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ALL MUST GO!!

REDUCED!!! HOISTS TO SELL QUICKLY AT $3,500!!!

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Are you or do you know anyone looking for some new hoists for their garage or workshop?? If so, we have 2 x 5 & 1/2 tonne 4 post hoists for sale! Going cheap at $3,500 ONO, you wont want to miss out on this deal!

If you are interested, dont hesitate to contact us at the workshop on (07) 3343 5899 or emailing us on info@ssch.com.au

Southside Cylinder Heads New Equipment

In the recent weeks, the team at Southside Cylinder Heads and Engine Reconditioning Australia have been able to upgrade and purchase two NEW and exciting pieces of equipment to further improve our already outstanding quality and service for you, our valued customers.

Warblaster Wet Media Blaster

We have now upgraded from our old dry blaster to a a brand new locally built wet media blaster, known as the “Warblaster”.southside_cylinder_heads_service_wet_media_blaster-400x300

Built right here in Brisbane, this will improve the finish and speed up the service times for all our Cylinder Heads and Engine Components.

The wet media blaster system propels a slurry of abrasive media and water against the work surface using a special  pump and compressed air, producing unique finishing capabilities and advantages such as eliminating dust, reduced media impingement, reduces stress on the components and produces a deep  clean on surfaces without chemicals.

CompAir L22 Air Compressor

We have also been lucky enough to purchase a new CompAir L22 variable speed screw air compressor.southside_cylinder_heads_service_air_compressor-320x200

The L22 is a variable speed compressor incorporating the very latest technological advances and manufacturing processes to provide users with a continuous supply of economic and reliable quality compressed air, thus improving turn around times on jobs meaning we can service our customers more efficiently.

Hopefully with this new technology we can also work towards offsetting the skyrocketing electricity bills we are all facing.

Southside Cylinder Heads, Engine Reconditioning Australia new Wet Media Blaster and Air Compressor will make the repairs and reconditioning of your cylinder heads and engine components quicker and improve efficiently and quality of our products. Please remember you can charge to your Capricorn account.

We can pick up and deliver anywhere from Brisbane and the Gold Coast suburbs, to the wider regions of Queensland and Northern New South Wales. We are a MTA and RACQ Approved Service Center.

Camshaft Scissor / Preload Gears

The scissor gear on a camshaft is designed to reduce the free play between the camshafts and eliminate any knocking noise by ensuring constant contact is being made between two mating gears.  Basically a spring loaded gear applies constant pressure on the sister gear in order to prevent any rattle or ticking noises occurring.

Fit the service bolt before removing camshafts

The best approach when handling these types of gears is to install a service bolt through the scissor gear BEFORE removing the camshaft.  Most of the time a 15-20mm long 6x1mm bolt can be used, however some applications may vary from this size.  After you refit the camshaft, simply remove the bolt and away you go.

If the camshafts are removed without installing the service bolt, the preload on the gear will be lost and you will have to reset it before re-installing the camshaft.

 

To reset the preload on a scissor gear secure the camshaft in a vice on a section that will not damage the lobes or journals.  You will need to rotate the scissor gear against spring pressure until the service bolthole lines up with the thread.  Normally a large pair of pliers or multi grips will be sufficient to do this.  Holding the gear in place with one hand fit the service bolt all the way through the gear. The bolt only needs to hold the preloaded gear in place and does not need to be any more than finger tight.

Once you have re-fitted the camshafts onto the cylinder head remove the service bolt BEFORE rotating the camshaft, if you try to turn the engine over with the service bolt fitted it will cause significant damage to the engine.

The noise caused by an incorrectly set scissor gear can be similar to a noisy hydraulic lifter or tappet.  After a cylinder head service many people make the mistake of assuming a hydraulic lifter or tappet clearance is causing an excessive ticking or rattle, but often it is the scissor/preload gear that has not been set.

