 018 or Ford EZD 8

Engine Glow Plugs - FORD EDC.

So-called pencil glow plugs are used (small diameter)

Make and type - Motorcraft EZD 8 or Vega 666 MJ

Working temperature - 1150"WITH

Resistance - 0.25 Ohm

Electronic engine control FORD EDC

Acceleration Lever Position Sensor

Brand and type - Lucas 419131-94-300

Resistance between pins 1 and 2:

• at idle - 5000 Ohm
• at full load - 1000 Ohm

Resistance between pins 1 and 3 (at idle) - 3300-5000 Ohm

Coolant temperature sensor

Make and type - Ford F2AF-12A648-AA

Sensor resistance:

• at 10°С - 58 kOhm
• at 20°С - 37 kOhm
• at 30°С - 24 kOhm
• at 40°С - 16 kOhm
• at 50°С - 11 kOhm
• at 60°С - 7 kOhm

Solenoid vacuum valve:

• Make and type - Ford 92VB-9E882-AB
• Resistance - 4-7 Ohm
• Operating frequency - 140 Hz

Cold engine injection advance corrector:

• Make and type - Lucas 4410-151294
• Resistance - 65-160 Ohm

Cold injection advance relay:

• Make and type - Ford B74PG-93BG14N089AA
• Control loop resistance (between pins 85 and 86) - 75 0m

Injection advance corrector at low engine loads:

• Brand and type - Lucas V12M-08M
• Resistance - 13-18 Ohm

Tightening torques

Bolts of fastening of a head of the block of cylinders (every time new bolts)
- Stage 1	20-30 Nm
- Stage 2	76-92 Nm
- Stage 3	wait 2 minutes
- stage 4	tighten by 90°
Cylinder head bolts on engines from 03.92
- Stage 1	10 Nm
- Stage 2	100 Nm
- Stage 3	wait 3 minutes
- stage 4	unscrew the bolts sequentially by 180°
- Stage 5	tighten with torque 70 Nm
- stage 6	screw in sequence by 120°
Camshaft bearing caps	16-22 Nm
Main bearing caps
- Stage 1	20-30 Nm
- Stage 2	tighten by 45°
Main bearing caps on engines from 03.92
- Stage 1	27 Nm
- Stage 2	screw in 75°
Connecting rod caps
- Stage 1	20-30 Nm
- Stage 2	tighten by 60°
- Stage 3	tighten by 20°
Flywheel
- Stage 1	15-20 Nm
- Stage 2	tighten by 45°
- Stage 3	tighten by 45°
Countershaft pulley	40-51 Nm
Fuel pump pulley	20-25 Nm
Fuel pump timing belt tensioner	40-57 Nm
Camshaft Pulley
- M6 bolt	8-10 Nm
- M8 bolt	27-33 Nm
Camshaft Timing Belt Tensioner	45-55 Nm
Back cover to the block of cylinders	16-21 Nm
Front cover to cylinder block	20-28 Nm
Oil pump to cylinder block	20-25 Nm
intermediate shaft seal	20-25 Nm
oil pan	6-9 Nm
Fuel pump	18-22 Nm
cylinder head cover	3-4 Nm
glow plugs	25-30 Nm
Injectors to cylinder head	60-80 Nm
Nozzle pipe connections	15-25 Nm
Intake and exhaust manifolds to cylinder head	10-14 Nm
Attaching the turbocharger to the exhaust manifold	38 Nm
Mounting of the exhaust gas recirculation valve	20-25 Nm