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crankcase ventilation system how do i do it

PostPosted: Thu Aug 09, 2012 3:59 pm
by jred
I've looked and looked and found only very vague DIY on how to do this
do you just run the lines to the can from the valve cover and thats it or is there more to it?

Image

PostPosted: Thu Aug 09, 2012 4:02 pm
by JUICE
On my LS's, you plug the hole where the PVC black box goes on the block and replace the two freeze plugs on either side of it with adapters to run hoses to. Then run two hoses to your valve cover. I'll post pics of the back of my block later.

PostPosted: Thu Aug 09, 2012 4:12 pm
by teal_dx
That's exactly how to do it on a B series :thumb:

On D series, I go from the black box & valve cover.

PostPosted: Mon Aug 20, 2012 6:20 pm
by bigpunn421
JUICE wrote:On my LS's, you plug the hole where the PVC black box goes on the block and replace the two freeze plugs on either side of it with adapters to run hoses to. Then run two hoses to your valve cover. I'll post pics of the back of my block later.



please post pictures. i need a better understanding

PostPosted: Mon Aug 20, 2012 8:02 pm
by teal_dx

PostPosted: Tue Aug 21, 2012 1:44 am
by JUICE
Image

PostPosted: Wed Aug 29, 2012 7:39 pm
by bigpunn421
thanks both of you

PostPosted: Mon Sep 03, 2012 6:07 pm
by jred
ok so I'll need 2 breather tanks or one with 4 inlets?? 2 from the valve cover and 2 from the block?

PostPosted: Mon Sep 03, 2012 8:36 pm
by rootbeer_eg
if im not mistaken the ones in the back of the block are drains for the catch can
the ones from the valve cover are to releave the crank case pressure

PostPosted: Mon Sep 03, 2012 10:29 pm
by JUICE
^^ the freeze plug adapters on the back of the block are definitely to vent the block. The catch can drain goes to the oil pan.

If you have a 4 hose can, 2 to the valve cover, 2 to the back of the block. If you have a smaller 2 hose can, run both of them to the back of the block and put a mini filter on the nipple on the valve cover.

PostPosted: Tue Sep 04, 2012 11:56 am
by jred
thanks dudes i now fully understand :thumb:
kinda simple to do when yuh think bout it :oops:
but do you have to drain it back to the engine?
seems like putting dirty oil back into your engine , can't you just collect it in the can and empty it when full?..