what to do with engine breather pipe,should i put a cap on it?

[vwcool]

hi folks as ive replaced just about everything on the engine the thing is now the original air filter box has gone and replaced with a k and n what to do with the 25mm breather pipe that went to the old air filter.At the moment ive got the pipe flopping about with a mini air filter like thing on the end.I dont think its much cop as for a perfect soultion,does anyone out there know of anything better coz iam sure the engine can not breath to well through this poxy little filter.Help needed cheers steve

[SammoVWT]

Cut a hole in your induction intake pipe, and link it back to the throttle vacuum, if you can get some connector tubing, it should be easy to do. You may want to drill your hose with one of those circle cutters, i'd avoid cutting with a knife as it may ruin the tight seal you will need.

Dont cap it whatever you do, it will slowly kill your car

[vwcool]

hi sammo i think i know what you mean but iam runing a carb with a pancake type filter so no induction intake pipe.if you have any ideas with the carb deal id love to hear it from you cheers.

[SammoVWT]

Pancake as in the big round ones like a hotrod would use?

I'd cut a hole into the bottom plate and seal it with a connector tube with a flange, run the pipe on to it (may need extending but doubt it - just make sure its not pinched). Are the top and bottom glued on? It would be easier to remove the lids and drill it unassembled to make sure you dont get metal shards sucked inside.

I know you can buy some with a breather attachment already welded on - ive seen it before when i was replacing my intake system

Your car will definately work better if the breather is hooked up to a vaccum as long as it has a one way valve, which I assume it would have done if you've disconnected and removed the old airbox.

Reburn that unused fuel, and if the rings are a bit loose, it may help to seal things a bit better. (Plus your pistons will have an easier downstroke in a negative pressure/vacuum situation - better low rev response) Along with removing the nasty acids etc (at least the majority of them) from condensing inside when it cools down.

[vwcool]

nice idea mate i think ill give it a go by doing this is like going back to the old system.do you think this might change the timing not that thats a prob as i have a strobe light.anyway thanks

[SammoVWT]

It wont affect your timing, only scavenges the crankcase for blowby

[vwcool]

been in the garage and done the work,it was an easy job.i cut the old breather adapter off the old air box(one end is wider like radiater ones where the rubber hose goes on sos it dont slip off with the clamp on)drilled the hole in the bottom plate pushed the bit of plastic pipe through so the wide end is on the inside(and dont pull through) then fitted the breather pipe on the under side with a clip.silicone sealed round the inside filter top back on test drive after lunch.i will let you know.thanks again

[SammoVWT]

Good stuff

[vwcool]

yep feels good the only thing that changed was the revs dropped about 400rpm but that was sortred by turning the tickoverscrew up a bit(do you know the reason for the drop in revs?)anyway alls cool iam happy and cheers for the help........now to fix the lt35 diesel.