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Old 11-01-2013, 09:41 AM   #1
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Oil/Coolant Mix

Ok I am out of ideas completely and hoping someone on here may have a suggestion. Installed new engine, thermostat, water pump, etc. After driving maybe 200 miles checked oil and there is a ton of coolant. Never blew white smoke. Drained all fluids, filled coolant system with water and pressurized to 13 psi (per cap). No visible leaks at head. Where else should I look. Thanks for all the suggestions.

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Old 11-01-2013, 09:54 AM   #2
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the leak will be internal..most likely is head gasket or cracked head

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Old 11-01-2013, 10:00 AM   #3
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the leak will be internal..most likely is head gasket or cracked head
Would this happen on a new engine? Only has 200 miles on it. I checked the lead plug on the firewall side of the engine and it is still intact so it didn't get that hot.
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Old 11-01-2013, 10:22 AM   #4
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Brand new out of crate? New meaning just rebuilt? If it's new, was there a warranty? I agree that a probable cause is head gasket. Some people will torque the head bolts down once and not re torque. Once you go through the pattern, the first ones will be under torqued. (Just recently did it.) I was surprised when I went back through how much further I had to turn them to get to the specified #.
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Old 11-01-2013, 10:36 AM   #5
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Brand new out of crate? New meaning just rebuilt? If it's new, was there a warranty? I agree that a probable cause is head gasket. Some people will torque the head bolts down once and not re torque. Once you go through the pattern, the first ones will be under torqued. (Just recently did it.) I was surprised when I went back through how much further I had to turn them to get to the specified #.
Yes brand new out of crate. The cylinder head bolts were torqued to about 90 lbs from the company. Re-torqued after my issue. Would the head gasket still be ok after re-torque again.
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Old 11-01-2013, 10:37 AM   #6
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Ok I am out of ideas completely and hoping someone on here may have a suggestion. Installed new engine, thermostat, water pump, etc. After driving maybe 200 miles checked oil and there is a ton of coolant. Never blew white smoke. Drained all fluids, filled coolant system with water and pressurized to 13 psi (per cap). No visible leaks at head. Where else should I look. Thanks for all the suggestions.
Was it a complete long block, valve cover to oil pan, or a short block. I would agree with the other posters that the head gasket is the most likely suspect.
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Old 11-01-2013, 10:41 AM   #7
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Was it a complete long block, valve cover to oil pan, or a short block. I would agree with the other posters that the head gasket is the most likely suspect.
It was a long block. Installed new valve cover, oil pan, timing cover, water pump, thermostat, hoses, belts.
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Old 11-01-2013, 10:57 AM   #8
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even with new stuff there is always a possibility of a defect
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Old 11-01-2013, 11:00 AM   #9
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even with new stuff there is always a possibility of a defect
I guess I will have to break it down and replace the head gasket and try again.
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Old 11-01-2013, 11:10 AM   #10
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If it is a new engine, contact the people who you got it from and tell them to warrantee it. You don't buy a new engine, and spend time and money to put it in only to have it not working correct.

Contact them first before you take it apart.
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Old 11-01-2013, 11:29 AM   #11
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If it is a new engine, contact the people who you got it from and tell them to warrantee it. You don't buy a new engine, and spend time and money to put it in only to have it not working correct.

Contact them first before you take it apart.
I am going through the process of doing this. It came from SandJ. I hope it is somewhat easy. Ugh.
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Old 11-01-2013, 11:51 AM   #12
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If it was re torqued after the initial problem.... the head gasket at the very least might already be toast.
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Old 11-01-2013, 11:58 AM   #13
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If it was re torqued after the initial problem.... the head gasket at the very least might already be toast.
Ok so here is another question. My jeep is completely stock. I plan getting a 4" lift, re-geared and running 32 or 33's. If I have to yank this engine would you recommend getting new motor mounts. I have seen the 1" motor mount lifts. If I do install the 1' MML what else do I need to change, lift, drop to make it work?
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Old 11-01-2013, 12:40 PM   #14
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It was a long block. Installed new valve cover, oil pan, timing cover, water pump, thermostat, hoses, belts.
I'm going to say its a cracked head or at the minimum a failed head gasket. We have all had brandy new parts be bad right out of the box. If the supplier is reputable they should warranty it =No questions asked=

You could do a cylinder leak down test in conjunction with a cooling system pressure test


The good stuff starts about 10:05 into the video...
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Old 11-01-2013, 01:02 PM   #15
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I'm going to say its a cracked head or at the minimum a failed head gasket. We have all had brandy new parts be bad right out of the box. If the supplier is reputable they should warranty it =No questions asked=

