Hello, has anyone fitted a catch can to a 1.2 TSI? Since it doesn't have a PCV valve I don't know how it would be installed.

My car suffers from lots of blow by, my charge pipe that leads to the throttle body is filled with oil and the charge pipe too, it was all cleaned a few months ago and so was the engine below it, but is "dripping" again onto the engine.

Left side of pressure pipe.

Right side.

Edited 18 December, 20178 yr by Filipelol
misspells

The PCV valve is missing! 

 

It plugs into that small black rubber grommet in the cam cover. Item 21 here

 

http://www.oemepc.com/skoda/part_single/catalog/sk/markt/CZ/modell/FAB/year/2013/drive_standart/697/hg_ug/103/subcategory/103042/part_id/2541369/lang/e

 

Without it fitted oil mist blows out the grommet as per your picture!

 

The end of the PCV valve that plugs into the grommet often breaks off, the valve will be hanging off the rubber hose that connects to the airbox. IMPORTANT! If the end of the PCV valve has broken off, (its about 10-15mm long), use tweezers or long nose pliers to recover the broken bit lodged in the rubber grommet first. The grommet (item 24) also pulls out of the cam cover easily. This is a very important step as simply pushing in a new pcv valve (or the broken one) will push the broken bit of hard plastic left in the grommet into the head space, and is highly likely to find its way under a cam or follower and hold a valve open until the piston hits it. (Been there done that....) Not good....

Edited 20 December, 20178 yr by xman

1 hour ago, xman said:

@xman Thank you! I had no idea thats how it worked, and mine has indeed broken off!
Now should I try to remove the broken plastic by itself or the whole rubber grommet?

 

I would try a small screwdriver or something a sharpish point to try and prise out the hard plastic out of the grommet first as the grommet deforms a bit when pulled out so the grommet could then end up ejecting the hard plastic inwards. But failing that pull the grommet out and see if the broken bit is in there.

 

FYI a new PCV valve is only available from dealers and costs just over £16.

Edited 20 December, 20178 yr by xman

@xman thanks, very useful! I'll stop by the dealer tomorrow.

Any tips on how to prevent this from happening or there's nothing we can do?

 

Personally I think they break due to ham fisted mechanics when changing air filters etc and tugging the pipework.

@xman well this is what I'm left with, it was desintegrated, any ideas before I put the new one ? 

I've gotten a few pieces out with a tweezers but can't get anymore out.

 

Edited 23 December, 20178 yr by Filipelol

And i take it that this huge amount of oil where the throttle body connects it's due to the pcv not being connected ?

No idea about the oil in the throttle body.

 

As for the debris you have 3 options.

 

1. Get some kind of vacuuming device rigged and try to suck the bits out

 

2. Strip off the cam cover (probably very difficult and time consuming)

 

3. Ignore and install new PCV valve

 

I, by default, took option 3. When I started the engine, after 30 seconds or so the engine revs slowed suddenly and there was a loud crunching noise. Thought it was going to stall/seize, but the crunching subsided and normal idle eventually resumed. God only knows what happened. But touch wood its been ok since though I have visions of bits of hard plastic floating about in the cam cover.

 

@xman I'll try the first option, thank you for your time, enjoy your holidays 

Hello i have the same situation like filipelol. I think that my valve has fallen inside(my fault for the braking). Filipelol said to me that the black pressure pipe must be removed to access the grommet. Is this a simple operation? Should I go to a service and should I start the car or should i tow it(i didin t start it from the time i broke the valve)?

Edited 1 July, 20187 yr by Lawrence_romania

Here it describes how to take the black pressure pipe off:

https://workshop-manuals.com/skoda/fabia-mk2/power_unit/12/63;_77_kw_tsi_engine/mixture_preparation_system_electronic_inj.gas/intake_manifold_and_fuel_distributor/removing_and_installing_the_throttle_valve_control_unitj338/

In reply to LR asking me where the broken plastic bit is likely to be , whether he should strip and try and retreive and is it safe to start.

 

Well the broken bit could be still in the head space, but hopefully it will now have found its way into the sump where it may come out on the next oil drain. My Octavia it did appear to have got caught in the camshaft/valve gear and there was briefly some loud crunching and the engine almost stalled. But it seems no major damage was done, but that may be luck.

 

Forget about trying to retreive it, the cam cover is also the camshaft carrier, you'd have to strip the chain off and lots more to open it up, major, major job and it's probably not there anyway. 

 

Safe to start? You have no alternative. So I'm gonna say yes, but don't hold me responsible. 

Thank you. Is there a schematics of this engine online which I can see and better understand the fact that this piece can go to the sump?

All the oil pumped up to the camshaft gear drains down to the sump via variously positioned drainage channels along the head and the timing chain cover area.

 

If you want schematics, then you'll have to search the internet yourself, but I doubt you'll find much of use.

So in clonclusion i used a small camera and the piece was not there . I bought the valve (18 euros in romania) I fitted on and I started the engine. The engine works I did not noticed something unusual. I drove like 20 km. Thank you for your support and be carefull when removing the air filter housing.

On 19/12/2017 at 00:11, Filipelol said:

Hello, has anyone fitted a catch can.....

Right side.

I have recently installed a cheap catch can with filter etc but didnt have replaced the grommet.
I suppose didnt work as it planned cause I still have oil leaks at the spot of the valve.
The tube going to the can is dry and the can too.
I am replacing the grommet too and will update if still intersted about the catchcan.