There are a few reasons why one would wanna install a separate oil catch tank. The blowby vapors that end up in an engine’s crankcase contain moisture as well as combustion byproducts and unburned fuel vapors. The crankcase is sealed to prevent the escape of these gases into the atmosphere, but the vapors must be removed to prevent oil contamination that leads to sludge formation. The positive crankcase ventilation (PCV) system siphons these vapors from the crankcase and routes them into the intake manifold so they can be reburned in the engine. With a separate oil catch tank (OCT) system, you can have purely gasoline-air mixture without any hydrocarbons from your engine oil, which comes from the PCV. Better mixture equals to better power output! This gas produced from the PCV system is separated to an external OCT and when the level of oil in the OCT is full, you would have to manually empty it.It's an honor that Kev called me up to help him DIY his OCT. He has already got the OCT installed to his car, by simply using cable ties. I didn't really ask him about what brand he is using but he mentioned that his oil catch tank is RM130 (Kev, please clarify in the comment :)). And my job is just only to route the hose from the PCV outlet to the OCT, and OCT to the intake manifold.You are going to need some simple tools here:
Screwdriver, the longer the better (Phillips and Flat head)
Knife or big scissors
10mm T-wrench or socket wrench (preferably small and long type)
10mm fuel hose
2 x hose clips
Cable ties (optional)
A 3rd hand (Kev's car dem stuffy and packed inside.. Not enough hand to hold to everything)
First, locate the air filter box and unscrew 4 Phillips head screw as indicated by the picture below:Then remove the air filter element and you will get to see the image as below. Loosen the two 10mm bolts below by using your T-wrench. Kev has his car Ultra Racing-ed so it's very hard to access the area. Therefore, longer tools are much more preferable to do his car. Else, i think normal ones should be fine. Btw, notice that his car got a 'surbo' inside, called 'surbo' ka Kev?Locate the PCV hose as indicated by the picture below. All PCV hoses connections are generally the same. If your car is not a Neo, just observe the engine head cover (valve cover) and find a hose that is connected between the cover and the intake manifold. Below shows the original PCV hose from the engine head cover to the intake manifold:Start measuring and cutting the new fuel hose to length with distance from the valve head cover (PCV outlet) to the OCT and OCT to the intake manifold nozzle. Remember to put in your hose clips before pushing the hose to the nozzles (i notice that the original setup for the intake manifold nozzle does not have a hose clip, so i just plug it in without hose clip). Route your hoses neatly. Below is the picture showing the connection from the intake manifold nozzle.Almost done now.Put back everything which you have dismantled. Double check connections and make sure all necessary screws and bolts are properly tighten. Cable tie the hose to make it look neater. Installation completed.Make sure the that the hose clip's screws are on the outside so that it can fit in, as the gap in between is very small.CONCLUSION: Time take is less than half and hour, a very easy thing to do. The fuel hose was at a cost of RM3.50 per foot (6 feet were used) and RM1.50 for each hose clip. And also thanks to Kev for trusting my DIY skills to 'lay a hand on' the inside of his second wife, LOL.
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