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May 15, 2004
Well...
I'll tell you Jens. It sounds like the head
gasket hasn't taken completely. And
obviously, you have a coolant leak in
engine compartment in any event.
This must be found and fixed. It may
be leaking from between the head and
block (which you already expect)
when the cooling system is fully
pressurized, further indicating head gasket sealing problems.
Sounds to me that once you warm it up,
the head gasket seals more fully as parts swell due to heat. So the
whitish/gray
smoke disappears accordingly.
Head Gasket:
I don't think it's fully taken. Nothing to lose
by re-torquing it at this point, whether you
are supposed to or not.
BTW...
Check the bottom of your OIL FILLER
cap for grey sludge. If water is getting
"inside" the block (and not just the combustion chamber) it will
normally show up in this manner.
Also, the next time you start the engine
up cold, do so without the radiator cap.
Let the motor warm to open the stat and
see whether there are any "bubbles" in
the coolant by peering down the rad.
filler. If the head gasket is leaking you
should see some bubbles in there.
Oil pressure..do not run the engine any
further. Something is definitely amiss.
Check the accuracy of your oil pressure
gauge with another. With oil pressure this
low (assuming the gauge is accurate), your bearings will be toast in no
time as
low oil pressure fries bearings!
If the gauge is accurate, then
it could be anything from a stuck
oil pressure reliefe valve to a failing
oil pump, assuming no noise from the
bearings.
The fact the oil pressure changed when
you changed oil is more than a coicidence
I'm sure, but I can't think of a reason why,
most especially since you went to heavier
mineral oil and 20/50 at that. But just to
be sure, pull the current filter and replace
it with a new one. Most likely the oil press. reliefe valve, but you
never know.
One thing I do know. Running the engine
with insufficient oil pressure is a definite
no-no. You must fix the problem or risk
losing the motor otherwise. No choice,
really.
Cap'n. Bob
'60 :{)
PilotRob@... 32098
Posted on May 15, 2004 05:45 PM
Posted to category(s) Cooling System | Cylinder Head | Engine (external) | Engine (internal) | Gauges | Intake System | Lubrication System | Miscellaneous | Technical Info | Tuning
