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Uuuggg!!! Just when I think I get things sorted out and going, then more problems. Important to maybe understand the history here. I parked the car 10 years ago because I found oil inside in front of the turbo compressor side. I thought (probably stupidly) that it was a bad turbo seal. So I purchased a somewhat used turbo, gutted lower and upper intake, PIMP, and all sorts of other performance goodies. After 10 years of sitting and me being really lazy I finally got the car running. I ran the car around the block a few times. Just putting around it seems totally fine. But under boost I get oil out the tailpipe (lots) and smoke under the hood around the turbo. Since the turbo was lightly used I decided to replace it with a new Garrett unit. Guess what. Same thing. No boost, no smoke, but get into it even a little bit and I look like a crop duster. So I replaced the PCV valve with one from the auto parts store. Seems a bit better, but not much. Note that it was not the motorcraft PCV. I have one of those on order and should be here soon. I also have the oil accumulator line running basically to the stock location in front of the turbo. No water in the oil or oil in the water that I can tell. I have not done a compression or leak down test. I do know the valve seals are bad. It lets out a short puff of blueish white smoke when I start it. Pretty sure that's valve seals. So the question : Other than PCV any ideas before I start looking at head gaskets and valve seals while i'm in there?
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Well, you certainly have a project on your hands and hopefully nothing too serious. The puff of oil at startup is most likely valve stem seals, not uncommon at all with enough age on the engine and the fact it sat for 10 years, they are likely a bit hard and letting oil weep by.
The oil in your compressor housing was most likely from the PCV system, where it pumped it into the turbo inlet from the valve cover. Depending on how much got in there, you may have an oil soaked intercooler core. I would suggest giving it a good flush/cleaning, as you would be amazed at how much oil our core can hold/hang onto...ask me how I know. From there, I would remove all connections from the PCV to your intake system to let it vent to atmosphere, then cap off the intake and turbo points. See if the mosquito fogging subsides, to confirm if the PCV valve is the culprit. Let us know what you come up with.Ted
86 SVO Mustang
17 Cooper S Clubman ALL4 -
Couple things i discovered. 1. Part of my problem was the pcv system. 2. The bigger part was several leaks especially under pressure. One was the oil cap, 2nd was the drain line off the turbo on both ends. Once i got all those fixed the huge plume of smoke, the oil under the hood etc all stopped. Unfortunately not the end of my issues and maybe not the last thing leading me down the road to a head gasket. Now i have water on the ground but only after running. The car doesn't immediately spew it. Takes about 5 minutes after sitting. I did find 2 places in the head that i thought stopped it. Both had been previously plugged with mounting brackets. They had visible moisture inside them. But still hasn't resolved the issue entirely. Now it's coming from the back side of the engine somewhere. It could be a cooling line, but concerned it could also still be the head gasket. No water in oil. No visible oil in water. Not low on either one actually. Radiator is still full. Oil looks great. But it may just be seeping out the back of the head and not between oil passages cylinders etc. Going to see if i can track down the exact place today. Car is on jack stands again.Comment
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Glad to hear your oil situation seems to be resolved, those are all places for oil to get out. Pressurizing your crankcase via the PCV system can make a real mess for sure.
Good luck on your search for the mystery coolant leak, that can be a tough one to track down. Our engines aren't known to leak coolant outside the engine, typically it goes into the cylinders or crankcase, but you never know. Hopefully you can track it down sooner than later!Ted
86 SVO Mustang
17 Cooper S Clubman ALL4Comment
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Are you still running Air conditioning? The AC has a seep hole in the firewall that puts water on the ground. Coolant also if the heater core is leaking. Drove me nuts I would back out of the garage and there was coolant on the floor. Put it up on ramps and look for leaks and there were none till I came down off the ramps again. The heater core leaked but up on the ramps it was back away from the seep hole in the heater box!BruceComment
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Water water, or "coolant" water? plain water would be towards what Bruce said. When only after shut down, if coolant check the weep hole on water pump. Also on the bolts you found that went to the water jackets, did you use some pipe sealant on them?Last edited by Erics SVO; 07-05-2023, 10:35 AM.-Eric
85 1C, 85.5 1B
10 GT Premium
01 Jeep WranglerComment
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^^This! That's how I discovered our heater core was broken. If you're NOT using the A/C, and the condensate tube is damp/wet, your heater core needs replacing. If you're still using the A/C, stick your finger in the condensate line and taste it. If it's sweet, your heater core needs replacing.Originally posted by Bruce View PostGene Beaird,
86 2R SVO, G Stock,
Pearland, TexasComment
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You are aware anti freeze is poisonous right?BruceComment
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Well don't DRINK it! Just taste. Spit it out, if you feel inclined.Originally posted by Bruce View PostGene Beaird,
86 2R SVO, G Stock,
Pearland, TexasComment
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Thanks guys. Plugging the holes in the heads seems to have fixed it. There was (coolant) dropping on the ground after several trips around the block, but it did eventually work its way out of every place it had dripped to and finally on to the ground. And of course I verified there is coolant still in the radiator before anyone asks.
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Glad to hear that your issue should now be resolved, thanx for the update!Ted
86 SVO Mustang
17 Cooper S Clubman ALL4Comment
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