Alfa Romeo1987–1992Technical specifications

164 2.5 Turbo: Technical specifications

Workshop data for the 2.5-litre diesel (engine code VM84A). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Summary

Match the engine code (VM84A) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Alfa Romeo
Model: 164
Years: 1987–1992
Fuel: Diesel
Engine code: VM84A

Performance & efficiency

Power: 84 kW (114 hp)
Engine size: 2,500 cc
Cylinders: 4 · OHV

Fluids & capacities

Engine oil (with the filter): 6.4 litres

All 105 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHV
Capacity cc	2500

Injection system

Fuel/injection pump assembly Make	Bosch
Fuel/injection pump assembly Type	VE 4
Fuel/injection pump assembly Part No.	0 460 404 050
Fuel/injection pump assembly Part No.	0 460 404 065
Pump type	Rotary
Fuel feed/lift pump delivery pressure bar	0,2
Injector nozzle Make	Bosch
Nozzle and holder assembly Part No.	0 432 297 047
Nozzle opening pressure - new/used bar	155/140
Leak rate (dribble) bar/secs	127/-

Injection sequence

The injection sequence for the Alfa Romeo 164 2.5 Turbo (1987–1992) is 1-3-4-2.

Injection sequence	1-3-4-2

Valve clearances

Valve clearances for the Alfa Romeo 164 2.5 Turbo (1987–1992) are 0,30 mm inlet and 0,30 mm exhaust, measured cold.

Valve clearance - INLET mm	0,30 cold
Valve clearance - EXHAUST mm	0,30 cold

Engine oil & fluids

Engine oil

The Alfa Romeo 164 2.5 Turbo (1987–1992) takes 6.4 litres of engine oil with the filter.

See the reference table for the complete engine oil entries and their conditions.

Manual gearbox

The manual gearbox has a listed capacity of 1.8 litres. The specified oil is SAE 75W-90.

Coolant

The listed total cooling-system capacity is 8.0 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	All temperatures
Engine oil grade SAE	5W-40 Synthetic
Engine oil classification API/ACEA	CF/B3
Ambient temperature range	-15°C➞
Engine oil grade SAE	10W-40 Synthetic
Engine oil classification API/ACEA	CF/B3
Engine with filter(s) litres	6.4
Other lubricants and capacities
Manual transmission oil grade SAE	75W-90
Manual transmission litres	1.8
Cooling system - total capacity litres	8.0
Brake fluid Type	DOT 4
Brake fluid litres	0.7
Power steering fluid Type	Dexron II
Power steering fluid litres	0.9

Brakes & wear limits

Brake disc thickness

Brake discs on the Alfa Romeo 164 2.5 Turbo (1987–1992) are replaced at a minimum thickness of 20,2 mm (ventilated) front and 9 mm rear.

Minimum disc thickness for replacement - ventilated Front	20,2 mm
Minimum disc thickness for replacement Rear	9 mm

Brake disc and drum dimensions

Disc runout Front	0,15 mm
Disc runout Rear	0,15 mm
Minimum pad thickness Front	1,5 mm
Minimum pad thickness Rear	1,5 mm
Parking brake travel No. of notches	2-4

Service & electrical

Battery

The Alfa Romeo 164 2.5 Turbo (1987–1992) uses a 12 V, 90 Ah battery (reserve capacity 160 minutes).

Battery V/RC(Ah)	12/160 (90)

Glow plugs

Glow plugs for the Alfa Romeo 164 2.5 Turbo (1987–1992): Beru 657 MJ, Bosch 0 250 201 012, Champion CH70 and Lucas/CAV HDS267.

