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Catch cans what are they and do I need one?

A catch can sits in between your crankcase and intake system, and it is designed to separate the fluid and mist from the air that makes its way through and catch it in the bottom of the unit.

By design some oil and fuel escapes from the motor with the excess pressure that builds up in the crankcase while an engine is running. This excess pressure is vented through a breather or valve and recirculated back into the engine through the intake manifold. The purpose of the catch can is to separate the oil from the air before it re-enters the engine.

Without a catch can, your engine cakes up with oily carbon deposits and soon becomes badly restricted. . Left without being cleaned, you will suffer losses in power and poor fuel economy. There are a variety of ways of cleaning motors, which can be time consuming and expensive. Avoid the build up in the first place and you’ll be in a great position.

The second reason catch cans are very important is because oil reduces the efficiency of your intercooler when it covers the pipe work. The colder the air going into the motor the better it performs, and if your intercooler doesn’t function as it should you are missing out on its potential.

Different types of catch can

Some catch can’s have filters in them, and others use mesh, steel wool or a variety of combinations. If you simply use just a can with an inlet and an outlet, you have setup that won’t work very well! The catch can will have a valve to drain the collected oil, this should be done at least every 10,000kms.

Catch can legalities

Catch can’s are 100% legal, and on some well designed diesels they actually come as standard. Sadly, this isn’t the case for your average 4WD motor. In the past, people would just run a pipe to the inside of their chassis, and let the oil film run into the chassis, for ‘rust prevention’! This is not legal.

How much do they cost?

Southside Cylinder Heads can supply and fit a catch can to most makes and models of popular diesel engines. Prices vary but generally cost between $450 – $550 fitted. They can be fitted in one day. If your engine has already travelled significant kilometres without a catch can, you may need to have the intake system removed and cleaned prior to installing the new catch can to get the maximum benefit. Call us on 07 33435899 to discuss the best option for your vehicle.

Manifold & EGR Ultrasonic Cleaning

Today’s turbo diesel technology is evolving faster than ever before, increased power output, lower fuel consumption and lower emission values are expected with every new model that manufacturers release.

To help accomplish this, most models utilize whats called an EGR system.  This is a series of ports and valves designed to divert a small percentage of the expelled exhaust gases from the exhaust system, and redirect it back into the inlet manifold and back through the engine.  This process aids in reducing an engine’s harmful emissions.

The down side, as you can see in these pictures, is the re-circulation is contributing to an excessive build up of sludgy deposits through the intake system, EGR system, EGR valves, and the inlet manifold and ports.  This buildup restricts the airflow into the combustion chamber, leaving your engine struggling to breathe.  This can have serious consequences including increased engine temperature, an increase in fuel consumption and noticeable decrease in engine power.  Left unchecked, premature engine failure is possible.

Southside Cylinder Heads has invested in state of the art ultrasonic cleaning,  perfect for cleaning the clogged inlet manifolds and EGR valves.  Fast cleaning times means your customer is off the road as least as possible, and the results are immediate and satisfying,  Almost every customer we do this service for calls us back to say what a difference it has made.

Call us today for prices and recommended service intervals.  

Brisbane’s Best Cylinder Heads, 33435899

 

Volkswagen Turbo Diesel Camshaft Issues!!

Models Affected:

 – Volkswagen Transporter T5 2004 – 2010 2.5 TD
 – Volkswagen Transporter T5 TDI 2004 – 2010 2.5 TD

Volkswagen Transporter 5 cylinder turbo diesels are having issues with the valve train.  Hydraulic lifters, camshafts and camshaft bearings are wearing out prematurely resulting in excessive noise from the engine.  The exact cause of he failure is still yet to be pinpointed but poor lubrication to the top end is likely to be playing a major part.

 

 

 

 

 

 

 

As shown in these pictures the damage can be quite severe and left unchecked will continue to damage surrounding components and engine failure will be inevitable.

 

 

 

 

 

 

 

 

If caught early you can rectify the issue by simply replacing the camshaft, all hydraulic lifters and camshaft bearings.  However if the damage has extended to the valves then the cylinder head will need to be removed for repairs also.  Southside Cylinder Heads have SST timing kit required carry out these kind of repairs on your Volkswagen.  Give us a call anytime and we can look after you 🙂

See our online store for replacement camshaft kits

 

 

 

Nissan YD25 EGR Cooler Issues

Problem:

EGR Cooler corroded or split and leaking Coolant

Vehicles Effected:

Nissan Navara D22 & D40 with YD25DDTI 2.5 Turbo Diesel Engine

Nissan Pathfinder R51 with YD25DDTI 2.5 Turbo Diesel Engine

EGR Cooler

EGR Cooler setup Nissan YD25

We are seeing more & more problems with the EGR coolers in the YD25 Nissan engine.  The coolers tend to corrode or split resulting in loss of coolant and due to the high temperature of the exhaust/EGR system the coolant loss often goes undetected as the coolant evaporates and doesn’t leave a puddle on the ground.  If the problem goes unchecked the cooling system will run dry and the engine may overheat and require major repairs.

To fix the issue some people elect to bypass the EGR system completely using blanking plates on both the exhaust and inlet manifold & disconnecting the coolant flow to the EGR cooler.  From all reports this has been an effective fix but Southside Cyl Heads doesn’t recommend this because removing the EGR will alter the vehicle’s emissions levels & render the vehicle unroadworthy

EGR Cooler Faults

Faults in the EGR cooler YD25

We recommend simply checking your coolant levels regularly and if you notice a drop in the level, get the cooling system checked and check for stains around the EGR pipe ancooler area.

Catching the problem early and rectifying the issue could save you thousands in cylinder head repairs in the event of the engine overheating.  If you suspect your EGR cooler could be leaking, give us a call and we check over the system and put your mind at ease.