ENGINE B U L L E T I N

ALSO INSIDE THIS ISSUE:

ALL MAKES ENGINE PARTS FOR ALL CARS! ALL VANS! ALL BUSES! ALL TRUCKS! ALL ENGINES! ALL AREAS!

01977 553936 or email engine@imexpart.comwww.imexpart.com/engine

Call the IMEX parts experts today

IMEX HAS THE

£2LOW PRICES

on selected valves

POWER TO DELIVER...POWER TO DELIVER...

ISSUE 25 | OCT15

… genuine savings and FREE delivery* on quality engine parts you can trust, for ALL makes and ALL models.

We’ve re-introduced our fixed low prices on a selection of alternative valves for £2 each, including:

REDUCED PRICES ON NPR RINGSETS FOR FORD& VAUXHALL

Peugeot Renault Mercedes VW BMW

Call IMEX today to save money on your engine parts 01977 553936, press 2 for engine.

NEW ALTERNATIVE PISTONS, RINGS,VALVES & LINERS!

NEW Engine kitsNEW! NEW! NEW!

We’ve added a new kit to our engine kits: Vauxhall Z1.6XEP

We stock engine kits for other popular models, please speak to our engine parts experts for more details on 01977 553936!

each

MAHLE valve traincomponent catalogue

01977 553936 or email engine@imexpart.comCall the IMEX parts experts today

You name it, Imex have it... FREE same day delivery across most of the UK from our nationwide depots or FREE TNT next day morning delivery on all orders over £100 in our next day areas*

Mahle have launched their NEW valve train components including valves, guides and seats for all popular applications. If you would like a copy, just ask when you place your next order on 01977 553936, press 2 for engine!

NEW! NEW! NEW!

Piston rings

IMEX have increased their coverage of ring sets for popular diesel applications with the following additions:

Peugeot DW10 (Later Type) Peugeot DV6 8v Land Rover 3.0 TDV6 Honda N22

King Bearings have commissioned an independent report into a new manufacturing process they have developed to improve the consistency in bearing wall thickness.

This is available as a PDF file, so if you would like a copy email: engine@imexpart.com.

Taxi engine parts

NEW IN STOCK...

64 JULY-SEPT 2015 engine professional

IntroductionHydrodynamic lubrication is the major regime of engine bearing

operation. In hydrodynamic lubrication, the bearing surface is

separated from the crankshaft by an oil film [1]. The presence

of the oil film prevents direct metal-to-metal contact. This

considerably reduces any wear of the engine bearing material.

The oil film also decreases the probability of seizure between the

bearing and journal materials.

Thus bearing life span strongly depends on the stability of

hydrodynamic lubrication.

Three conditions are indispensable to the regime of

hydrodynamic lubrication:

• Adequatevolumeofliquidlubricantsuppliedtothebearing

• Journalrotationspeedsufficientforgeneratingseparating

pressure• Aconverginggap(wedge)betweenthebearingandjournal

surfaces

The latter condition is realized when the journal is shifted

from the concentric position in the bearing. The maximum

value of shift is determined by the oil clearance – the difference

between the bearing and the journal diameters.

Clearance is the basic geometric parameter of an engine

bearing [2].

Oil clearance is determined by the formula:

C = Dh - Dj – 2*h

Where:Dh – bearing housing diameter;

Dj – journal diameter;

h – bearing wall thickness, measured at the crown.

Abearingmanufacturercannotcontrolthehousingand

journal diameters. Therefore bearing thickness is the only

parameter available to bearing manufacturers that can affect the

clearance value.

In order to provide a stable hydrodynamic lubrication regime

for bearing operation, its thickness should match the specified

value within a tight tolerance. In other words, bearings should

be manufactured with consistent thickness.

Bull’s Eye Tolerance

Bull’s Eye Tolerance is a production technology developed by

King Engine Bearings. It ensures very accurate wall thicknesses.

The technology includes fully automatic processes of

precise boring and thickness measurement. It is achieved in

machines developed and designed by King engineers. The

processisintegratedintothequalityassurancesystemofthe

factory, monitoring the production process and the machines’

performance.In order to evaluate its accuracy level as compared to that

of other bearing manufacturers, King ordered an independent

investigationbySGSS.A.–amultinationalcompany

headquarteredinGeneva,Switzerland.SGSS.A.provides

inspection, verification, testing and certification services.

Identical bearings produced by 6 different leading bearing

manufacturers were measured in the investigation. 32 bearings

(4setswith8pieceseach)ofeachmanufacturerweretaken.

The wall thickness of each bearing was measured in two

pointsofthebearingcrown(384measurementstotal).

Analysisoftheminimumandmaximumthickness,statistical

variances and the average values is presented in the table below.

The statistical variances of the measurement results are also

showngraphicallyinFigure1(onpage66).

