Oil Catch Can installation?

[miller]

Thought it time for a new thread! Im relatively green to this so have gone and done a bit of online research along with head scratching in my engine bay

Okay based on this concept in pic 1 of a Skyline installation on a straight 6 i need to replicate the flow.

Pic 2 is my rough idea of how it goes ? please please feel free to draw over it and correct me, its my first guess and an assumption at best!

1: Pipe coloured yellow is the breather between the two 'V's ?
2: Pipe i have marked Green is the outlet breather going to goodness knows where ???
3: Pink circle and pipe is breather out towards proposed catch tank. (location TBC)
4: Blue pipe is breather return once oily air has been cleansed now where does this go and to what attachement?

[Gowf]

Ok.

Basically, you want to fit the inlet of your can to the hose that is connected to your inlet (i.e from the rear bank) and the outlet from the can back to the inlet.

That make sense?

[miller]

Like this?

Red is entry to Catch can from rear bank breather

Yellow is return from Catch can back to rear ban breather to continue in its intended direction?

In otherwords tapping into current breather in two 'L' connections?

[Gowf]

thats the boy

[miller]

and lesson over for today!

Cheers Gareth!!

[John TheAntique]

I take it you've seen this but others might not have http://www.clubvr4.com/forum/showthread.php?t=13805

[gallvr4]

time for a stupid question,but what advantage do we get for fitting an "oil catch can"....????

brendan

[miller]

I take it you've seen this but others might not have http://www.clubvr4.com/forum/showthread.php?t=13805

yes i did see that John, but i was after the installation process and the understanding behind the concept!

[miller]

time for a stupid question,but what advantage do we get for fitting an "oil catch can"....????

brendan

Im getting quite a bit of oil in my IC pipes, this is to catch blown oil from crankcase. if im still getting oil in the IC pipes after fitment then it means the Turbo seals are done for.

[gallvr4]

cheers mike.....sounds simple....feeling stupid now....!!!!

[miller]

hey Brendam....ive only learnt this today too! from my 'Turbo Seals' thread earlier

[gallvr4]

hey Brendam....ive only learnt this today too! from my 'Turbo Seals' thread earlier

just read it mike...hope you don't mind but i am going to copy ya aswell....i have a small bit of oil too....

[miller]

Okay peeps my catch can arrived today! been out and my god its gonna be tight wherever it goes. Where has everyone else installed theirs?

Mike

[Turbo_Steve]

I haven't looked, but that looks like the cam-case ventilation to me: isn't there a seperate crank-case vent which will also need a catch can?

These are usually mounted up at the top of the engine bay, but I am not sure if that is because they're shiny, or because there is a good reason.

From my point of view, the best place for this would be inside the front bumper in that big empty empty space! It would have the added benefit that draining the catch can out isn't a lengthy proposition involving hoses and spanners and stuff....you could just put a bowl underneath and open the drain plug.

[miller]

arent they both in the same chamber Steve?

Yes its a shiny catch can! well if needs must to route it south under the bumper behind the fog light then yes.

It is only air recirculating back so no pressure drop interference for me to worry about?


Mike

[Turbo_Steve]

I can't think of any reason why it wouldn't work just fine here....the only real issue is that in a collision it's going to get destroyed, either spraying oil everywhere, becoming a ballistic weapon or if it's a small crunch, leaving a nice inlet hose unblocked to suck crud into the engine.

I don't see any of these as being especially likely. The only bit to be careful of is the hose routing....the oil can really needs to be the lowest point in all the plumbing, so it might be easiest to go accross into the wing, and then down, rather than under-and-up as it were.

Isn't there a grommet behind the strut-tower...could run along the back of the engine to there and into the wing........


With regard to crank case ventilation.......no idea. I'm not in a position to have a sneakypeaky at the moment, and my legendarily cruddy memory isn't providing me with an image of crankcase vent for either the VR4 or the Evo...so maybe there isn't one? From memory, there is one on the skyrine, and definitely one on the Scoobs.

[peter thomson]

We don't have a crankcase vent to air .The pipe goes from the rear rocker cover to the inlet pipe. I fitted my catch tank next to the radiator expansion tank

[miller]

We don't have a crankcase vent to air .The pipe goes from the rear rocker cover to the inlet pipe. I fitted my catch tank next to the radiator expansion tank

Mine fits there lovely, ive tried it, but how did you fasten it? or what did you fasten it too? Have you a pic of your installation Peter?

Cheers


Mike

[peter thomson]

At the moment I have a huge cable tie holding it in place until I make up a bracket. My one may be a different shape to yours though

http://www.clubvr4.com/forum/vbpicga...?do=big&p=3339

[miller]

ahhh i see! im good with cable ties! Mines pretty much the same shape and has the option to mount it vertically or horizontally.
I think i need to source a few more metres of hose though. Do you have a close up of the connecting two pipes to the breather?
Im thinking 2x90deg hose couplers, cut the breather about 2inch from its connection to the block and tap them there?

Mike