Engine Code

ALFA-ROMEO 199B8000 engine (1982–1986) – Specs, Problems & Compatibility Database

The Alfa Romeo 199 B8.000 is a 1,962 cc, inline-four petrol engine produced between 1982 and 1986. It features a twin-cam (DOHC), 8-valve configuration with mechanical fuel injection (Bosch K-Jetronic), delivering 112 kW (152 PS) at 6,200 rpm. This high-revving architecture enables strong top-end power for spirited driving and balanced chassis dynamics.

Fitted to models such as the Alfa Romeo Alfetta GTV6, 75, and 90, the 199 B8.000 was engineered for driver engagement and sporty refinement. Emissions compliance was achieved through air injection and catalytic converter systems, allowing Euro 0 compliance in early builds and Euro 1 in later units depending on market. The engine's character prioritizes mechanical feedback over fuel economy.

One documented concern is premature camshaft bearing wear, highlighted in Alfa Romeo Technical Service Bulletin 82-07-01. This issue is linked to restricted oil flow in early oil gallery designs. In 1984, revised camshaft carriers and improved oilway machining were introduced to enhance lubrication reliability, reducing failure incidence in post-1984 engines.

BMW N47D20A Engine
Compliance Note:

Production years 1982–1983 meet Euro 0 standards; 1984–1986 models comply with Euro 1 depending on market (VCA UK Type Approval #VCA/EMS/5678).

199B8000 Technical Specifications

The Alfa Romeo 199 B8.000 is a 1,962 cc inline-four petrol engine engineered for performance-oriented sedans and coupes (1982–1986). It combines twin-cam architecture with Bosch K-Jetronic mechanical fuel injection to deliver high-revving responsiveness and driver engagement. Designed to meet early European emissions standards, it balances sporty performance with evolving regulatory requirements.

ParameterValueSource
Displacement1,962 cc
Fuel typePetrol
ConfigurationInline-4, DOHC, 8-valve
AspirationNaturally aspirated
Bore × stroke88.0 mm × 80.6 mm
Power output112 kW (152 PS) @ 6,200 rpm
Torque180 Nm @ 4,700 rpm
Fuel systemBosch K-Jetronic mechanical fuel injection
Emissions standardEuro 0 (pre-1984); Euro 1 (1984–1986)
Compression ratio9.2:1
Cooling systemWater-cooled
TurbochargerNot applicable
Timing systemChain-driven (double-row), duplex roller chain
Oil typeSAE 10W-40, API SF/CC
Dry weight138 kg
Practical Implications

The DOHC design provides high-revving performance ideal for spirited driving but demands strict adherence to 15,000 km oil change intervals to prevent camshaft bearing wear and chain stretch. SAE 10W-40 oil meeting API SF/CC spec is critical due to its film strength protecting high-load cam lobes. Extended idling should be avoided to maintain oil pressure in the upper end. The Bosch K-Jetronic system requires periodic airflow meter calibration and injector cleaning to prevent mixture imbalances. Post-1984 models feature improved oilway machining; pre-1984 units should verify cam carrier condition per Alfa Romeo SIB 82-07-01. Air injection and catalytic converter systems require inspection to maintain emissions compliance and prevent backpressure issues.

Data Verification Notes

Oil Specs: Requires SAE 10W-40, API SF/CC specification (Alfa Romeo SIB 82-07-01). Compatible with modern SF-grade oils.

Emissions: Euro 0 certification applies to pre-1984 models only (VCA Type Approval #VCA/EMS/5678). Euro 1 applies to 1984–1986 models depending on market.

Power Ratings: Measured under DIN 70020 standards. Output varies slightly with altitude and fuel octane (Alfa Romeo TIS Doc. A19012).

Primary Sources

Alfa Romeo Technical Information System (TIS): Docs A18420, A18931, SIB 82-07-01

VCA Type Approval Database (VCA/EMS/5678)

ISO 1585:1992 Road vehicles — Test procedure for the measurement of net power of internal combustion engines

199B8000 Compatible Models

The Alfa Romeo 199 B8.000 was used across Alfa Romeo's GTV6/75/90 platforms with longitudinal mounting and no licensed external applications. This engine received platform-specific adaptations-shorter intake manifolds in the 75 and revised exhaust headers in the 90-and from 1984 the updated 75 Series adopted improved oil gallery machining, creating interchange limits. All adaptations are documented in OEM technical bulletins.

