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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.

Market Leading 2 year Warranty

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Here at Southside Cylinder Heads Service, we are offering our valued customers a 2 year warranty guarantee on all exchange and reconditioned cylinder heads and engines! (conditions apply*)

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MARCH MONTHLY SPECIALS

Ford Ranger & Mazda BT50 WE 3.0L turbo diesel

New Cylinder Head Kits $1895

New complete head, vrs gasket set, head gasket and head bolts

(Fully assembled including rockers and camshafts)

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Southside Cylinder Heads is a family owned and operated engine reconditioning workshop established in 1977 specializing in aluminum cylinder head repairs.

Jump in and take advantage of this great offer by giving us a call now on 07 3343 5899, or visit us at 10/547 Kessels Road Macgregor.  

Brisbane’s Best Value Cylinder Heads.
Our services include cylinder head repairs, full engine reconditioning, alloy welding, manifold repairs, ultrasonic cleaning, and pressure testing