Oil in the Water
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Oil in the Water
I have very dirty water like oily, I flushed the radiator several times and it gets dirty again, from what I read in some other threads is very difficult that is engine oil, sounds more like transmission oil since both share the same radiator.
To start I will disconnect the hoses from the transmission lines that plug into the radiator and will set up an external cooler with a filter.
After that will plug the old lines in the radiator and flush it a couple of times again and see what happen from there.
To start I will disconnect the hoses from the transmission lines that plug into the radiator and will set up an external cooler with a filter.
After that will plug the old lines in the radiator and flush it a couple of times again and see what happen from there.
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Re: Oil in the Water
Im tapping the old hydraulic line and putting a fitting for a 1/2 hose, and then to the filter, to the cooler and back to the tranny.
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Re: Oil in the Water
I haven't let it separate...
Auto transmission, yes.
Last edited by cheves; 03-23-2017 at 01:48 PM.
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Re: Oil in the Water
Check above the oil filter. If there is a odine oil watercheat exchanger there it may be the culprit. I would drain both engine oil and tranny oil to inspect for coolant. Tranny clutched use water based glues and even ta bit of water in the oil will screw up your trans.
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Re: Oil in the Water
Check above the oil filter. If there is a odine oil watercheat exchanger there it may be the culprit. I would drain both engine oil and tranny oil to inspect for coolant. Tranny clutched use water based glues and even ta bit of water in the oil will screw up your trans.
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Re: Oil in the Water
Probably an internal leak in the radiator. The trans cooler runs through the radiator. I saw it quite a few times when I worked at Chevy on Blazers. You could pressurize the trans cooler with an air nozzle on one fitting and block off the other. If you hear air coming out you have found your leak. Good luck!
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Re: Oil in the Water
Probably an internal leak in the radiator. The trans cooler runs through the radiator. I saw it quite a few times when I worked at Chevy on Blazers. You could pressurize the trans cooler with an air nozzle on one fitting and block off the other. If you hear air coming out you have found your leak. Good luck!
If that doesn't fix it?
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Re: Oil in the Water
The transmission now goes to a separate cooler.
Also drained the system, replaced the radiator, used new water and after a 3 miles drive the water is still coming dirty like rusty.
FML!
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Re: Oil in the Water
Add 1 cup of Lestoil (buy it at Lowes) to the radiator. It will break down the oil so that it will mix with the water. Drain, flush, refill with water, try it again. If you still get oil, then it was not coming from the transmission.
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Re: Oil in the Water
How does oil get into the cooling system?
When oil is found in engine coolant, it resembles the consistency of a milkshake. These two fluids mixing is very bad, because it means that a major engine gasket has failed, creating an internal leak which can quickly destroy your engine. The most common way oil and coolant mix is when a head gasket blows.
What would cause oil to be in the radiator?
According to Eric the Car Guy, a blown head gasket denotes that the combustion system is leaking oil into the cooling chamber of the car. Head gasket failure is often the most frequent reason for such a leak. Another possibility is that a leaking intake gasket is causing an oil problem.
When oil is found in engine coolant, it resembles the consistency of a milkshake. These two fluids mixing is very bad, because it means that a major engine gasket has failed, creating an internal leak which can quickly destroy your engine. The most common way oil and coolant mix is when a head gasket blows.
What would cause oil to be in the radiator?
According to Eric the Car Guy, a blown head gasket denotes that the combustion system is leaking oil into the cooling chamber of the car. Head gasket failure is often the most frequent reason for such a leak. Another possibility is that a leaking intake gasket is causing an oil problem.
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Re: Oil in the Water
How does oil get into the cooling system?
When oil is found in engine coolant, it resembles the consistency of a milkshake. These two fluids mixing is very bad, because it means that a major engine gasket has failed, creating an internal leak which can quickly destroy your engine. The most common way oil and coolant mix is when a head gasket blows.
What would cause oil to be in the radiator?
According to Eric the Car Guy, a blown head gasket denotes that the combustion system is leaking oil into the cooling chamber of the car. Head gasket failure is often the most frequent reason for such a leak. Another possibility is that a leaking intake gasket is causing an oil problem.
When oil is found in engine coolant, it resembles the consistency of a milkshake. These two fluids mixing is very bad, because it means that a major engine gasket has failed, creating an internal leak which can quickly destroy your engine. The most common way oil and coolant mix is when a head gasket blows.
What would cause oil to be in the radiator?
According to Eric the Car Guy, a blown head gasket denotes that the combustion system is leaking oil into the cooling chamber of the car. Head gasket failure is often the most frequent reason for such a leak. Another possibility is that a leaking intake gasket is causing an oil problem.
