Doodah

Hi, been running my Zetec Mk4 on a DGMS carb for a while now, it's great was leaking oil out the crank seals before I connected the breather to the inlet manifold though...duh

Want to fit the bike carbs, should I make an air box & plumb the breathers in there? Would like it to go between carbs & engine as is now but can't without a common manifold, ie bike carbs will have individual inlets for each carb & I don't want to unbalance the fuelling by connecting to just one so guess I'll have to put it before the carbs?

My theory is with throttles closed, there won't be much crankcase pressure as blow-past will be at a minimum? I've seen zetecs on bike carbs running without air box/filter (only online though) how do they do it. I need a vacuum for normal running or it WILL piss oil all over the floor, will there be enough in the air box with a K&N or similar fitted? Thanks

djmca

Im running my Zetec without an airbox for the bike carbs and its fine.

It is better to have filters but the breathers dont need to be plumbed in.

Google it, theres loads online

Doodah

Ta, did you remove the PCV valve? Just googled "Zetec bike carbs breathers" & only got 9 results, one of which was this page! I'll try again with different er...words

djmca

I dont know what the PCV valve is so i must not have it ha ha!!!

Just Google bike carbs on cars, they are all the same general principle regardless of carb type or engine type

Doodah

Just tried that & got this www.classicfordmag.co.uk/files/2011/07/CLF166.bike_.pdf article on bike carbs, should be a good read thanks bud