The Bear
07-05-2001, 09:17 PM
Ok . I have a technical problem. This is the situation.
94 YJ 41000 miles
4.0 5- speed
Conservitvly Supercharged 3 to 4 pounds boost
By-Pass valve installed
Bi-Pass valve hose Diamiter ½ inch
1-Way valves installed to block boost to Fuel Reg., M.A.P.sensor
and C.C.V. Ventilation system orifice. Thease 1-way valves are set up so
when going from boost to vacuum they also bleed to
barometric pressure. So no residual Boost or vacuum is held with in the
sensor/valve circuit .
The large C.C.V. hosr from the front of the valve cover is open to
barometric pressure With a small filter on it .
At cruise speed I am pulling 3 to 5 HGs of vacuum.
At idle 15 HGs.
Engine runs great Lots of power – no missing. Stronge running engine .
All sensors are new. New Plugs, Wires, Didstributer Halo effect switch.
I just had the rear main seal replaced
Open Exhaust no restrictions except muffler.
The Problem I am having is it seems the charger boost is making
it into the crankcase. Oil is leaking
from around my dip stick tube .Leaking from the top where the
dip stick goes in. If the large hose from the valve cover is
open,and the orifice hose is blocked from boost.
how can a pressure be present in the oil pan . One of the
Technitions I talk to says we have to find a way to vent that crankcase.
how can I do it . The large hose from the valve cover was hooked to the
old air filter housing, Thus allways creating a vacuum state in the valve
cover . First of all I font want that engine blow by and oil being
sucked through my supercharger . And getting all the plumbing sooty
and oiley. Why is pressure presant and how can I fix this problem . I plan on removing the filter off the large hose to see if it helps. Any one run across this problem befor???
Any sugjestions ????
Bear
94 YJ 41000 miles
4.0 5- speed
Conservitvly Supercharged 3 to 4 pounds boost
By-Pass valve installed
Bi-Pass valve hose Diamiter ½ inch
1-Way valves installed to block boost to Fuel Reg., M.A.P.sensor
and C.C.V. Ventilation system orifice. Thease 1-way valves are set up so
when going from boost to vacuum they also bleed to
barometric pressure. So no residual Boost or vacuum is held with in the
sensor/valve circuit .
The large C.C.V. hosr from the front of the valve cover is open to
barometric pressure With a small filter on it .
At cruise speed I am pulling 3 to 5 HGs of vacuum.
At idle 15 HGs.
Engine runs great Lots of power – no missing. Stronge running engine .
All sensors are new. New Plugs, Wires, Didstributer Halo effect switch.
I just had the rear main seal replaced
Open Exhaust no restrictions except muffler.
The Problem I am having is it seems the charger boost is making
it into the crankcase. Oil is leaking
from around my dip stick tube .Leaking from the top where the
dip stick goes in. If the large hose from the valve cover is
open,and the orifice hose is blocked from boost.
how can a pressure be present in the oil pan . One of the
Technitions I talk to says we have to find a way to vent that crankcase.
how can I do it . The large hose from the valve cover was hooked to the
old air filter housing, Thus allways creating a vacuum state in the valve
cover . First of all I font want that engine blow by and oil being
sucked through my supercharger . And getting all the plumbing sooty
and oiley. Why is pressure presant and how can I fix this problem . I plan on removing the filter off the large hose to see if it helps. Any one run across this problem befor???
Any sugjestions ????
Bear