Glow plug nominal rating V/A	11/13
Glow plug activation time secs	10 Max
Glow plug - part no. Beru	657 MJ
Glow plug - part no. Bosch	0 250 201 012
Glow plug - part no. Champion	CH70
Glow plug - part no. Lucas/CAV	HDS267

Tuning and emissions

Plunger travel (pump) mm ABDC	0,80-0,85
Crankshaft position (n = ATDC) °BTDC	—
Adjusting method Engine/Pump	Pointer/Dial gauge
Dynamic timing v = BTDC, n = ATDC	v
- Time Trac Stanadyne, Snap-on °/rpm	9,5/900
- Tecnotest °/rpm	10±1/850±50
Idle speed rpm	900±25
Rated no load speed rpm	4200±150
Oil temperature °C	80
Idle speed - for smoke test rpm	750-850
Governed speed range - for smoke test rpm	4550-4750
Maximum time at governed speed secs	1,0
Test mode A/B	B
Probe type 1/2	1
Conditioning Accelerations/rpm	2-3
Smoke opacity - EU limit m-1 (%)	3,00 (73)
Smoke opacity - homologation value m-1 (%)	1,50 (48)

Starting and charging

Starter motor Make	Bosch
Maximum cranking amps A	243-297
Alternator Make	Bosch
Alternator Type	0 120 484 007
Alternator output A/V/rpm	85/14/3000
Regulated voltage V	14,4

Service checks and adjustments

Compression pressure bar	21-22
Oil pressure bar/rpm	3,9-5,4/5000
Radiator cap bar	0,60-0,80
Thermostat opens °C	81-85
Drive belt size - alternator mm	9,5x838

Tightening torques

Cylinder head
Cylinder head instructions	—
View more information	—
Renew bolts	No
Other engine tightening torques
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	23 Nm
Main bearings Stage 2	43-48 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	40 Nm
Big end bearings Stage 2	79-84 Nm
Oil pump to cylinder block	25 Nm
Sump bolts	10 Nm
Sump drain bolt	78 Nm
Flywheel/driveplate	108 Nm
Clutch pressure plate	9-25 Nm
Crankshaft pulley/damper centre bolt	127 Nm/176 Nm
Camshaft/rocker cover	15 Nm
Inlet manifold to cylinder head	30 Nm
Exhaust manifold to cylinder head	30 Nm
Injector/clamp	24-29 Nm
Injector pipe unions	15-20 Nm
Fuel/injection pump sprocket/gear	88 Nm
Fuel/injection pump flange	30 Nm
Glow plugs	22-24 Nm
Chassis tightening torques
Front hub	—
View more information	—
Rear hub	250-300 Nm
Steering track rod end	50-60 Nm
Brake disc to hub Front	12 Nm
Brake caliper to carrier Front	35 Nm
Brake caliper/carrier to hub Front	55 Nm
Brake disc to hub Rear	12 Nm
Brake caliper to carrier Rear	33 Nm
Brake caliper/carrier to hub Rear	46 Nm
ABS sensor Front	5 Nm
ABS sensor Rear	5 Nm
Road wheels	95-105 Nm

Air conditioning

Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	1250
Air conditioning oil Type	Suniso 5GS

Frequently asked questions

What is the injection sequence of the Alfa Romeo 164 2.5 Turbo?

The injection sequence for the Alfa Romeo 164 2.5 Turbo (1987–1992) is 1-3-4-2.

What glow plugs does the Alfa Romeo 164 2.5 Turbo use?

Glow plugs for the Alfa Romeo 164 2.5 Turbo (1987–1992): Beru 657 MJ, Bosch 0 250 201 012, Champion CH70 and Lucas/CAV HDS267.

How much oil does the Alfa Romeo 164 2.5 Turbo take?

The Alfa Romeo 164 2.5 Turbo (1987–1992) takes 6.4 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.

What are the valve clearances for the Alfa Romeo 164 2.5 Turbo?

Valve clearances for the Alfa Romeo 164 2.5 Turbo (1987–1992) are 0,30 mm inlet and 0,30 mm exhaust, measured cold.

What is the minimum brake disc thickness for the Alfa Romeo 164 2.5 Turbo?

Brake discs on the Alfa Romeo 164 2.5 Turbo (1987–1992) are replaced at a minimum thickness of 20,2 mm (ventilated) front and 9 mm rear.

What battery does the Alfa Romeo 164 2.5 Turbo use?

The Alfa Romeo 164 2.5 Turbo (1987–1992) uses a 12 V, 90 Ah battery (reserve capacity 160 minutes).