Multiple Questions

[Mortman22]

First, what size pod filter do I ned for an XJ, I can't remember. Second, when I took the airbox off there were two tubes left over. One is very large and I assume that that is the one I need to put a small filter on and tuck away. The other is much smaller and I can't remember if that one came off the airbox or not. I thought I disconected all the tubes but I may have missed it? Is the smaller one off the airbox or is it just some sort of breather tube? If it off the airbox, should I put a filter on that too?

Thanks

[TopCatGr58]

Hey Jake/Mort,

I did a little search first, but confirmed that you need the 54mm size. Depending on what brand and what style, round vs. oval will determine whether you may have any problems with them. IF you get the kind with a prominent mounting lip on the inside, you MAY experience a stalling problem at ~6K+rpm?

The large hose is the engine PVC vent, filter on it is right.
The smaller hose is the MIddle Gear vent, just position it up under the gastank vented to air, usually is mounted to a clip near the gas tank bolt down area!
T.C.

[Parr8hed]

PVC?

[Parr8hed]

Thought that it was PCV? Just trying to get to it before Prometheus does.

[Mortman22]

Awesome, thanks guys.

[DiverRay]

Travis,
Your almost half way to Guru, and learning FAST!! Good job keeping TC strait. It is a Positive Crankcase Ventilation hose, and it should have a filter.

[HobbyMan]

Why, I thought it was Polyvinyl chloride! Do you really need a filter because it is just blowing out oily air anyway? Just curious.

[skids]

Maybe the filter keeps insects from crawling in there? Maybe it helps by keeping speckled oil spots off of your jeans and makes a more gradual staining?

Originally posted by HobbyMan
Why, I thought it was Polyvinyl chloride! Do you really need a filter because it is just blowing out oily air anyway? Just curious.

[HobbyMan]

That makes sense. The only other logical reason that I can think of is when the engine cools, maby air is sucked back in.

[fredintoon]

Venting

Hi Jake,
as has been said, both hoses are vents and went to the stock airbox so the engine could swallow it's own emissions.
Swapping to pods means you can't do that any more. You will be venting the engine and the middle gear case to atmosphere instead. If you stick a small filter on the end of each vent hose it will stop debris (or mudwasps. I've been told it happens) getting into the works.
If you stick a Positive Crankcase Ventilator (essentially, a one-way valve) on the engine vent hose it will let the engine maintain a slight partial vacuum inside the crankcase. This is allegedly a good thing.
Fred Hill, S'toon.