You could do a cylinder leak down test in conjunction with a cooling system pressure test


The good stuff starts about 10:05 into the video...
Thanks Peety. I will test it tonight when I get off work.
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Old 11-01-2013, 01:05 PM   #16
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Yes brand new out of crate. The cylinder head bolts were torqued to about 90 lbs from the company. Re-torqued after my issue. Would the head gasket still be ok after re-torque again.
Just curious, we're they all at 90#? I kind of doubt it's a torquing or head gasket issue on a crate motor. More plausible is cracked or not entirely flat head.
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Old 11-01-2013, 01:48 PM   #17
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Just curious, we're they all at 90#? I kind of doubt it's a torquing or head gasket issue on a crate motor. More plausible is cracked or not entirely flat head.
Yes they were all within +/- 2 lbs of each other.
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Old 11-01-2013, 02:14 PM   #18
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Personally, I wouldn't even dick around with it, call S and J, tell them what happened and see what they're gonna do. Hopefuly they will also cover the shipping costs as well.
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Old 11-01-2013, 03:43 PM   #19
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Personally, I wouldn't even dick around with it, call S and J, tell them what happened and see what they're gonna do. Hopefuly they will also cover the shipping costs as well.
So just an update. I just got off the phone with the warranty department at S and J and the gentleman told me that they could have overlooked something. Said to have a mechanic look it over and replace whatever needs replacing and send them the bill and they will take care of it. Sounds like they are will to work with you. I hope this process goes smoothly.
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Old 11-01-2013, 04:01 PM   #20
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Is this a new engine or a rebuilt.??? Don't know how anyone can sell a new factory engine without the factory and if its new I sure would not settle for a mechanic checking it and making repairs.....but then what does your warranty say?
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Old 11-13-2013, 02:42 PM   #21
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So after for waiting for over a week I finally get the new gaskets shipped down. Installed and there is still coolant mixing with the oil. Called S and J and told them it is a cracked block or head and there MagnaFlux didn't work. Told them to send me a new engine and they told me that it isn't going to happen. They aren't trying to resolve the issue at all. This is by far the worst company. Jeep has been down for almost 2 1/2 months now. Does anyone know of a place to get a rebuild engine that is reputable. Thank.
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Old 11-14-2013, 11:01 AM   #22
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So after for waiting for over a week I finally get the new gaskets shipped down. Installed and there is still coolant mixing with the oil. Called S and J and told them it is a cracked block or head and there MagnaFlux didn't work. Told them to send me a new engine and they told me that it isn't going to happen. They aren't trying to resolve the issue at all. This is by far the worst company. Jeep has been down for almost 2 1/2 months now. Does anyone know of a place to get a rebuild engine that is reputable. Thank.
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Old 11-14-2013, 11:03 AM   #23
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Old 11-14-2013, 11:05 AM   #24
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Old 11-14-2013, 11:08 AM   #25
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Ok I am out of ideas completely and hoping someone on here may have a suggestion. Installed new engine, thermostat, water pump, etc. After driving maybe 200 miles checked oil and there is a ton of coolant. Never blew white smoke. Drained all fluids, filled coolant system with water and pressurized to 13 psi (per cap). No visible leaks at head. Where else should I look. Thanks for all the suggestions.
Hold on a sec, why was the engine replaced in the first place...???
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Old 11-14-2013, 11:21 AM   #26
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Hold on a sec, why was the engine replaced in the first place...???
The block got a crack in it and the compression in 2 of the cylinders was 75 and the other 2 was around 90.
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Old 11-21-2013, 01:48 PM   #27
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How are you making out with it ??
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Old 11-22-2013, 09:30 AM   #28
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How are you making out with it ??
After much debate S and J said they shipped another engine out to me yesterday and I should have it today or tomorrow. If they did I really hope this one is going to be better and what I paid for. What a headache.
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Old 11-22-2013, 09:39 AM   #29
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A friend of mine swears by the little machine shop next to Kelly's transmission in Whetstone. He has had his heads done there, with good prices and work. I think it is called Performance Machine.

I just pulled up their website. What gaskets did you have sent down? Did you have someone look at it already or did you work on it and what did you do to it. If you pulled it apart, then you probably voided the warrantee. That sucks... I'd take it up to precision (unless someone else here knows of another machine shop) and have them check the head and the block.

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Old 11-22-2013, 09:40 AM   #30
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Ok, you posted at the same time I was looking at their site. Did you have to send the other one back first?

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