Catch Can Install

[Tonner]

Right off topic but I wonder what would happen on a VY11 if you connected the one from C to the valleycover vent when it was under boost.

[VX2VESS]

Right off topic but I wonder what would happen on a VY11 if you connected the one from C to the valleycover vent when it was under boost.

C to D the earlier photo ? nothing much it has a pcv valve doesn't it (not sure) which would shut off, the valve is one way only. assuming the hoses don't blow off under high boost

boosted is another problem, prob better off with a crankcase vent pump to suck out vapors even under boost or a vented system at least

[Tonner]

C to D the earlier photo ? nothing much it has a pcv valve doesn't it (not sure) which would shut off, the valve is one way only. assuming the hoses don't blow off under high boost

boosted is another problem, prob better off with a crankcase vent pump to suck out vapors even under boost or a vented system at least

Thats the one ,probably doesn't need a pcv valve. if it is meant (c) to draw at Idle

Edit, might have read that wrong, time for bed ,

[VX2VESS]

Thats the one ,probably doesn't need a pcv valve. if it is meant (c) to draw at Idle

Edit, might have read that wrong, time for bed ,

i've not looked, but must have a valve somewhere in the system, maybe not on this line. without a valve it would allow air both ways, not a big problem i spose.

OK but under boost without a valve it would pressurise the crankcase cause the car to be more smokey as it would push oil past the rings under boost into the combustion chamber. no where else for it to go, except could push the dipstick out and force oil up that way, or past other engine oil seals.

[cbwolf]

Okie dokie.

I had some time to install the catch can and things went quite well although i don't particularly like the hose that they supplied so i'll be changing it to something better soon.

Just a question though, as soon as the engine is running there's a tiny bit of visible smoke coming out of the breather, which increases when throttle is applied. Is this oil vapour? Is it normal? I'm kinda worried.

Anyway here's some pictures:

[Tonner]

Nice can, Id prefer to have a sealed system ,,,(with no vent to atmosphere). but looks good.

Whats the one from the TB connected to? The low speed draw at the manifold behind the TB is it? but a sealed system wouldn't work the way cbwoluf has it connected either.

[DaveHAT]

Get rid of that crap "braided" hose and use rubber if you don't want it to kink. The stuff that usually comes with these catchcans is crap at best and has the structural integrity of a tissue full of snot.

I'm not 100% on this but I think you've crossed the lines up somehow. The line from the PCV should go to the catch can then into the manifold not to the rocker cover.



Venting to atmosphere like you're doing with that catch can will nearly always result in oil vapour coming out thru the filter. This have why you put the catch can in the first place, to catch the vapour. I'm not sure of how significant the visible oil vapour is but if you get stopped and checked by cops and they see it, it will almost certainly result in a defect notice.

Looks pretty tidy though but piss the braided hose of and use rubber.

[VX2VESS]

Nice can, Id prefer to have a sealed system ,,,(with no vent to atmosphere). but looks good.

Whats the one from the TB connected to? The low speed draw at the manifold behind the TB is it? but a sealed system wouldn't work the way cbwoluf has it connected either.

yes where is that TB line going too? doesn't look right..looks like going below the manifold?

and yes that line is no good, you can see one hose is almost kinked off now. plus will look crappy later after the fumes etc have been going through it.

for vented cans you don't need that pcv valve either it will stop the venting on that line.

[cbwolf]

The line from the TB is going to the manifold but is blocked off in the middle. So instead of just having end caps, i ran a closed hose between the two so they're not open.

Yeh, the braided hose is really shit. I'll be buying proper hose tomorrow. As for the PCV valve, i tried to remove it, but i couldn't pull it out. Do i have to cut the hose behind the valve or can i actually remove it? And if i have to cut it out, would i just use a double ended barb to extend the hose to the can?

[VX2VESS]

The line from the TB is going to the manifold but is blocked off in the middle. So instead of just having end caps, i ran a closed hose between the two so they're not open.

Yeh, the braided hose is really shit. I'll be buying proper hose tomorrow. As for the PCV valve, i tried to remove it, but i couldn't pull it out. Do i have to cut the hose behind the valve or can i actually remove it? And if i have to cut it out, would i just use a double ended barb to extend the hose to the can?

yes that ok on that TB hose then

valve, can't recall how it comes off now. just cut it off i guess and run some new hose all the way. does yours have the plastic sort of pipe coming down along the head to the valve? i pissed that crap off as well. the right size hose will slip over that plastic tubing anyway if you want to keep it there.

[DaveHAT]

That's how I set mine up. The PCV line is just made of PVC plastic (costs $39ish to replace) so I cut into it and did the catchcan as pictured. PCV still inplace and all nice and legal.

Venting the manifold to the TB doesn't seem right.

[cbwolf]

yes that ok on that TB hose then

valve, can't recall how it comes off now. just cut it off i guess and run some new hose all the way. does yours have the plastic sort of pipe coming down along the head to the valve? i pissed that crap off as well. the right size hose will slip over that plastic tubing anyway if you want to keep it there.

Yeh it is just the plastic pipe..

I went down to enzed to check out some hoses. So i'll just cut off the pcv valve and use a barb to join the plastic hose to a new rubber hose to run to the can.

[Tonner]

That's how I set mine up. The PCV line is just made of PVC plastic (costs $39ish to replace) so I cut into it and did the catchcan as pictured. PCV still inplace and all nice and legal.

Venting the manifold to the TB doesn't seem right.

wouldn't the one on top of the TB be the one that draws full time ? nice job too.

Edit , if so that would be the one to draw from the can wouldn't it ?

whatever, I suppose you need the port that draws at wot

[JezzaB]

Another one to throw in the mix. How do think my one works?



TB is capped off. TB -> PCV -> Catch Can -> Rocker Cover..... No breather on the catch can lid... hmmm
Jez

[VX2VESS]

Yeh it is just the plastic pipe..

I went down to enzed to check out some hoses. So i'll just cut off the pcv valve and use a barb to join the plastic hose to a new rubber hose to run to the can.

just slide transmission line rubber hose (oil resistant) over the plastic pipe, should be a tight fit, don't need barbs.