Mazda1989–1994Technical specifications

323 1.7: Technical specifications

Workshop data for the 1.7-litre diesel (engine code PN). 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 (PN) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Mazda
Model: 323
Years: 1989–1994
Fuel: Diesel
Engine code: PN

Performance & efficiency

Power: 41 kW (56 hp)
Engine size: 1,720 cc
Cylinders: 4 · OHC
Compression ratio: 22.2:1

Fluids & capacities

Engine oil (with the filter): 3.9 litres

All 103 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/OHC
Capacity cc	1720
Compression ratio :1	22,2

Injection system

Fuel/injection pump assembly Make	Kiki
Fuel/injection pump assembly Type	VE
Fuel/injection pump assembly Part No.	104740-0420
Pump type	Rotary
Injector nozzle Make	Bosch Kiki
Nozzle opening pressure - new/used bar	110

Injection sequence

The injection sequence for the Mazda 323 1.7 (1989–1994) is 1-3-4-2.

Injection sequence	1-3-4-2

Valve clearances

Valve clearances for the Mazda 323 1.7 (1989–1994) are 0,15 mm inlet and 0,25 mm exhaust, measured cold.

Valve clearance - INLET mm	0,15 cold
Valve clearance - EXHAUST mm	0,25 cold

Engine oil & fluids

Engine oil

The Mazda 323 1.7 (1989–1994) takes 3.9 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 2.7 litres. The specified oil is SAE 75W-90.

Coolant

The listed total cooling-system capacity is 6.0 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range	➞-20°C
Engine oil grade SAE	5W-30
Engine oil classification API/ACEA	CF/B2
Ambient temperature range	-25°C➞30°C
Engine oil grade SAE	10W-30
Engine oil classification API/ACEA	CF/B2
Ambient temperature range	-10°C➞35°C
Engine oil grade SAE	15W-40
Engine oil classification API/ACEA	CF/B2
Ambient temperature range	-10°C➞25°C
Engine oil grade SAE	20W-20
Engine oil classification API/ACEA	CF/B2
Engine with filter(s) litres	3.9
Other lubricants and capacities
Manual transmission oil grade SAE	75W-90
Manual transmission litres	2.7
Automatic transmission fluid Type	Dexron II
Automatic transmission (dry fill) litres	5.7
Cooling system - total capacity litres	6.0
Brake fluid Type	DOT 3
Power steering fluid Type	Dexron II

Brakes & wear limits

Brake disc thickness

Brake discs on the Mazda 323 1.7 (1989–1994) are replaced at a minimum thickness of 16 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 201 mm.

Minimum disc thickness for replacement - ventilated Front	16 mm
Maximum drum diameter for replacement Rear	201 mm

Brake disc and drum dimensions

Disc runout Front	0,10 mm
Minimum pad thickness Front	1 mm
Minimum shoe thickness Rear	1 mm
Parking brake travel No. of notches	7-11

Service & electrical

Battery

The Mazda 323 1.7 (1989–1994) uses a 12 V, 80 Ah battery (reserve capacity 130 minutes).

Battery V/RC(Ah)	12/130 (80)

Glow plugs

Glow plugs for the Mazda 323 1.7 (1989–1994): Bosch 9 443 610 298, Champion CH97 and Lucas/CAV HDS241.

Glow plug - part no. Bosch	9 443 610 298
Glow plug - part no. Champion	CH97
Glow plug - part no. Lucas/CAV	HDS241

Tuning and emissions

Plunger travel (pump) mm ABDC	0,53
Crankshaft position (n = ATDC) °BTDC	2 n
Adjusting method Engine/Pump	Pointer/Dial gauge
Idle speed rpm	800-830
Rated no load speed rpm	5700
Oil temperature °C	60
Idle speed - for smoke test rpm	800-830
Governed speed range - for smoke test rpm	5200-5400
Maximum time at governed speed secs	1,0
Test mode A/B	B
Probe type 1/2	1
Smoke opacity - EU limit m-1 (%)	2,50 (66)

Starting and charging

Starter motor Make	Mitsubishi
Starter motor Type	12V/1,4 kW
Maximum cranking amps A	216-264
Alternator Make	Mitsubishi
Alternator Type	12V/65A
Alternator output A/V/rpm	43/14,7/2500
Regulated voltage V	14,1-14,7

Service checks and adjustments

Compression pressure bar	26-29
Oil pressure bar/rpm	3,0/3000
Radiator cap bar	0,75-1,05
Thermostat opens °C	84-88
Drive belt size - alternator mm	12,5x875
Drive belt tension - alternator/PAS/AC mm	10-10,5

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Mazda 323 1.7 (1989–1994) are tightened in 3 stages: 29 Nm, then 90°, then a final 90°.

Cylinder head
Maximum bolt length	114,5 mm
Tighten	29 Nm
Tighten	90°
Tighten	90°

Other engine tightening torques
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	35 Nm
Main bearings Stage 2	70 Nm
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	15 Nm
Big end bearings Stage 2	90°
Oil pump to cylinder block	19-25 Nm
Sump bolts	10 Nm
Sump drain bolt	29-41 Nm
Flywheel/driveplate	67-76 Nm
Clutch pressure plate	18-26 Nm
Crankshaft pulley/damper centre bolt	78-88 Nm
Camshaft sprocket/gear	39-54 Nm
Camshaft carrier/cap	18-26 Nm
Camshaft/rocker cover	7-10 Nm
Inlet manifold to cylinder head	22-28 Nm
Exhaust manifold to cylinder head	22-28 Nm
Injector/clamp	59-69 Nm
Injector pipe unions	25-29 Nm
Injector nozzle to holder	59-69 Nm
Fuel/injection pump sprocket/gear	59-67 Nm
Fuel/injection pump flange	19-25 Nm
Fuel/injection pump mounting	19-25 Nm
Glow plugs	15-20 Nm
Chassis tightening torques
Front hub	235-319 Nm
Steering track rod end	42-57 Nm
Brake caliper/carrier to hub Front	44 Nm
Road wheels	88-118 Nm

Air conditioning

Air conditioning refrigerant Type	R12
Air conditioning refrigerant quantity grams	775±25
Air conditioning oil Type	Dens Oil 6
Air conditioning oil quantity cm³	120

Frequently asked questions

What is the injection sequence of the Mazda 323 1.7?

The injection sequence for the Mazda 323 1.7 (1989–1994) is 1-3-4-2.

What glow plugs does the Mazda 323 1.7 use?

Glow plugs for the Mazda 323 1.7 (1989–1994): Bosch 9 443 610 298, Champion CH97 and Lucas/CAV HDS241.

How much oil does the Mazda 323 1.7 take?

The Mazda 323 1.7 (1989–1994) takes 3.9 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 Mazda 323 1.7?

Valve clearances for the Mazda 323 1.7 (1989–1994) are 0,15 mm inlet and 0,25 mm exhaust, measured cold.

What is the cylinder head torque for the Mazda 323 1.7?

The cylinder head bolts on the Mazda 323 1.7 (1989–1994) are tightened in 3 stages: 29 Nm, then 90°, then a final 90°.

What is the minimum brake disc thickness for the Mazda 323 1.7?

Brake discs on the Mazda 323 1.7 (1989–1994) are replaced at a minimum thickness of 16 mm (ventilated) front; the rear brake drums are replaced at a maximum diameter of 201 mm.