Catch can oil fumes ??
#2
Scooby Regular
I get that too, like a mixture of oil and fuel. Not like a smokey smell, fumes. I tend to get the fumes on higher gear pulls, 4th, 5th and 6th.
I put it down to my Mocal catch can having a ventilated cap.
Rather that though than smoke out the exhaust on start up.
Mines a forged 2.5 STi.
It's either that or I do have a slight weep on my drivers side rocker cover.
Here's my can, fits nicely where the secondary air pump was :
https://www.merlinmotorsport.co.uk/p...luminium-m-ct3
What made you get a can fitted?
I put it down to my Mocal catch can having a ventilated cap.
Rather that though than smoke out the exhaust on start up.
Mines a forged 2.5 STi.
It's either that or I do have a slight weep on my drivers side rocker cover.
Here's my can, fits nicely where the secondary air pump was :
https://www.merlinmotorsport.co.uk/p...luminium-m-ct3
What made you get a can fitted?
Last edited by Hawkeye D; 18 November 2017 at 09:38 AM.
#4
Scooby Regular
It's strange though in my case because where the oil consumption on my build stopped as soon as the can was fitted, my can doesn't actually catch anything.
I was expecting maybe a teaspoon on oil in there after every run, but I get more like just vapour residue.
I wonder now if all I needed to stop the consumption and smoking on start up was a new PCV valve.
I was expecting maybe a teaspoon on oil in there after every run, but I get more like just vapour residue.
I wonder now if all I needed to stop the consumption and smoking on start up was a new PCV valve.
#7
Scooby Regular
Any pics on how yours is plumbed in Trev?
Where my PCV was is just blocked off with a small piece of Samco hose with a metal bung in it.
Last edited by Hawkeye D; 18 November 2017 at 10:46 AM.
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#10
Scooby Regular
iTrader: (2)
[I]to the right the red pipes T from the head breathers and run to the small inline head filter. The 2 large black pipes, one connected to the crankcase breather which runs to the catch can, the 2nd runs back to the turbo intake pipe. The blue pipe in the foreground is the connection to the turbo inlet from the head CC.
pic of the two catch cans, red pipes- heads, runs back to the turbo inlet. Black catch can which has drain plug at bottom, both have internal gauzing
red pipe/ blue connection pipe to turbo inlet.<br/>The metal head breather pipes had to be replaced with the installation of the Grimmespeed top mount
The head CC which is actually no more than an inline steel mesh filter, I've always found adequate as the heads never produce anything.
Trev
#11
Scooby Regular
I'm running an OBP 3 port catch can with the breather on top, VTA.
I've run a bit of hose from the breather down the side of the gearbox with a filter on the end of it. Seems to keep most of the stink away.
I've run a bit of hose from the breather down the side of the gearbox with a filter on the end of it. Seems to keep most of the stink away.
#14
Scooby Regular
Might help to upload some pics mate. Mine is just vent to air, so 2x head vents and 1x block vent into can, then I've run a hose from the breather on top down the side of the gearbox. My PCV valve is removed and blanked off and nothing returns to my engine.