It's been 10.5 weeks since I last drained my catch can. Mixed driving types over the period (some serious long distance drives, and some short town trips).

I was a bit surprised when so much fluid came gushing out! I spilt a fair bit on the floor after the first little container got overfilled! Looks like I probably had about 200ml before I spilt some.

The fluid was again a blend of fuel, oil and water. Smelt like oily fuel. Pretty manky stuff!

So the catch can is definately working, and I'm glad it's there to stop that crap going into my turbo/engine.

Anyone know the volume of the Saikou Michi Stage 3 OCC?

Niiiiiiice. Bloody Marys anyone?

Hope that's not the wife's best Pyrex jug

Hope that's not the wife's best Pyrex jug

thats some amount. i really need to get round to this

Hope that's not the wife's best Pyrex jug

No, just the girlfriends!

I left the jug in the kitchen and now the whole place stinks of petrol! Woops.......

Smells like motorsport!

You should sell that idea to Glade

Smells like motorsport!

I love the smell of motorsport in the morning ...................................

It's pretty icky stuff isn't it?

If that's what it takes out of the system then i really need to get one sorted

Where does that go if theres no catch can, back through the engine I guess and then burnt or what exactly ???

Where does that go if theres no catch can, back through the engine I guess and then burnt or what exactly ???

It sits in the intercooler for a while and then get burnt in the engine, though a lot seems to stay in the intercooler. On a diesel it accumulates as what looks like tar in the egr valve.

I have the advantage of a see through catch can. Because my car's a diesel what accumulates in it looks well manky.

It goes through the turbo at one point which is just as worrying!

Once the oil vapour gets ventilated out of the crankcase it goes back into the engine via the airbox and through the turbo to the intercooler. At that point it's vapour but when it hits the intercooler it turns to liquid again which is what you find in the bottom of the intercooler.

I really should get round to fitting one of these but I missed the group buy last year :(

Edited 20 May, 201016 yr by chicken_eyebrow

thats my next mod my thinks!

Is there any point on a high miler though ?

Mines done 104 K surely it's all gummed up by now

Is there any point on a high miler though ?

Mines done 104 K surely it's all gummed up by now

least it won't get any worse.

I clean all the **** out of the intercooler and boost pipework on mine once a year so I guess if I had a catch can fitted I wouldn't have to worry about that, just empty the can every time it starts getting full

Edited 20 May, 201016 yr by chicken_eyebrow

how many people would be interested in doing another group buy im in the market for one may be its something we could look at

this thread has mad me badger my fabricator mate this morning it turns out he'd lost the dimensions that i sent him re emailed them today and he has said he will try and get one made up and get some pics to me so i can post some up

Yeah I'd be up for a group buy

This was in the bottom of my SMIC when I took it off:

This was in the bottom of my SMIC when I took it off:

Well there's your problem, you car won't run on marmite!

Well there's your problem, you car won't run on marmite!

It's all Vegemite down here!

Where does that go if theres no catch can, back through the engine I guess and then burnt or what exactly ???

Yeah pretty much!

• Firstly it would pass through the OE breather pipework, which is why they crumble and fall apart.
  
• Then through the one-way valve under the inlet manifold (when the throttle is closed), and PCV on the turbo intake hose. Which causes these valves to get gummed up.
  
• Then down the turbo intake, and into the compressor housing. Probably pooling in the bottom of the comp cover when the engine is off.
  
• Then it runs along the high pressure pipework to the intercooler. On it's way it finds its way into the DV and N75, increasing the chance of issues with these valves. Results of this can be seen on the rear boost hose running to the pancake pipe. They always appear to be weeping oil, and this is what it is.
  
• Once in the intercooler, most of the vapours get condensed, and the intercooler begins to fill up over time. Reducing it's efficiency, which results in less power for you.
  
• The vapours then travel on to the throttle body, causing the famous 17705 fault code, as the TB gets gunked up over time.
  
• Then the vapours gather in the intake manifold, which in theory can travel into any of the cars vacuum systems (brake servo line one-way valves for example).
  
• Then finally the vapours get burnt, and chucked out with the rest of the emissions.
  

Makes you realise that a catch can could prevent alot of common issues on this engine!

A lad at work brought in a Ford Pop 500bhp dragster today!! Massive V8 sounds orgasmic! It actually caused my ears to ring when he revved it! His breather system vents directly to the exhaust. Hose off each rocker cover, through a pair of one-way valves, then onto a pipe welded into each of the two exhaust pipes. Nice and simple! Not exactly EURO-4 compliant though....

Mmmm,really must get round to fitting a catch can,only quandary is whether to follow Robs excellent quide or this one that removes even more junk.......answers on a postcard..etc...

http://fendubbers.forummotion.com/how-to-section-f31/18-t-pcv-simplification-t7454.htm

This is mine...

I cannot believe how much was taken out

Edited 21 May, 201016 yr by Bertee