Kia Rio 1.5L 2000 – 2005. Engine- A5D

Head Bolts & Maintenance Issues:

This engine consists of two head bolts at the front of the engine that are shorter than the rest. The two shorter head bolts must be fitted in the corresponding holes at the front of the engine. Fitting the longer bolts in the shorter bolt holes will cause the head bolt to bottom out and the head gasket will not seal correctly. This will result in water and oil mixing, water entering the combustion chamber in cylinder one, and external oil/water leaks around the front of the engine.

Screenshot 2015-06-28 19.08.30

These engines are also notorious for seizing camshafts as a result of poor maintenance and lack of oil changes. If you have an engine with a broken belt, be sure to check under the tappet cover for signs of oil sludge formation. If sludge build up is present, there’s a  good chance one or both of your camshafts have seized in the cylinder head.

Alternately, if your engine is still running ok but you know you’ve been a bit slack with servicing (doing more than 15,000kms without an oil change or using low quality oils), its best to check under the tappet cover for signs of sludge. If you find signs of sludge build up, you should talk to your local mechanic or give us a call as soon as possible to avoid costly engine damage.

NISSAN YD25DDTi

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There are an increasing number of reports of lower timing chain failures in Australian released Nissan YD25DDTi engines. The primary (lower) timing chain and gears are a simplex (single row) design, while t

he secondary (upper) timing chains and gears are a duplex (double row) design. The simplex chains are stretching and ultimately falling, leading to major engine component failure, including valve and piston crown contact and dam

age. It is advisable to replace the simplex timing chains and tensioners before 80,000kms.

Typically the timing chain guides and the vacuum pump timing chain sprocket and shaft are found to be heavily damaged and/or worn as well.

 

Warning on the use of Hylomar!

Most of the head gasket designs available for aftermarket use can be classified into two general categories – Composite and Steel (MLS).  Typically composite head gaskets have a steel core, usually perforated, with softer facing materials (graphite or aramid fiber) bonded on each side.  Until recently steel head gaskets consisted of four to six layers of steel bound together by a variety of mechanical methods however the trend now is for fewer layers with three or two layers not uncommon and even a single layer now in use on some applications.  Also common to these head gaskets is an impervious silicone coating or viton rubber sealant bonded to the outer layers, a key characteristic in the ability of the gasket to “cold seal”.

Gasket

 Generally speaking, almost all aftermarket head gaskets (both composite and MLS) are designed to be used without additional chemical sealants (i.e. hylomar).  The use of an additional chemical sealant on gaskets not designed for it will actually do more harm than good and affect the gaskets ability to seal.

The use of additional chemical sealants such as hylomar can affect the head gaskets ability to:

  • Cold-seal, the ability of the gasket to seal coolant until the engine is first started.
  • Cold Flow, the characteristics of the coating material to creep as the gasket is loaded (clamped), to seal small scratches and imperfections on the head and block surfaces.
  • Reduce the shearing forces that are applied to gasket sealing surfaces by thermal expansion of the cylinder head and block
  • The added thickness of an applied sealant on a head gasket can cause uneven loading and or a loss of torque retension.
  • The use of an additional sealer may also cause relaxation when temperature is introduced

Some chemical sealants may also react with the gaskets silicone coating, causing the gasket to deteriorate, and in some cases can cause the deterioration of the chemical sealer itself.

The vast majority of gaskets supplied by Southside Cylinder Heads will not require any additional sealants and the use of such products is not recommended, and may void the head gasket’s warranty.  Please read the gasket fitting instructions before fitting your next head gasket, or simply give us a call if you are unsure if your head gasket requires an additional sealant.

A Basic Guide to Engine Valve Failure

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Engine Valves

The valves in your cylinder head are a vital component of your engine and undergo enormous stresses, opening and closing up to 2500 times every minute under normal operating conditions. When one or more of these valves are damaged, the result can be anything from reduced power and poor fuel consumption, to complete engine failure.  The two most common types of valve failure are bent/broken valves and burnt valves.

