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View Full Version : Does blow by really need to be returned to the engine?


patrolla
10th November 2013, 11:10 PM
Doing an airbox upgrade and havent really got anywhere to return the blow by back into the pre turbo piping on a TD42t. Does it really need to get put back into the combustion process or is it just for emissions control?
Winnie
10th November 2013, 11:21 PM
Legally... yes. Like you said it's just emissions control. Mine is vented to atmosphere through a catch can.
MudRunnerTD
10th November 2013, 11:23 PM
Yeah go the catch can mate. Motorcyclists will thank you ;)
macca86
11th November 2013, 12:37 AM
This is why I ride in the tyre tracks and not centre lane on road on my drz400 riding on knobbies is hard enough let alone in the wet with oil spray
viking
19th November 2013, 12:25 AM
blow by is just EGR right? I don't like the idea of it either but can you get a catch can that looks professional and like a factory fit so as to pass a quick roadside inspection and not get pinged?
MudRunnerTD
19th November 2013, 01:02 AM
blow by is just EGR right? I don't like the idea of it either but can you get a catch can that looks professional and like a factory fit so as to pass a quick roadside inspection and not get pinged?

Search eBay for a Provent 200
viking
19th November 2013, 04:22 AM
thanks mate..
BigRAWesty
19th November 2013, 07:37 AM
Blow by is crank case pressures being vented from small leaks in the engine internals..
But yes check out the provent.
AB
19th November 2013, 07:19 PM
Search eBay for a Provent 200

I really need to get onto this myself.

Anyone in particular Dazz on this link below...

http://www.ebay.com.au/sch/i.html?_trksid=p2047675.m570.l1313.TR0.TRC0.XProve nt+200&_nkw=Provent+200&_sacat=0&_from=R40
BigRAWesty
19th November 2013, 07:28 PM
Does anyone drain straight back to sump?? Or collect and dispose of??
AB
19th November 2013, 08:14 PM
Does anyone drain straight back to sump?? Or collect and dispose of??

Wouldn't that pressurise the engine?

Has anyone actually done this?
BigRAWesty
19th November 2013, 09:38 PM
Wouldn't that pressurise the engine?

Has anyone actually done this?

Wouldn't think so as its exhausting the gas / air to atmosphere but draining to sump?? Save having to empty the unit??

Anybody done this??
Drew
20th November 2013, 01:56 PM
i've got a provent and have noticed that I still have a light coating in the intercooler, nowhere near what I had before the can went in though.

Draining to the sump would be cool but thats all too difficult to me. :)