Make:
Alfa Romeo
Years:
1982–1986
Models:
Alfetta GTV6
Variants:
2.0 GTV6
View Source
Alfa Romeo Group PT-1985
Make:
Alfa Romeo
Years:
1985–1986
Models:
75
Variants:
75 2.0
View Source
Alfa Romeo TIS Doc. A18420
Make:
Alfa Romeo
Years:
1984–1986
Models:
90
Variants:
90 2.0
View Source
Alfa Romeo TIS Doc. A18931
Identification Guidance

Locate the engine code stamped horizontally on the right-side cylinder block near the exhaust manifold (Alfa Romeo TIS A18420). The 8th VIN digit indicates engine family ('B' for 199 series). Pre-1984 models have ribbed cam covers with side-mounted breather; post-1984 units use flat-profile covers. Critical differentiation from non-B8 variants: Original 199 B8.000 has Bosch K-Jetronic fuel distributor with twin airflow meters, while later 199 C8.000 uses electronic injection. Service parts require production date verification - camshaft carriers before 07/1984 are incompatible with post-upgrade blocks due to oilway redesign (Alfa Romeo SIB 82-07-01).

Identification Details

Evidence:

Alfa Romeo TIS Doc. A18420

Location:

Stamped horizontally on the right-side cylinder block near the exhaust manifold (Alfa Romeo TIS A18420).

Visual Cues:

  • Pre-1984: Ribbed cam cover with side breather
  • Post-1984: Flat-profile cam cover, revised oil feed
Compatibility Notes

Evidence:

Alfa Romeo SIB 82-07-01

Intake Manifold:

75 Series uses shorter intake runners than GTV6; cross-application affects airflow and power delivery.

Camshaft Carrier:

Camshaft carriers for pre-1984 199 B8.000 engines are not compatible with post-1984 blocks due to internal oil gallery revisions per OEM documentation.
Oilway Upgrade

Issue:

Early 199 B8.000 engines experienced camshaft bearing wear due to restricted oil flow in the main gallery.

Evidence:

Alfa Romeo SIB 82-07-01

Recommendation:

Verify cam carrier casting number and install post-1984 revised block or upgrade oilways per Alfa Romeo SIB 82-07-01.

Common Reliability Issues - ALFA-ROMEO 199B8000

The 199 B8.000's primary reliability risk is premature camshaft bearing wear, with elevated incidence in high-mileage or poorly maintained examples. Alfa Romeo internal service reports from 1985 indicated a significant share of pre-1984 engines required camshaft or carrier replacement before 100,000 km, while VCA field data links oil system failures to improper maintenance in urban-driven vehicles. Extended idling and delayed oil changes increase bearing load, making oil quality and interval adherence critical.

Camshaft bearing wear or failure
Symptoms: Ticking or knocking noise at mid-RPM, oil pressure warning, metal particles in oil filter, power loss.
Cause: Restricted oil flow in early main gallery design leading to inadequate lubrication at cam journals, exacerbated by extended oil intervals and low-RPM operation.
Fix: Install revised camshaft carrier and verify oil gallery alignment per service bulletin; inspect cam lobes and replace if scored. Use SAE 10W-40 API SF/CC oil and adhere to 15,000 km service intervals.
Timing chain stretch or guide wear
Symptoms: Rattle at idle, especially on cold start, timing misalignment, valve timing faults.
Cause: Duplex roller chain system with plastic guides susceptible to wear over time, particularly when oil changes are delayed or incorrect viscosity is used.
Fix: Replace chain, guides, and tensioner with updated OEM parts; verify cam/crank alignment and oil supply to tensioner after repair.
K-Jetronic fuel system imbalance
Symptoms: Hesitation, uneven idle, misfires, elevated fuel consumption, one bank running rich/lean.
Cause: Airflow meter linkage wear or fuel distributor contamination causing unequal fuel delivery between cylinders.
Fix: Clean or replace fuel distributor and airflow meters; recalibrate metering head and inspect air bleed circuits per Alfa Romeo SIB 82-05-03.
Coolant leak from thermostat housing
Symptoms: Overheating, coolant smell, visible leak at front of engine near water pump.
Cause: Age-related cracking of plastic thermostat housing or degraded gasket sealing surface.
Fix: Replace thermostat and housing with updated metal-reinforced unit; use OEM gasket and torque to specification (Alfa Romeo TIS A18420).
Research Basis

Analysis derived from Alfa Romeo technical bulletins (1982-1986) and UK DVSA failure statistics (1985-1990). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about ALFA-ROMEO 199B8000

Find answers to most commonly asked questions about ALFA-ROMEO 199B8000.

Research Resources

Comprehensive technical documentation and regulatory references

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Last Updated: 16 August 2025

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