3B info needed

[Brett Dikeman]

At 5:20 PM -0700 7/12/02, Bob wrote:

>Anyone have any ideas of the part number for the assembly from the
>hose that T's off the crank
>vent?  Apparently it goes up to a check valve, then to the intake
>manifold, then that piece T's off
>and goes to the carbon canistor.
>
>The question is, how much of all that do I need?

To do what?  Just replace a rotted CCBH on a 200q20v?  If so, then
you only need the lower hose; I think the part is probably on Chris
Miller's site(http://members.aol.com/c1j1miller/) or maybe
SJM's(sjmautotechnik.com)

The valve keeps crankcase gasses from making their way into the
carbon canister valve.  There is a copper flashback arrestor which
Brandon Hull discovered is very necessary(his dipstick left a nice
big dent in the hood liner, and disappeared.)  The 90 degree elbow
valve, at the top...not sure what that does.


Otherwise(say for a transplant), the way I see it you have two choices:

a)duplicate the original system to stay emissions compliant and a
Good Guy.  I would suggest implementing some sort of filte
however(Bernie Benz on the 200q20v list, for example, is using one of
those stainless steel pot scrubber things, and reports some success.)
A considerable amount of oil -vapor- makes it into the engine
again...clogs up just about everything.  Normal catch can won't do,
really, since again, the oil is in vapor form.  It causes premature
failure of the michellin man hose, mucks up the IC, throttle, intake
air temp sensor, etc...and causes excess deposits on everything from
the valves to the cats.  Translation: the crankcase breather hose
system causes a hell of a lot of trouble to the engine.

b)use a catch can with a filter, vented to the atmosphere.  For
track/off road only, since a considerable amount of nasty gasses pass
through that hose due to blowby, and are ordinarily rendered un-nasty
by being burned(how's that for technical, eh? :-)

   The carbon canister is best left still plumbed into the intake,
however, since the ECU(I think) counts on it as a source of fuel
enrichment when it opens up the CC valve.

   The most elegant solution is a set of total seal rings, but that is
generally out of the question for most folk unless they're building
anyway.  Another possibility is an air/oil separator, but one such
manufacturer has been extremely unhelpful when I've contacted
them(three times in the last couple of months.  Each time, the guy
really couldn't care less to provide much more than the minimum
information and argue with me.)

On the "less elegant but cheaper and easier front", AutoSpeed, an
Aussie magazine, has an article about building a system using an old
carbon canister box from some Ford sold only in the AU(but basically,
just a box with two connections) to hold a whole mess of the pot
scrubber coil things.  Periodic cleaning with an environmentally
friendly degreaser is all that's needed...the oil condenses on the
pot scrubbers, and not your engine guts.

Brett
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