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Re: Oil in the Water
How does oil get into the cooling system?
When oil is found in engine coolant, it resembles the consistency of a milkshake. These two fluids mixing is very bad, because it means that a major engine gasket has failed, creating an internal leak which can quickly destroy your engine. The most common way oil and coolant mix is when a head gasket blows.
What would cause oil to be in the radiator?
According to Eric the Car Guy, a blown head gasket denotes that the combustion system is leaking oil into the cooling chamber of the car. Head gasket failure is often the most frequent reason for such a leak. Another possibility is that a leaking intake gasket is causing an oil problem.
When oil is found in engine coolant, it resembles the consistency of a milkshake. These two fluids mixing is very bad, because it means that a major engine gasket has failed, creating an internal leak which can quickly destroy your engine. The most common way oil and coolant mix is when a head gasket blows.
What would cause oil to be in the radiator?
According to Eric the Car Guy, a blown head gasket denotes that the combustion system is leaking oil into the cooling chamber of the car. Head gasket failure is often the most frequent reason for such a leak. Another possibility is that a leaking intake gasket is causing an oil problem.
Ok, I used some radiator cleaning solutions and drained the system a couple of times, on the third one I ran a de-ionized water hose from one end of the radiator until it came out on the other end draining the whole system even the heater core, after that the water came out crystal clear...
..for like 70 miles, yesterday I had my car lifted from the top to replace the suspension and I noticed that the brown water came back.
Back to square 1.
#18
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Re: Oil in the Water
First, to clear up one bit of confusion, when Eric the Car Guy talks about oil entering the cooling system at the head gaskets, he is not talking about cam in block engines, like all of the chevy V8s. There is no pressurized oil passing through the head gaskets in these motors because there is no pressurized oil in the cyl head. Engine oil in the coolant could only come from a cracked block.
If in fact it is rust rather than oil that is contaminating the coolant, you need to follow GD's recommendation and flush the block a few times. It is hard to remove all of the rust from a cooling system that hasn't been maintained as the rust tends to settle in the bottom recesses of the block.
The coolant has anti corrosion additive in it. That's why a 50/50 mix is essential and as much as a 70/30 mix can be used. The more water in the mix, up to 50%, the better heat exchange. The old green coolant, which should never be used in anything, had silica sand(ethylene glycol silicate) emulsified in the ethylene glycol coolant. Trouble is, the sand would fall out of suspension over time, especially in engines that weren't run for periods of time, leaving no protection. Nothing preventing the iron from rusting and the aluminum from corroding and metals from mixing in the fluid and eating at each other. Organic acid coolants, which is everything but the old green stuff, contains organic acids that prevent the metals from corroding. Unlike the silica sand, the acids don't fall out of the mix, so the corrosion protection lasts for years, even when a car sits over time.
The coolant to use in these early engines is Zerex G-05. It is an OAT(organic acid technology) coolant that also contains silica sand. The silica sand, aside from being the old tech choice for anti corrosion, is also a sealant to cover very small leaks and porosity. G-05 gives us the best of both the old and the new technology and it will protect your cooling system and engine for 5 years, even if you garage your car over winter like I do. Speaking of which, I'm due to replace my G-05 coolant this summer.
BTW, all of this information comes from the Prestone company.
If in fact it is rust rather than oil that is contaminating the coolant, you need to follow GD's recommendation and flush the block a few times. It is hard to remove all of the rust from a cooling system that hasn't been maintained as the rust tends to settle in the bottom recesses of the block.
The coolant has anti corrosion additive in it. That's why a 50/50 mix is essential and as much as a 70/30 mix can be used. The more water in the mix, up to 50%, the better heat exchange. The old green coolant, which should never be used in anything, had silica sand(ethylene glycol silicate) emulsified in the ethylene glycol coolant. Trouble is, the sand would fall out of suspension over time, especially in engines that weren't run for periods of time, leaving no protection. Nothing preventing the iron from rusting and the aluminum from corroding and metals from mixing in the fluid and eating at each other. Organic acid coolants, which is everything but the old green stuff, contains organic acids that prevent the metals from corroding. Unlike the silica sand, the acids don't fall out of the mix, so the corrosion protection lasts for years, even when a car sits over time.
The coolant to use in these early engines is Zerex G-05. It is an OAT(organic acid technology) coolant that also contains silica sand. The silica sand, aside from being the old tech choice for anti corrosion, is also a sealant to cover very small leaks and porosity. G-05 gives us the best of both the old and the new technology and it will protect your cooling system and engine for 5 years, even if you garage your car over winter like I do. Speaking of which, I'm due to replace my G-05 coolant this summer.
