Re: Oil In Intake on '92
This vintage Explorer had a problem with leaking water via the intake
manifold gasket. You might try very gently tightening the intake manifold
bolts (the lower ones). Be careful because it's an aluminum intake manifold
and if you overtighten, the manifold may crack.
This fixed my problem with water getting into the intake.
"Ulysses" <firstname.lastname@example.org> wrote in message
> <email@example.com> wrote in message
>> Ulysses wrote:
>> > When my '92 EB with the 4.0 V6 has been sitting for a while it will run
>> > rough when I first start it up and white smoke comes out of the
>> White smoke can be caused by coolant leaking into the cylinder from a
>> bad head gasket. That jibes with it happening after sitting for a
>> while, and when started running rough and then smoothing out.
>> If that's the case, you should be losing coolant, and maybe
>> overheating. One check is to fill the radiator but leave the cap off,
>> start it, push hard on the brakes, put it in gear and rev it a LITTLE-
>> 1200 rpm. Slip the clutch if it's a manual. The idea here is to load
>> the engine to increase combustion pressure in the cylinders.
>> Have someone observing the radiator coolant- if you have a bad head
>> gasket, exhaust should get into the coolant, making it bubble and
>> surge. The escaping exhaust forms big bubbles in the water jacket and
>> pushes its way out thru the radiator cap opening.
>> If the level just changes slightly when you rev and expands as it warms
>> up, all that's normal.
>> You have two, right? You can also compare them.
> Thanks Paul. This sounds like a very likely cause of my problem. I has
> been losing coolant too but I didn't think the problems were related. It
> has been "boiling over" and losing coolant through the top of the
> Bubbling exhaust from a leaking head gasket could do that, right? Could
> that also have caused my radiator to burst? I need to put in a new
> before I continue but I just wanted to make sure it was worth putting any
> more money into it. Sounds like it may continue to live.
> Yes, I have two and the other one recently started losing coolant too in
> same way so maybe a comparison won't help much. I'm pretty sure the other
> ('91) needs a new fan clutch (it turns freely when th engine is warmed up)
> and I think the thermostat is OK but now it sounds like it may have a bad
> head gasket too.