Synthetic oil and water

[IndianaVX]

Question
Would synthetic oil cloud up if water, or coolant
wAs mixing with it?
I am STILL dealing with the overheating issue. Thought
I had it whipped when I replaced the thermostat, and
New intake gaskets, then a couple of weeks later it
Started to smoke at start up, but quickly quit smoking
After it warmed up. Well, Monday night, it wouldn't stop
Smoking so I took the intake off, and found it FULL of
Coolant. So I replaced gaskets again, got it all
Together again fird it up, and it smoked more than before,
Killed an o2 sensor (bank 2 sensor 1).
The oil was changed just a couple of weeks ago, and looks
Like it should.......and is not milky AT ALL.
Now I'm thinking heAd gasket, but would have thought the oil
Would be milky.
If it's not head gasket, where, and how would all that coolant
Fill the intake?
Any suggestions
Thanks in advance

[etlsport]

I THINK it will.. When I go into work tomorrow morning I'll test it out

[crager34]

Have you replaced the radiator? I was having over heating issues as well and figure my thermostat was working, becuase it was sporatice. I replaced the radiator after about 161,000 miles and WOW what a difference.

[etlsport]

I mixed fresh valvoline syn power with a 50/50 mix of antifreeze and water..came out milky... Looked like cider

[IndianaVX]

Thanks etl, I kinda did the same thing, with the same result
but I used mobil 1. It was milky, which is good, I guess, who knows.....
Crager, I didn't replace the radiator, but had some of the good
old fashioned flush with the acid in it, and flushed it clean.
I'm not overheating really, I am loosinf the coolant, THEN overheating.
Another thing, when I saw all the coolant in the intake, I thought for sure
I would find cylinders full of coolant too, so I got the shopvac, made an adapter to reduce hose down to 1/2" and stuck it down to the cylinders to suck up the coolant, but, suprise, there wasn't a drop of coolant down there.
I am totally lost.
Gonna keep at it though, it's awful tough
Going from the vx, to a borrowed s-10...lol
Thanks for the input so far!
I really appreciate it!

[PK]

I seem to remember reading somewhere, that our intakes had a water gallery in them, but now I can't find it anywhere.

Coolant in the intake doesn't come from a head gasket or cracked head. There is just no way that can happen.
So for coolant to be in the intakes, it has to be leaking from somewhere else.
If our intakes do actually have a coolant gallery in them, then that must be cracked, or have a crook seal.


Of course, as per usual, I might be totally wacked out on the memory - it's all downhill after you turn 20, and I am further downhill than most on here.

I will find out for myself when I do my intake gaskets in a few weeks time.
(If I remember).

PK

[Ldub]

Is it really in the intake?....or underneath, between the heads?

There are a couple of heater hoses that run under the intake manifold, also, the throttle body has coolant circulated through it. (possibly fed by said hoses, can't remember)

..

If it's of any assistance, here's a pic of the bottom side of the intake (common chamber) that bolts to the heads.



(from sleveritt gallery)

[IndianaVX]

Dub buddy!
Turn that critter upside-down, fill it with coolant, and that's
what I got!
Still attached to the engine though!
I had to use a turkey baster to suck out the coolant before
removing it

[IndianaVX]

Pk
If it's downhill after 20, then I'm doomed at 45!
I'm pretty sure, like 98% that there are no channels running
Thru the intake, or the plenumn. And just to be clear,
I'm not talking about the intake from the airbox.
Yes there are coolant hoses coming into the throttlebody.
They are secure and as far as I can tell functioning as they should
be.
Please email me if you have questions on replacing the gaskets...
I've gotten quite good at it.....lol... Except for the coolant filling
up the intake! Lol
I have a step by step with pictures in the works, but VERY VERY
Limited computer time.
I will try to get that all wraped up soon to give you and anyone
Else a hand with it

[etlsport]

how fast were you losing coolant? i just took my oil filler off to top off my oil and found a lot of milky gunk

[IndianaVX]

I was needing to top it off every morning, and on long days, before I went home. On my last trip before replacing head gaskets, I went thru almost 2 gallons in 5 or 6 miles!

Let me know if I can be of any help. I do have a set of intake gaskets that are used, but only for 3 days max. If you find it's only the intake, you can have them.

[etlsport]

How would I be able to tell if its leaking in the intake?

[IndianaVX]

I could tell when I took the upper plenum off, the intake plenum was full of coolant.

I never was really able to trace the chain of events. Lat this summer I replaced intake gaskets. I thought the problem was fixed but 2 months later
Started having problems again, which I thought could be from me
Not using a torque wrench the first time. So I replaced the intake gaskets again, there wasn't much coolant in the intake this time. (probably due to it going thru the heads now) then a couple of days later thebig event of fogging the town with blown heAd gaskets.
I have 140,000 on the dash. I'll help you any wAy I can, I've gotten pretty familiar with all this......