"z" <gzuckier@snail-mail.net> wrote in news:1171393512.507664.155340
@v45g2000cwv.googlegroups.com:

> Like a lot of folks, I got tired of the air inlet for the PCV from the
> big air pipe after the air cleaner, puking up oil every once in a
> while and gumming up the throttle body,



If it's "puking up oil" then you've got a blowby or a sludge problem.
That's NOT normal.



> so I decided to swap over to
> one of those cute little filters that go over the inlet on the cam
> cover.



You'd have been wiser to spend your time and money figuring out what's
wrong with your engine instead.



(this is a honda b16 4 cylinder). The factory has that inlet
> connected with a short little hose to like an 11 mm diameter piece of
> steel tubing that goes into the air pipe. But that piece of tubing is
> siamesed for a ways with another piece of steel tubing which has a
> long hose at either end that goes from the block to the throttle body;
> since the hose at either end is plenty long enough I just took out the
> whole thing and used a piece of hose to go straight through, which is
> when I discovered it's a coolant hose.


Yep. Runs under the throttle body.


>
> So, the question is, why, instead of just running a foot of hose to
> carry the coolant to the throttle body, do they use a foot of hose to
> run it through a steel tube siamesed to the steel tube that carries
> the input air for the PCV and then out another foot of hose? Are they
> trying to heat the air for the PCV up before it gets into the engine?


That's possible. Icing can be a problem with small diameter lines that
carry ambient-temp air.

Although if that were the aim, don't you think they'd bond the two lines
together directly instead of insulating them from each other with that
black rubber thingy?


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/