An oil catch can is an accessory that captures and filters excess oil from entering the engine’s intake manifold. It’s not always fitted by manufacturers in vehicles, but they are commonly found in diesel, turbocharged and supercharged engines. OIL CATCH CAN IN THE VIDEO (AMAZON LINK): https://amzn.to/4de9h0H An OCC (oil catch can) has multiple purposes. Here are some of the most common: Oil catch cans are often fitted as an aftermarket accessory to optimise engine performance They help reduce emissions to ensure a vehicle complies with regulations They help protect engine parts from contaminants Also known as oil/air separators, OCCs capture oil droplets or mist from the circulating air in the engine breather and the engine’s intake system. Depending on the vehicle, this oil/air mixture also circulates through an EGR system (exhaust gas recirculation) and is then sent back into the engine intake. The problem with this is the potential for clogging over time as excess amounts of oil build up on the inlet. This leads to ineffective performance and increased emissions since exhaust gasses can’t be recirculated effectively. An oil catch can is used to filter and catch the excess oil before recirculation. Its other goal is to prevent oil mist or vapour from reaching the positive crankcase ventilation valves, known as blow-by. Blow-by is the loss of compression as it leaks past the piston rings into the positive crankcase ventilation valve, causing positive crankcase pressure. Once the oil droplets have been caught, clean air can be passed back into the engine intake for an optimised combustion chamber. Catch cans can be retrofitted into many vehicles but are common in diesel and turbo-charged port-injected engines due to their increased emissions output. Using an oil catch can is known toextend the lifespan of components in the EGR system and the engine. Some (usually older) cars were designed with crankcase breathers that vented the exhaust gas mixture directly into the atmosphere. As emissions restrictions come into place and laws become more strict, this is no longer possible. Hence the need for EGR systems and the oil catch can. An oil catch can is often an addition to an existing engine and can be fitted into tight space restrictions. Some vehicles place it between the positive crankshaft ventilation valve (PCV) and the air intake port system. A hose is connected to the catch can where the air/oil mixture is directed through it. The dirty air passes through the filter, and once all the oil is collected, it exits as clean air back into the intake. (This may vary depending on the vehicle). More About BundysGarage: https://goo.gl/qv3Wzc Questions, Comments, Concerns: bundysgarage@gmail.com Twitter: https://twitter.com/bundysgarage @bundysgarage On The Web: http://www.bundysgarage.com Music by Randall Kent: As seen on NCIS https://youtu.be/iYwsjia4GtI All Rights Reserved 2024 © Copyright 2024 Bundys Garage All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part with out the express written permission. Contact: bundysgarage@gmail.com DISCLAIMER - DISCLAIMER - DISCLAIMER Due to factors beyond the control of BundysGarage, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. BundysGarage assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. BundysGarage recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of BundysGarage, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the end user and not BundysGarage nor any of it’s subsidiaries.