Crazy Oil Leak
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From: Indianapolis
Crazy Oil Leak
Alright, I know I should probably use the search function but this is my first post. Basically, got a '92 F350 with a 7.3l with ATS 088 turbo. Picked the truck up with a terrible ether addiction. This is my first diesel but I'm proud to say I did injectors, return lines, glow plugs, diy wiring harness, and got the thing to start by just sneezing at my keys.
So, now I've got to the real issue. This thing is losing a pretty crazy amount of oil on the rear passenger side of the block. The 088 makes it hard to see anything behind the engine. I'm getting about two drips a second landing near the starter and exhaust lines causing some good smoke. Where should I start looking? This leak only occurs when running. I cleaned the whole engine bay to make the job easier, but by the time I've turned the truck on and gotten back around the whole rear end of this thing is glistening.
Thanks guys, sorry for the long post.
-Mikael
Cheers
So, now I've got to the real issue. This thing is losing a pretty crazy amount of oil on the rear passenger side of the block. The 088 makes it hard to see anything behind the engine. I'm getting about two drips a second landing near the starter and exhaust lines causing some good smoke. Where should I start looking? This leak only occurs when running. I cleaned the whole engine bay to make the job easier, but by the time I've turned the truck on and gotten back around the whole rear end of this thing is glistening.
Thanks guys, sorry for the long post.
-Mikael
Cheers
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From: Indianapolis
Alright, so got an update. Valve cover gaskets are in good shape and tight as a whistle. The oil feed to the turbo is also in fantastic (dry) order. Because of the location of the turbo I can't really see behind it, so I'm currently assuming that it's the return that's leaking, probably the grommet. I've never removed a turbo to get the "return cast", any tips or tricks before I start tearing it down?
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From: Indianapolis
It's oil for sure. The fuel return lines are new, tight, and leak checked. I checked the valve covers with a good ol' fashioned finger test and mirror test. The amount of oil pouring out of this thing is obviously not coming from anything visible or "feelable?". Since it's on the back end of the engine I have to assume it's turbo based and not the feed line. When I changed the glow plugs and injectors I took the airbox off, but again, I have no experience with removing turbos.
i ain't rite
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ok. not sure where ATS draws turbo oil from, but on the banks it draws from the oil pressure sender port in the middle of the block top rear. if that fitting is loose it will pour down the back of the engine.
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Cross-Country
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The 088 draws oil from the same place. At least mine does anyhow. If you take the air box off, you can see where the feed line screws in to the fitting. If it's the grommet, you should see a build up of oil in the valley pan unless the plug in the rear of the pan is removed. As far as the grommet goes, if you have to replace it try to pm type4. He may have them. If not, the only other option I'm aware of is to buy a new felpro intake manifold gasket. It comes with a grommet. I got mine off eBay for 45 bucks.
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Sorry, guess the post before my previous post didn't show up correctly. Anyway, I found that all the lines running to and from the turbo are great. I'm terrified of taking the turbo off because I'm afraid of ruining these oldschool o-rings. Finally, I obviously don't have much room to see behind the turbo or even near the grommet because of the copious amount of stuff in the way. But yeah, valley pan is clean, oil leak is steady and severe but only when running. Could it possibly be the valley pan itself?
Cross-Country
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The fitting on the block where the oil feed connects is actually an extension. It's where the sending unit used to be. It's possible that it could be leaking where it screws into the block. I'm pretty sure you have to remove the turbo to access that.........or yank the engine.
If you can pull the downpipe, you may be able to get to it from underneath but I'm not sure.
If you can pull the downpipe, you may be able to get to it from underneath but I'm not sure.
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The oil feed line is accessible from the top. Take the air box off and lay over the engine and you'll see it. Mine is the 94 factory turbo and ford still sells the lines with couplers and washers you need. It was only like $24. I highly recommend changing it. I took mine off when pulling the turbo to make a 3 inch exhaust outlet and down pipe. The old rubber o rings were JUNK. Fell apart into crumbs when pulled off. And it has to be tight when reinstalled. I thought mine was on good enough to seal but ended up having to really crank on it.
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