Oil Pump With Timing Cover FITS VAUXHALL 1.2 1.4 Turbo Twinport petrol 55595611

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Vauxhall / Opel Engine Oil Pump with Front Timing Cover Assembly, part number 55595611, suitable for selected 1.4 petrol and 1.4 Turbo petrol engines.

This assembly forms part of the front engine and lubrication system, incorporating the engine oil pump within the front timing cover housing.

Part Details

GM Part Number: 55595611

Opel/Vauxhall Reference: 638212 / 6 38 212

Part Type: Oil Pump with Front Timing Cover / Engine Front Cover

Position: Front of Engine

System: Engine Lubrication / Timing System

Fuel Type: Petrol

Condition: Please refer to listing condition and supplied photographs

Compatibility

Suitable for selected Opel / Vauxhall applications including:

* Vauxhall Astra J

* Vauxhall Corsa

* Vauxhall Meriva B

* Vauxhall Insignia

* Vauxhall Zafira Tourer

* Vauxhall Adam

* Opel equivalents of the above models

* Selected compatible GM/Chevrolet applications

Engine Compatibility

Documented applications include selected:

1.4 Turbo Petrol

* A14NET

* B14NET

* LUJ-family applications

* Related compatible 1.4 Turbo engine variants

GM used several different front-cover and oil-pump assemblies across its petrol engine range, so compatibility should always be confirmed using the engine code and OE number.

Technical Information

The 55595611 assembly forms the front engine/timing cover and incorporates the engine oil-pump system.

Its functions include:

* Housing the engine oil-pump mechanism

* Circulating engine oil under pressure

* Providing internal oil passages

* Forming the front engine/timing cover

* Providing sealing surfaces between the cover and engine

* Supporting the front crankshaft sealing arrangement

* Protecting the internal timing area

Correct installation is particularly important because the assembly forms part of the engine’s pressurised lubrication system.

Engine Oil Pump System Information

The oil pump circulates engine oil under pressure throughout the engine.

Correct oil pressure is essential for lubrication of components including:

* Crankshaft bearings

* Connecting rod bearings

* Camshaft components

* Cylinder head

* Timing-system components

* Turbocharger on applicable Turbo engines

* Other internal moving components

Insufficient oil pressure can rapidly cause serious engine damage.

Common Reasons for Replacement

Replacement may be required because of:

* Low engine oil pressure

* Oil-pump wear

* Oil-pump failure

* Damaged timing/front cover

* Cracked housing

* Engine oil leakage

* Damaged internal oil passages

* Damaged sealing surfaces

* Previous engine failure

* Damage during timing-system repairs

* Contamination following internal engine damage

Common Symptoms of Oil Pump Problems

Possible symptoms include:

* Oil-pressure warning light

* Low measured engine oil pressure

* Engine rattling

* Timing-system noise

* Top-end engine noise

* Turbocharger lubrication problems

* Abnormal mechanical engine noise

* Increased engine wear

An engine with confirmed low oil pressure should not continue to be operated until the cause has been identified.

Important Diagnostic Information

Low oil pressure does not automatically mean the oil pump itself has failed.

Before replacement, check:

* Engine oil level

* Correct oil specification

* Oil filter

* Oil pickup

* Oil pickup seals

* Oil sump for contamination

* Oil-pressure sensor

* Actual oil pressure using suitable test equipment

* Internal engine bearing condition

* Oil galleries

* Oil-pump condition

* Timing-system condition

If the engine previously suffered internal mechanical damage, inspect the complete lubrication system for metallic debris before installing replacement components.

Turbo Engine Information

Correct oil pressure is particularly important on 1.4 Turbo applications because the turbocharger relies on pressurised engine oil for lubrication.

Following an oil-pressure-related failure, inspect the:

* Turbocharger

* Turbo oil feed

* Turbo oil return

* Oil pickup

* Oil filter

* Engine oil

* Internal oil galleries

The cause of the original lubrication problem should be identified before installing a replacement oil pump.

Installation

This is a major engine lubrication and timing-system component.

Installation should be performed by a competent mechanic following the appropriate manufacturer procedure.

During installation:

* Thoroughly clean all mating surfaces

* Keep internal oil passages clean

* Use appropriate new seals/gaskets

* Inspect the crankshaft sealing area

* Inspect the timing system

* Prime/lubricate the oil pump as specified

* Use the correct engine oil and filter

* Follow the correct tightening sequence and torque specifications

* Verify engine oil pressure after installation

* Check carefully for oil leaks

Programming / Coding

No programming or coding required.

This is a mechanical engine component.

OE / Supersession Information

Main OE Number: 55595611

Opel/Vauxhall Number: 638212 / 6 38 212

Related / earlier reference:

55581012

Always confirm compatibility against the original component and engine specification.

Important Compatibility Note

Vauxhall / Opel used several visually similar oil-pump and front-cover assemblies across different petrol engines.

Before ordering, please compare:

OE Number: 55595611

Opel Number: 638212

Engine code

Engine capacity

Turbo / Non-Turbo specification

Front cover casting/design

Oil-pump configuration

Mounting points

Oil passage arrangement

Original component

Matching the OE number and engine code is strongly recommended.

Condition

Please inspect all supplied photographs carefully for the exact condition and components included.

Pay particular attention to:

* Housing/casting

* Oil-pump area

* Sealing surfaces

* Threads

* Mounting points

* Internal oil passages

For a used assembly, thorough cleaning and inspection before installation are recommended.

An ideal replacement for a damaged, leaking or faulty Vauxhall / Opel petrol engine oil pump with front timing cover requiring OE number 55595611 / 638212.