Coolant mixed oil

Creomod · Mar 3, 2024

I have a 92 gt that I’ve had few years. I noticed white smoke and then I looked in oil and I have the milky coolant. I cheacled the dipstick and it’s almost like mud. Where could it be mixing? I remove head a while back . I had a broken spring and wanted to take a look at the piston and swap valve(assumed. It was bent) ever scince it’s done that. How can I tell if its a head gasket? Where should I look? Compression test tells me anything about the mixing ?how can I clean out the engine without having it rebuilt? I’d like to find leak first then clean it out and fix mixing spot.Please someone help I’m about to give up and sell it if I can’t run it

Bullitt347 · Mar 3, 2024

Typically it is a head gasket failure.
Could be a cracked head, but not likely.
An Intake Manifold gasket failed at one of the coolant ports at the corners of the intake manifold is possible.

AeroCoupe · Mar 3, 2024

Cylinder leak down may tell you.

Creomod · Mar 3, 2024

Bullitt347 said:
Typically it is a head gasket failure.
Could be a cracked head, but not likely.
An Intake Manifold gasket failed at one of the coolant ports at the corners of the intake manifold is possible.

Bullitt347 said:

Typically it is a head gasket failure.
Could be a cracked head, but not likely.
An Intake Manifold gasket failed at one of the coolant ports at the corners of the intake manifold is possible.

Click to expand...

Thanks for the response. To see if it’s a head gasket failure how can I tell? Is there a way to know without starting the car? I feel like if I sell it I will regret it big time ! The cat was also running warm like 220 230 i think.

Creomod · Mar 3, 2024

AeroCoupe said:
Cylinder leak down may tell you.

How would I do that?can o do it without car on ? Reason is because I pulled out radiator and threw it in my coupe

Creomod · Mar 3, 2024

AeroCoupe said:
Cylinder leak down may tell you.

How would I do that?can o do it without car on ? Reason is because I pulled out radiator and threw it in my coupe

AeroCoupe · Mar 3, 2024

Go down to a parts store and borrow a cylinder leak down kit. You need an air compressor.

Creomod · Mar 3, 2024

Also another question. The car was running warm/got 220 230 can that temp cause heads to warp? Reason I’m asking is because id like to remove heads and redue head gasket without having heads resurfaced. I just had them done 2 years back so can I do that and get away with it? Anyone been successful doing this?Can I use a sn95 mustang 94-98 radiator or any radiator from junkyard ?

AeroCoupe · Mar 3, 2024

This guy is pretty good and his videos are mildly entertaining.

AeroCoupe · Mar 3, 2024

Yeah that’s hot man. I would have them at least checked.

Creomod · Mar 3, 2024

AeroCoupe said:
This guy is pretty good and his videos are mildly entertaining.

Why thank you for that! Now if cars running hot blown head gasket, cracked head or could it also be possible that a incorrectly installed head gasket be the issue? I use the felpro 9333s and I know that ears are facing front of block but what if I missed the 3rd stage on the tourqeing? It’s three steps? The last I’m not sure if I did it I might’ve gotten distracted. Water pump was new. When doing leak down test I’m hearing for air or feeling for air intake exhaust but dosent that just tell me if valves or open?

Noobz347 · Mar 3, 2024

If they're cast heads, it's pretty unlikely that they're warped.

If your first post was something like, "You should have seen the explosion!" then I'd say, Maybe.

AeroCoupe · Mar 3, 2024

You back the rocker arms completely off so the cylinder is “sealed”.

Creomod · Mar 3, 2024

Noobz347 said:
If they're cast heads, it's pretty unlikely that they're warped.

If your first post was something like, "You should have seen the explosion!" then I'd say, Maybe.

Yes they are e7s

Creomod · Mar 3, 2024

AeroCoupe said:
You back the rocker arms completely off so the cylinder is “sealed”.

When u said back the rocker arms slightly do you mean one by one loosen the 3/8 bolts? Take off preload?

Creomod · Mar 3, 2024

Creomod said:
Yes they are e7s

No explosion lol

2000xp8 · Mar 3, 2024

How long did you run the car like this?

AeroCoupe · Mar 3, 2024

Yes. I just take them all off so I 100% know the valves should be sealed on the seat.

Creomod · Mar 3, 2024

2000xp8 said:
How long did you run the car like this?

For a while but i haven’t driven it once innoticed the milky oil. As for the temperature a while this past summer .I haven’t had a problem with the oil but yes I do notice when I tried to burp system that I had bubbles in the radiator

Creomod · Mar 4, 2024

Update! I used compressed air and water shot right out the #2 spark plug ! I suspected the driver side because I took that head off not the passenger! How much psi should I be using in a leak down test when running just a straight hose to cylinder? Should I pull one spark plug at a time to do it? I’m in front of harbor freight and I bought the leak down tester as well. Reason I ask on psi is if I set it at tdc on a cylinder and it has too much psi won’t that drop my piston then having a hard time trying to test next cylinder in firing order cuz the engine turned?

Coolant mixed oil

Creomod

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Bullitt347

I have been doing it wrong this whole time

AeroCoupe

lube between the nut and the face. I know my lubes

Creomod

Creomod

Creomod

AeroCoupe

lube between the nut and the face. I know my lubes

Creomod

AeroCoupe

lube between the nut and the face. I know my lubes

AeroCoupe

lube between the nut and the face. I know my lubes

Creomod

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

AeroCoupe

lube between the nut and the face. I know my lubes

Creomod

Creomod

Creomod

2000xp8

AeroCoupe

lube between the nut and the face. I know my lubes

Creomod

Creomod

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Coolant mixed oil

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I have been doing it wrong this whole time

lube between the nut and the face. I know my lubes

lube between the nut and the face. I know my lubes

lube between the nut and the face. I know my lubes

lube between the nut and the face. I know my lubes

Stangnet Facilities Maint Tech... Er... Janitor

lube between the nut and the face. I know my lubes

lube between the nut and the face. I know my lubes

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