BTW, all of this information comes from the Prestone company.
Last edited by ASE doc; 06-15-2017 at 01:46 PM.
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Re: Oil in the Water
The coolant to use in these early engines is Zerex G-05. It is an OAT(organic acid technology) coolant that also contains silica sand. The silica sand, aside from being the old tech choice for anti corrosion, is also a sealant to cover very small leaks and porosity. G-05 gives us the best of both the old and the new technology and it will protect your cooling system and engine for 5 years, even if you garage your car over winter like I do. Speaking of which, I'm due to replace my G-05 coolant this summer.
BTW, all of this information comes from the Prestone company.
BTW, all of this information comes from the Prestone company.
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Re: Oil in the Water
First, to clear up one bit of confusion, when Eric the Car Guy talks about oil entering the cooling system at the head gaskets, he is not talking about cam in block engines, like all of the chevy V8s. There is no pressurized oil passing through the head gaskets in these motors because there is no pressurized oil in the cyl head. Engine oil in the coolant could only come from a cracked block.
If in fact it is rust rather than oil that is contaminating the coolant, you need to follow GD's recommendation and flush the block a few times. It is hard to remove all of the rust from a cooling system that hasn't been maintained as the rust tends to settle in the bottom recesses of the block.
The coolant has anti corrosion additive in it. That's why a 50/50 mix is essential and as much as a 70/30 mix can be used. The more water in the mix, up to 50%, the better heat exchange. The old green coolant, which should never be used in anything, had silica sand(ethylene glycol silicate) emulsified in the ethylene glycol coolant. Trouble is, the sand would fall out of suspension over time, especially in engines that weren't run for periods of time, leaving no protection. Nothing preventing the iron from rusting and the aluminum from corroding and metals from mixing in the fluid and eating at each other. Organic acid coolants, which is everything but the old green stuff, contains organic acids that prevent the metals from corroding. Unlike the silica sand, the acids don't fall out of the mix, so the corrosion protection lasts for years, even when a car sits over time.
Last edited by cheves; 06-22-2017 at 12:52 PM.
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Re: Oil in the Water
The coolant to use in these early engines is Zerex G-05. It is an OAT(organic acid technology) coolant that also contains silica sand. The silica sand, aside from being the old tech choice for anti corrosion, is also a sealant to cover very small leaks and porosity. G-05 gives us the best of both the old and the new technology and it will protect your cooling system and engine for 5 years, even if you garage your car over winter like I do. Speaking of which, I'm due to replace my G-05 coolant this summer.
BTW, all of this information comes from the Prestone company.
BTW, all of this information comes from the Prestone company.
I will try to flush and use G-05 coolant.
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Re: Oil in the Water
Cast iron + water = RUST.
#23
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Re: Oil in the Water
There is not much worse you can do than run straight water in a mixed metal system. In the cooling system on a thrird gen you have cast iron block, aluminum radiator, brass or aluminum heater core, aluminum intake manifold and throttle body. Depending on the engine you may also have aluminum heads. The unprotected metals mix in the water and react badly with each other. You will have leaks internal and external before you know it. When you tear down to fix the leaks you'll find erosion on the aluminum surfaces. It can make re-sealing the engine nearly impossible. BTW, use distilled water with your coolant rather than tap water. Tap water has minerals that your engine doesn't need.
Last edited by ASE doc; 06-22-2017 at 06:59 PM.
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Re: Oil in the Water
WalMart has distilled water in the grocery aisles. < $1.00/gal
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Re: Oil in the Water
Flush the system with distilled water 5 times and on the last one fill it up with 60% Zerex G5 and 40% distilled water.
Will drive it tomorrow to see results.
Will drive it tomorrow to see results.
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Re: Oil in the Water
So what happened?
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Re: Oil in the Water
it might be late now but did you drain the block? there are pipe plugs on either side of the block that are for draining the block (mine have them....but its an aftermarket block..can someone confirm that stock blocks have them) I think its 1/4 or 3/8 pipe thread with a Allen head on them....mine were tight as hell but I got a ton of crap out of them block by cracking them open, so much that I had to use a coat hanger to break it up on one side BC it initially came out as a drizzle.
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Re: Oil in the Water
there are pipe plugs on either side of the block that are for draining the block (mine have them....but its an aftermarket block..can someone confirm that stock blocks have them)
Yes, they are there in stock blocks. Typically one is used by the knock sensor. 1/4" pipe thread.
Yes, they are there in stock blocks. Typically one is used by the knock sensor. 1/4" pipe thread.