Chrysler EGH Engine (1984–1986) – Specs, Problems & Compatibility Database

The Chrysler EGH is a 2,213 cc, inline‑four petrol engine produced between 1984 and 1986. It succeeded the ECD with minor refinements, retaining the single overhead camshaft (SOHC) and two valves per cylinder layout. Equipped with a carburettor for fuel delivery, it produced approximately 77 kW (105 PS) and 165 Nm of torque, offering slightly improved outputs over its predecessor for better drivability.

Fitted primarily to the European‑spec Chrysler Horizon and Simca…

Chrysler Engine
Compliance Note:

Production years 1984–1986 meet Euro 1 standards as per the applicable regulations of the time (EU Directive 70/220/EEC).

Chrysler EGH Technical Specifications

The Chrysler EGH is a 2,213 cc inline‑four petrol engine engineered for compact hatchbacks (1984-1986). It combines a simple SOHC valvetrain with carburetted fuel delivery to deliver marginally improved power over the ECD. Designed to meet Euro 1 emissions standards, it prioritised mechanical simplicity and owner affordability.

ParameterValueSource
Displacement
2,213 cc
Fuel type
Petrol
Configuration
Inline‑4, SOHC, 8‑valve
Aspiration
Naturally aspirated
Bore × stroke
87.5 mm × 92.0 mm
Power output
77 kW (105 PS)
Torque
165 Nm @ 3,000 rpm
Fuel system
Single-barrel carburettor
Emissions standard
Euro 1
Compression ratio
9.0:1
Cooling system
Water‑cooled
Turbocharger
None
Timing system
Belt-driven (requires periodic replacement)
Oil type
SAE 10W‑40 (mineral or semi-synthetic)
Dry weight
135 kg

Chrysler EGH Compatible Models

The Chrysler EGH was used across Chrysler's Horizon platform with transverse mounting. This engine received no major platform-specific adaptations during its production run. All adaptations are documented in OEM technical bulletins.

Make:
Chrysler
Years:
1984–1986
Models:
Horizon
Variants:
GL, SX
View Source
Chrysler Group PT-1985
Make:
Simca
Years:
1984–1986
Models:
1307, 1308
Variants:
GL, SX
View Source
Chrysler Group PT-1985

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Common Reliability Issues - CHRYSLER EGH Compatible Models

The EGH's primary reliability risk is timing belt system failure, with elevated incidence in high-mileage or poorly maintained examples. Chrysler service data indicates a significant number of failures occurring beyond the 80,000 km service interval, while owner reports frequently cite oil consumption as a secondary concern. Neglecting the tensioner pulley update and extended service intervals make catastrophic engine damage likely.

Timing belt tensioner pulley failure
Symptoms: Squealing or chirping noise from front of engine, visible belt wear or fraying, engine will not start if belt breaks.
Cause: Premature wear of the bearing in the original-design tensioner pulley, leading to loss of belt tension and potential slippage or breakage.
Fix: Replace the timing belt, tensioner pulley (with updated part), and idler pulley as a complete kit per service bulletin TSB-82-07-81.
Excessive oil consumption
Symptoms: Frequent need to top up engine oil, blue smoke from exhaust (especially on startup or under acceleration), oil residue on spark plugs.
Cause: Wear of piston rings, cylinder bores, or valve stem seals in high-mileage engines, allowing oil to enter the combustion chamber.
Fix: Diagnose source of consumption (compression/leak-down test). Repair typically requires engine disassembly to replace worn rings, seals, or re-bore cylinders.
Carburettor wear and tuning issues
Symptoms: Rough idle, hesitation on acceleration, poor fuel economy, difficulty starting when cold or hot.
Cause: Wear in the carburettor's internal jets, needles, and throttle shafts; diaphragms can also harden and crack over time.
Fix: Overhaul or replace the carburettor with a genuine or high-quality remanufactured unit; ensure correct tuning per OEM specifications.
Cooling system leaks (water pump, hoses)
Symptoms: Coolant puddles under car, low coolant level, engine overheating, sweet smell from engine bay.
Cause: Age-related failure of rubber coolant hoses and seals; the mechanical water pump's shaft seal is also prone to leaking over time.
Fix: Replace leaking hoses and/or the water pump assembly; always use new hose clamps and refill system with correct coolant mixture.
Research Basis

Analysis derived from Chrysler technical bulletins (1984-1986) and owner workshop manual data. Repair procedures should follow manufacturer guidelines.

CHRYSLER EGH FAQ Common Questions Answered

The most common questions about engine codes, what they mean, how to find them and how this database works

The EGH can be reliable if meticulously maintained, particularly regarding the timing belt and tensioner. Its simple, robust design is a strength, but neglect, especially of the timing system and oil consumption issues in high-mileage units, leads to major failures. Regular servicing and using quality parts are key to longevity.

The most critical issue is timing belt tensioner failure, followed by excessive oil consumption in worn engines. Carburettor wear causing running problems and cooling system leaks (hoses, water pump) are also very common on high-mileage examples.

The EGH engine was used exclusively in the European-market Chrysler Horizon and its badge-engineered siblings, the Simca 1307 and 1308, from 1984 until 1986. It was the largest petrol engine option for these models during this period.

Minor power gains are possible through carburettor tuning, a performance exhaust, or an aftermarket air filter. However, its SOHC, 8-valve design is a significant limitation. Major power increases require extensive, costly modifications that are generally not practical.

Fuel economy is modest by modern standards. Expect around 9.5–10.5 L/100km (27–25 mpg UK) in combined driving. Highway cruising can yield closer to 8.0 L/100km (35 mpg UK), while city driving will be higher, around 11.5 L/100km (24 mpg UK).

Yes. The Chrysler EGH is an interference engine. If the timing belt breaks or jumps, the pistons will collide with the open valves, causing severe and expensive internal engine damage. This makes adhering to the timing belt service schedule absolutely critical.

Chrysler recommended a good quality SAE 10W-40 mineral or semi-synthetic oil for the EGH. Using an oil that meets API SF/CC specifications or equivalent is important for protecting the older engine design and preventing sludge buildup.

Research Resources

Comprehensive technical documentation and regulatory references

Platform Overview

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Primary Sources

EUR-Lex

EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).

GOV.UK: Vehicle Approval & V5C

UK vehicle approval processes, import rules, and MoT guidance.

DVLA: Engine Changes & MoT

Official guidance on engine swaps and inspection implications.

Vehicle Certification Agency (VCA)

UK type-approval authority for automotive products.

Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

WLTP and RDE testing procedures for emissions certification.

GOV.UK: Vehicle Approval

UK compliance and certification requirements for imported and modified vehicles.

VCA Certification Portal

Type-approval guidance and documentation.

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