Joe Curry wrote:
> This is exactly the situation that caused me to seek a better solution. I
> had a vented oil cap and
> the valve cover was open to the atmosphere and
> still the oil poured out
Whoa, I did a double take on this one. Apologies if
this sounds pedantic, but just to be clear...
Are we talking about a vented oil cap, or a valve cover
with a vent on it?
The valve cover I am referring to is this one:
http://www.brit.ca/~tboicey/midget/pics/midget_overdrive_day_five_5.jpg
...and the vent I am referring to is the steel elbow
coming down off the middle.
There are also "vented oil caps" which are oil
filler caps which are not fully airtight, they
have tiny holes and sometimes diaphragms in them,
or felt filters, and so on.
These "vented caps" are not meant to vent a whole
crankcase, they are only used when another crankcase
venting system is in place, like the downpipe on
fifties cars.
Just having a "vented cap" but no proper valve
cover vent, just isn't enough venting and could
explain your oil leaking problems. The vent in
those caps is really just a pinhole, and easily
clogged.
When a recirculating system is in use, the oil filler
cap is the "unvented" type, which is the type you
would want along with some real venting system like
perhaps this one on my car:
http://www.brit.ca/~tboicey/midget/pics/midget_overdrive_day_seven_2.jpg
--
Trevor Boicey, P. Eng.
Ottawa, Canada, tboicey@brit.ca
ICQ #17432933 http://www.brit.ca/~tboicey/
"Citizens of Blaine, do not be alarmed!"
|