Bent Valves

The most common failure of valves is bending or breaking as a result of contact with the pistons. The valves contacting the top of a piston is due to incorrect engine synchronization caused by timing chain/belt breakage and incorrect fitting of new belts and chains. If you suspect your engine may have bent or broken valves, it is crucial not to attempt to start the engine as this may result in more costly damage being caused to the cylinder head, pistons and cylinder bores.

The bent valves above are a result of a fatigued timing belt that has broken. Your timing belt doesn’t last forever and needs to be replaced according to the manufacturer’s service guidelines. Replacing your timing belt is cheap insurance against costly engine damage.

Burnt valvesValve-Piston-Diagram

The other common type of valve failure is valve burn, or burnt valves. Essentially this is caused by combustion gases escaping between the valve and valve seat when they are not sealing correctly. The hot combustion gases are forced past the valve which starts to burn away the edge of the valve, progressively getting worse the longer it is left without being rectified. Normally this type of failure affects the exhaust valves only, but it can also damage the intake valves.

A burnt valve will cause issues with your vehicle’s performance and fuel consumption. Rough idle, reduced power, backfiring, and misfire are all symptoms of valve burn. If your engine is showing symptoms like these, we recommend you get your car checked by a trusted mechanic, as continual driving with a burnt valve will cause more damage to your engine, and will in turn cost more to repair in the long run.


Possible causes of burnt valves are:

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Bent valves caused by broken timing belt

  • Excessive localized heat
  • Combustion gases escaping past the valve and concentrated at only one point
  • Irregular valve sealing with cylinder head valve seat. Carbon residues generated by irregular combustion (poor mixture) will appear at the seat region and will jeopardize the sealing between the valve and its seat
  • Deficient refrigeration is another factor, due to partial obstruction of the cylinder head cooling.  As a consequence, the valve is cooled inadequately
  • Incorrect valve clearance can jeopardize the valve sealing and also cause this type of failure
  • Running a dry fuel such as L.P.G resulting in inadequate lubrication of the valve seat, causing the valv
    A-Valve-Starting-To-Burn4

    A Valve Starting To Burn

    e seat to fail and consequently, the valves

To help prevent this type of failure, there are a few things you can do. Maintain a clean, efficient cooling system so the engine does not run too hot,  use good quality fuels to help prevent carbon build up on the valve seats, and have your mechanic regularly check the valve clearances are within specifications.

If your vehicle is using an aftermarket L.P.G fuel system, you must check that the engine is L.P.G compatible (most are NOT). In the event your engine is running L.P.G but is not L.P.G compatible, valve failure is imminent. It will generally be less costly to have your cylinder head removed and modified for L.P.G before the valves start to burn, rather than wait until the damage is done. Once the L.P.G modifications are complete, it will be safe to use

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Burnt Exhaust Valve

the L.P.G without damaging your engine.

The Damage That A Lack Of Servicing Can Cause

You may think that having your vehicle regularly serviced is not essential however the following situation that one of our customers found themselves in may cause you to reconsider!

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The piston rings are full of carbon deposits which caused low engine compression

The customer came to us earlier in the year wanting a service on his Hyundai Getz – it had done 51,000 kms & its last service was 30,000 kms ago. While carrying out the service we found that it had low compression due to the rings on the pistons being full of carbon deposits as highlighted in the picture below.

This damage was a direct result of the vehicle not having had an oil change in 30,000 kms. As a result, the engine had to be fully dismantled, cleaned and rectified costing the customer in excess of $4,000.00. Had more regular servicing been carried out on the vehicle this damage would not have occurred and the customer would only have been up for the cost of a service – a much less costly exercise!

Has it been a while since your last service? Even though you might not have experienced any repercussions yet it is most often the case that damage is already being done to your vehicle’s essential components. Don’t keep putting it off until it’s too late!

welding repair to cylinder head

Brisbane’s Best Established in 1977

Southside Cylinder Head Service Owner/Operator’s have been servicing the motor welding repair to cylinder headvehicle trade and retail client since 1957.

Making Southside Cylinder Head Service one of Brisbane’s longest serving engine reconditioning businesses and one of the most experienced in engine cylinder head diagnostics, servicing and repairs.