Plateau Honing

The ideal finish of an engine is made up of a pattern of scratches along the surface of the bore.  Under magnification, these scratches make up a series of peaks and valleys.  The piston rings run up and down along the peaks and the valleys act as oil reservoirs for lubrication to the cylinder.

Traditional honing methods tend to form sharp or folded peaks, (see figure 1 and 2) which is not ideal.  During the "bedding in" process, these peaks wear or break off and act as abrasives in the engine oil, promoting premature cylinder wear.  The accuracy of the piston ring clearance is altered as the rings no longer ride against the top of the peak.  The folded material also has a tendency to collect in the valleys, restricting the available space for oil to collect, therefore inhibiting lubrication of the rings.

Under magnification, Figure 1 and 2 represent a honing finish which is not ideal.

  Figure 3 is the result of a correct plateau finish.

With plateau honing, a different surface is achieved.  The peaks formed during the initial honing are flattened and free from sharp points and folds, eliminating breakage and creating clean troughs for optimum lubrication (see figure 3).

To keep in line with orginal manufacturers specifications and ensure a precise finish, Galloway Engines employ plateau honing technology when machining cylinder bores.  These tools, which consist of a series of nylon filaments impregnated with silicone carbide, have the ability to sear off, as opposed to folding over the peaks of a surface finish.

Plateau honing tools will also remove loose debris from the valleys, which results in more efficient cleaning of the surface after honing.

The result is a perfect engine finish with the perfect bore finish.

To ensure the best performance and the maximum life from your engine, your cylinders should be plateau honed.  Contact us for more information on how we can provide your engine with the highest quality hone for your cylinders, ensuring the perfect bore finish.

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  WE MADE THE FINALS!   Galloway Engines has been named as a finalist in the Peel CCI business excellence awards for 2016 in the category of 5-10 employees. We are up against some tough competition from around the Peel region but...


Frequently Asked Questions

How do I know if my engine needs reconditioning?

Tell-tale signs that your engine requires attention are that it has lost performance or efficiency, it blows excessive smoke or it has developed an unusual noise.  However, a vehicle needn't have these symptoms to benefit from a reconditoned engine.  A complete and comprehensive recondition of your engine will increase power, fuel efficiency and extend the life of your vehicle.

Do you remove and refit engines?

Galloway Engines is a precision workshop which deals in machining and reconditioning engines.  This ensures we are specialists in our field and only a quality job of the highest standard will be delivered.  We can arrange engine removal and fitment or contact your regular vehicle servicing centre for this service.

Can I supply my own parts?

Yes. You are quite welcome to supply your own new parts should you have a preference for a particular brand name.  However, our parts prices are very competitive and our high standards ensure that only quality parts are fitted to any job.  We have liaisons with many Australian and international companies allowing us to have access to world-wide sourcing of parts.

Do you offer a warranty?

Any reputable product will come with a warranty as proof of its quality.  Galloway Engines are no exception.  We offer a full warranty on all of our work.  Contact us for more information on the terms and conditions of our warranty.

Why should I use Galloway Engines?

Galloway Engines supply a quality engine which is completely reconditioned to comply with original manufacturers specifications and are in accordance with Australian Standards AS4182 for petrol engines and AS4427 for diesel engines.  Our up-to-date equipment produces quality precision work and our team of specialised technicians are dedicated to detail.  This ensures you are getting the best job possible.

Can you recondition any engine?

Yes. Whether it be a Caterpillar engine from a giant earthmoving machine or a small three cylinder Suzuki engine, we have the equipment to be able to meet your needs.  Contact us to see how we can meet your requirements.

Do you offer engines which suit LPG?

As LPG has different properties to unleaded fuel, an engine can experience problems when converted to LPG.  We can offer options which can enhance the performance and reliability of an LPG engine.  Galloway Engine Reconditioning also stock a range of exchange heads which are modified to run on LPG.  

Do you have EFTPOS?

We have full EFTPOS facilities available and are able to accept payment via Credit or Debit Card.


  • Address:

    Galloway Engine Reconditioning,
    25 Baker St,
    Pinjarra WA 6208
  • Phone / Fax:

    08 9531 1366
    08 9531 2321
  • Email: