Hello fellow petrol heads. in the past few months i have made a small experiment to see how fast the throttle body gets filled with gunk. initially when i opened the intake manifold it was full of oil residue and gunk accumulated around the butterfly valve ( mivec engine ) after around two months from cleaning it, i again opened the intake manifold and noticed already like 20% of gunk accumulated again .
taking in to consideration that i am using a very good fully syntactic oil that is changed regularly , i started thinking of some alternative options to prevent this from this happening again . thats when the CatchCAN came to my mind . and started considering to install a CATCH CAN to my Pajero, but a lot of controversy in the articles and on YouTube when it comes to this topic. what i have reached to the following :
1. for diesel engines its very helpful and recommended., but for petrol its not clear .
2. As the mechanism of a catchCan is to slows down the oil vapor coming out of the combustion chamber eventually cooling down and precipitate, this can cause a pressure buildup in the engine which might blow up the PCV valve ( some may say this depends on the quality of the catch can).
3. you can always use intake manifold cleaners from liquimolly and others that they claim that you just spray it in while the engine is running( but do you really want all the gunk and dirt to go down your engine and the Catalytic converter ??
4. Maybe stick to the old fashion way of cleaning the intake manifold by dismantling and cleaning it .
I would like to hear from you guys if you have had any personal experience with installing a CATCH CAN on to your vehicles.
Cheers ...