another breathing problem


KEVTI

KEVTI

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Joined
Oct 15, 2010
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356
hi guys, just got home from work and gave it abit of a blast on the way back, opend the bonnet and the breather can is half full. i have done some research and apparently the reason is because i have removed the black box and just running the two lines from the crank case. apparently the way to over come this is to weld the two attatchments onto the rocker cover and run another two lines to them. will this work ? also when making the vented rockercover, does it need to be baffled or something els ? or is it just welded strait on? thanks
 
I run 2 ports from the valve/rocker cover which are baffled, to the breather tank, 1 from the back of the block, and a return line to the opposite available block port. 3 breathers, 1 return line.
 
tama666 said:
I run 2 ports from the valve/rocker cover which are baffled, to the breather tank, 1 from the back of the block, and a return line to the opposite available block port. 3 breathers, 1 return line.
Click to expand...

hi tamma666
how did you baffle the rocker cover ? the return isnt essential is it? i need to make some room to fit another catch can!

cheers
 
My rocker cover is welded with two -10AN fittings and baffled/filtered on the inside. [you only want the fumes, not the actual oil]
Return line is necessary for me or it will overflow to quickly making me pull off track under 20 minutes. I just send it all back to be reused as I will change oil regardless after that track day. [I still need to add oil after 40 - 60 minutes of flogging the engine]

check this out as a possible option, pricy but small!
Relocate the battery to the rear, it helps balance weight too by moving the battery. The below tank sits in the battery location.
 
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that is one hell of a kit! just wish i knew it was there before i done all mine! ye i think relocating the battery is my best option to be honest. i find it strange how the can has only just started filling up after fitting the new core plug and chemical meatling it in.(the old one fell out coz it was too loose!) im thinking maby the old one was leaking abit which reduced the pressure in the crank case. what was used as a filter in the rockercover ? and how was it mounted ? im going to have to make one to overcome this problem i think so need to know as much as possible. thanks for the help though mate
 
pic of mine below, Ill find a photo of how its filtered within the rocker. basicly its a weld in screen, nothing high tech, just a metal screen deal.

3 top ports on the breather are venting into the box, the lower port goes back to the block.
dsc0054ok.jpg
 
Look in the hole on the below pic, this is what it looks like in the rocker cover but much smaller...simple weld in screen.

images
 
tama666 said:
pic of mine below, Ill find a photo of how its filtered within the rocker. basicly its a weld in screen, nothing high tech, just a metal screen deal.

3 top ports on the breather are venting into the box, the lower port goes back to the block.
dsc0054ok.jpg
Click to expand...

that is a great setup! ye that would be great if you could get a pic. so is it just a plate with holes in ?
 
tama666 said:
Look in the hole on the below pic, this is what it looks like in the rocker cover but much smaller...simple weld in screen.

images
Click to expand...

and that works enough to stop the oil going through ? would it make much difference if i didnt have the baffle ? or if i fitted a foam filter ?
 
KEVTI said:
and that works enough to stop the oil going through ? would it make much difference if i didnt have the baffle ? or if i fitted a foam filter ?
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Not foam or anything that can fall off and into the valve system.
What you could do is angle the hose up where they connect to the valve cover to do somewhat the same thing but without any baffles.

What you try to prevent is the oil from splashing into the hose causing excess oil to leave and go into the tank, that is all you are trying to do with the baffles. So an uphill route with the hoses angled up at the connection should do the trick if no baffles are being used...
 
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again, you are just trying to prevent directly splashing into the hose/port. Nothing more really.
 
Honestly, if you are not using a return line from the tank to the block, you should at minimum use a baffle setup. I highly recommend to use a return line setup over not as well as baffles.
Or put it back to a stock setup.
 
tama666 said:
Honestly, if you are not using a return line from the tank to the block, you should at minimum use a baffle setup. I highly recommend to use a return line setup over not as well as baffles.
Or put it back to a stock setup.
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hi tamma, i think i will use a baffle in the rocker cover as you recommended and im going to try and fit an oil retern as wrll. On your zetup you only have 4 lines two to the block and two to the rocker cover. What did you do with the 10mm one on the block just under the inlet mani and the other one that is std on the rocker cover by the oil cap ? Im thinking of making a can to fit were the battery is.

Cheers
 
KEVTI said:
What did you do with the 10mm one on the block just under the inlet mani and the other one that is std on the rocker cover by the oil cap ? Im thinking of making a can to fit were the battery is.

Cheers
Click to expand...

Plug'em

Thinking of making your own tank?
Have at it, be sure to include baffles within the tank.
Increased surface area is what you are after with-in the tank to allow all the vapor to cling to all the walls, return to a liquid form, drip down into the tank and return back to the block via return line. Lastly, be sure to mount the tank high up in the engine bay to allow drain back.
 
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So the water vapour and oil that goes back into block, will this be detrimental to your oil?
 
tama666 said:
Plug'em

Thinking of making your own tank?
Have at it, be sure to include baffles within the tank.
Increased surface area is what you are after with-in the tank to allow all the vapor to cling to all the walls, return to a liquid form, drip down into the tank and return back to the block via return line. Lastly, be sure to mount the tank high up in the engine bay to allow drain back.
Click to expand...

sorry mate didnk know you replied. Ok so i will block them off. Why would i need baffles in the tank then ? Wouldnt it be better without baffles so it will allow the oil to drain strait back ? Im going to make a battery sized box out of stainless with the 4 unions like you said. Also does water get into the oil ? Because when i drain the can it is full of contaminated oil so i cannot reuse it.
 
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