Crankcase breather

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01 Nov 2012 19:01 - 01 Nov 2012 19:02 #1 by dandjcr
dandjcr created the topic: Crankcase breather
Forum Home > On the Road > Crankcase breather

Peter & Sandra James Oka 374
Member
Posts: 412
Now I've got rid of the leaky gearbox and transfer case, the engine breather tube is the only thing dropping oil.
Has anyone plumbed it back into the intake via a PCV type valve or catch can system?
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Oka 374 LT Van

March 11, 2012 at 2:06 PM Flag Quote & Reply

Pete Fox
Member
Posts: 140
Peter
"Now I've got rid of the leaky gearbox and transfer case, the engine breather tube is the only thing dropping oil."
Off topic I know, but can you post up some details on your conversion to auto transmission, some idea of components etc.
Thanks
Pete
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Peter Fox

OKA 266 Multi-cab.

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March 11, 2012 at 3:58 PM Flag Quote & Reply

Peter & Sandra James Oka 374
Member
Posts: 412




Will do but I'll create another post with that as the subject.
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Oka 374 LT Van

March 11, 2012 at 6:14 PM Flag Quote & Reply

Dandj
Member
Posts: 367
Peter & Sandra,
Tim Forsyth redirected the crankcase breather to the air inlet on Oka 072 (now owned by James and Usha) as part of an intercooler upgrade.
There is a brief comment in this article, towards the end.
It appears to be connected after the turbo/intercooler so a one way valve would be required to avoid pressurising the sump. It would seem to be better to connect the breather to the air inlet before the turbo.
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David and Janet Ribbans, Oka 148

March 11, 2012 at 10:59 PM Flag Quote & Reply

Dave and Pauline Gray
Member
Posts: 84
Peter & Sandra
I had similar problem with the oil drip from the breather so I pulled the rocker cover off to see if there is a fiter to catch the oil and let the pressure escape but there is only a baffle type system so with the aid of some retic hose and fittings I rerouted the outer line up from the outlet on the rocker cover about 4inches before angleing it back down now only the air escapes and the oil residue returns back inrto the rocker cover this in turn reduced the engines oil consumption by half and no drip.
Cheers Dave
March 12, 2012 at 11:21 AM Flag Quote & Reply

Tony Lee
Member
Posts: 539
Thanks Dave - cheap and easy, so no big deal if it doesn't do anything. My kind of mod.
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Tony

picasaweb.google.com/114611728110254134379

March 13, 2012 at 12:05 AM Flag Quote & Reply

Peter & Sandra James Oka 374
Member
Posts: 412
Sounds like a great idea, will do that which should solve the problem.
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Oka 374 LT Van

March 13, 2012 at 11:13 AM Flag Quote & Reply

Dandj
Member
Posts: 367
Here's a pic of Dave's breather pipe mod that he sent to me.

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David and Janet Ribbans, Oka 148

March 13, 2012 at 4:59 PM Flag Quote & Reply

Peter & Sandra James Oka 374
Member
Posts: 412
Exactly what I did this afternoon, the plastic hose is 19mm ID so the plastic garden watering system fittings work well, complete with cable ties to lock the hose to the fittings.
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Oka 374 LT Van

March 13, 2012 at 5:18 PM Flag Quote & Reply

Dave and Pauline Gray
Member
Posts: 84
I thought about filling the vertical section of pipe with a wire wool product but didnt as I was worried it might just work its way back into the engine but I did that mod 2years ago and to date and about 25000ks it has worked ok .
Cheers dave
March 13, 2012 at 6:51 PM

David and Janet Ribbans - Oka 148
Oka148 profile here.
Visit our technical and travel blogs: here.
Last Edit: 01 Nov 2012 19:02 by dandjcr.

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