King bearings exhibited the minimum statistical variance of

173 microinch. The variances of the bearing thickness of other

CONSISTENCY IN BEARING WALL THICKNESSBY DR. DMITRI KOPELIOVICH

Summary of Measurement Results

Maximum Minimum Variance Average

thickness, thickness, (max-min), thickness,

Manufacturer inch inch microinch inch

Competitor 1 0.071047 0.070728 319 0.070877

King Bearings 0.071071 0.070898 173 0.071004

Competitor 2 0.071386 0.070272 1114 0.071199

Competitor 3 0.070996 0.070780 217 0.070860

Competitor 4 0.071024 0.070579 445 0.070842

Competitor 5 0.071197 0.070854 343 0.071009

Technical information - Bearing wall thickness

IMEX offer a full range of parts for Ford Duratorq and VM 2.5 CRD engines as used in black cabs.

For quality engineparts call IMEX today!

NPR Ring sets

Special prices on NPR ring sets for all popular Ford & Vauxhall applications. Our OE quality NPR Europe range also includes bearings.

Ring IMEX today to save money onyour engine parts!

REDUCED PRICES!

Reinz have launched their new range of catalogues - Car/Van applications, Truck applications, and a NEW catalogue covering Agricultural/Industrial applications.

If you would like a copy just ask when you place your next order on 01977 553936, press 2 for engine!

NEW Reinz catalogues

Alternative valvesNEW alternatives...

or email engine@imexpart.com www.imexpart.com/engine

You name it, Imex have it... FREE same day delivery across most of the UK from our nationwide depots or FREE TNT next day morning delivery on all orders over £100 in our next day areas*

We now offer a range of alternative brand liners

for popular large diesel applications including

Volvo, Scania, DAF and MAN. Call the

IMEX parts experts on 01977 553936, press 2 for engine.

We’ve added more alternative pistons and rings for popular applications:

Vaux Z1.6XEP Mazda R2 16v Renault M9R Kia J3 CRDi

PISTON RANGE!

ALTERNATIVE LINERS!

Part Model Engine Type

Exhaust Valve Peugeot TU5JP4

Inlet Valve Peugeot TU5JP4

Exhaust Valve Renault K4M

Inlet Valve Renault K4M

Exhaust Valve Renault F9Q

Inlet Valve Renault F9Q

Exhaust Valve Renault K9K

Inlet Valve Renault K9K

Exhaust Valve Renault D7F

Inlet Valve Renault D7F

Exhaust Valve Mercedes M271

Inlet Valve Mercedes M271

Exhaust Valve VW 1.4/1.6 TFSI

Inlet Valve VW 1.4/1.6 TFSI

Inlet/Exhaust Valve BMW M47

Exhaust Valve BMW N47

Inlet Valve BMW N47

Exhaust Valve Peugeot DW10

Inlet Valve Peugeot DW10

Exhaust Valve Renault G9U/G9T

Inlet Valve Renault G9U/G9T

on valves for Peugeot, Renault, Mercedes, VW and BMW applications.

LOW PRICES!

VOLVO D7C VALVES!We stock alternative inlet and exhaust Volvo D7C valves for this popular PSV application. For D7C heads we also stock injector sleeves, valve springs, valve seat inserts and valve guides.

For quality engine parts delivered to you FREE* the same daycall IMEX today on01977 553936, press 2 for engine.We’re waiting for your call8am - 6pm weekdays.

£2LOW PRICES

on selected valves

each

Call IMEX today for huge savings, quality engine parts and much more!

Supplier Websites

Terms and Conditions: *VALVES OFFER ends 31st December 2015, while stocks last. All manufacturers names, numbers, symbols and descriptions are used for reference purposes only and do not imply that any Goods and/or Services or part listed is the product of these manufacturers. Vehicle applications stated are for guidance only. Imex cannot guarantee suitability for models stated. Four times a day delivery service is to selected postcodes only, excluding Saturdays. All orders over £100 (excluding VAT and other charges) in our Next Day Delivery areas will benefit from Free TNT Next Day Morning delivery, excluding Saturdays. Additional charges apply for Saturday delivery.

Federal Mogul www.federalmogul.com

Mahle www.motorenteile.mahle.com/product_catalog

NPR Europe www.npr-europe.com

King Bearings www.king-catalog.com

Victor Reinz www.reinz.de/root/eng/index.php

Elring www.elring.de/index_en.php

KS www.msi-motor-service.com

BGA www.bgautomotive.co.uk

Dayco www.dayco.com

Ajusa www.ajusa.es

AMC www.amc.es

Imex supply replacement parts for Cummins™ engines

We champion ALL major brands for EVERY engine...

You name it, Imex have it...ALL MAKES ENGINE PARTS FOR ALL CARS! ALL VANS! ALL BUSES! ALL TRUCKS! ALL ENGINES! ALL AREAS!

01977 553936 or email engine@imexpart.comwww.imexpart.com/engine

Call the IMEX parts experts today

While others close at 5pm, at IMEX you can order up to 5:45pm

& get your engine parts the next day*

Please say ‘hello’ to...... we’d like to introduce Dane Guy who joins the engine department. He will work alongside Ian, Rob, Mick and Adam to complete the team. To speak to any of our engine parts experts, call today on 01977 553936, press 2 for engine.

GET A FREE DELIVERY TEXT OR EMAIL DELIVERY ALERT!

We can provide an automatic van delivery ETA update via email or text, for all

our same day customers. If you’ve not yet registered email: engine@imexpart.com or tell us when you call.

Cummins™ industrial

IMEX have increased their stock of parts for Cummins™ industrial engines including QSB applications.

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