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Massive oil leak back of motor
#1

Hi everyone, 
Im trying to figure out where this oil is coming from, its just about a steady stream near the oil filter everything is soaked in oil so I'm having a lot of trouble finding it.

Ive already bypassed the oil cooler so thats not it.
Its not the oil pressure gauge fitting.

Is there an oil galley plug that could've fallen out?
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#2

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How does one "bypass" the oil cooler, Bob? Did you remove it? The attached hoses only have coolant in 'em. My suggestion is to clean the affected/oily area as well as possible with solvent, Brakleen, Gunk, etc. ~ then watch carefully as you crank the motor in short "bursts" with a remote starter button attached to the solenoid (make sure the ignition is "OFF").

May I ASSume that the filter is tight AND that you didn't accidentally "double-gasket" it during a recent replacement? If those assumptions are correct......I'll go out on a limb and GUESS that the filter has a crack or pinhole in its' "can". There are no "press-in" oil-gallery plugs (they're all threaded) that can fall out ~ AND......AFAIK, none of 'em are anywhere near the oil filter.  <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#3

I temporarily removed it from the block and threaded a new oil filter on in its place.

I was able to watch the stream while its running,
Its running down the rear driver side, its like its coming from the head gasket but i cant see exactly
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#4

Oil line to the turbo coming off the adapter on the head where the oil pressure sender is located or the valve cover gasket?
1987 TC, 5sp, BoPort Stage 3 Head, 2.1 Cam
1996 Impala SS
2009 G8 GXP M6
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#5

(05-08-2022, 07:15 AM)vegas_ss Wrote:  Oil line to the turbo coming off the adapter on the head where the oil pressure sender is located or the valve cover gasket?

I had a oil leak from the OEM metal oil line going to the turbo, the line had a hairline crack right where it screwed into the block adapter.
87 TC 5 speed at 205,000 miles, BoPort Stage 3 Head, 2.1 cam, 50 trim Turbo, Stinger Pimp, 3" exhaust, upper and lower ported manifolds, FMIC, 80lb injectors, 255 pump, 20 psi at 4K, 25 psi at 4.5k. Temp is 93c and IAT is 50c in West Texas Summer. Great freeway flyer on pump 93 gas.
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#6

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Altho possible, it's VERY unlikely that the h/gasket is leaking oil. As others have said, it's more than likely coming from the oil line that feeds the turbo. I would've suggested that right from the git-go ~ BUT......you said, "It's not the oil pressure gauge fitting". OTOH, it's fairly typical for that oil line to develop a hairline crack right at the "crotch" of the flare, onto which the tubing nut seats inside the oil-pressure gauge fitting. <stickpoke>

If so, you won't be able to see it w/o removing the tube from the engine ~ requiring removal from both the adapter on the driver's side, AND from the turbo. There's SUPPOSED to be a support "clip" on the passenger side that fastens to a "studded" manifold bolt. When that support clip is missing, vibration exacerbates the potential for cracking.

If you still have the OEM Ford oil tube......it's stainless steel and harder than a woodpecker's lips. Fortunately, it doesn't need to be DOUBLE flared, like a mild-steel brake line ~ but it's still hard to flare. If you don't have the proper tool to re-flare the end, after cutting off the 1/8" cracked/flared portion, I suggest taking it to someone who DOES. Another alternative is to replace the whole thing with a stainless-braid-covered hose.......available from Stinger.  <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#7

I replaced the oil line, definitely not it.
This is more than a valve cover or oil pan gasket leak. 
[Image: 6-BD38-D71-4-F6-C-494-F-A339-DFA291-FBA283.jpg]
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#8

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BUMMER! About the only things left that would leak that much oil from "that region" of the engine are the oil sending unit or the adapter fitting to which your turbo feed line is attached. <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#9

As much oil that gets thrown around inside the 2.3 valve cover a break in the VC gasket would leak like crazy. Worth a look.
88 TC: 2.9L tall deck, SVO head, boport header, sheet metal intake, BWS300SXE turbo, AWIC. C4 trans. E85
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#10

Wow that's a lot of oil.



I would clean the engine and put the truck up on jack stands then start it up and craw under with a bright flashlight.

Can you post some pic's of the engine like oil plug area, pan area, engine bell housing area { maybe rear engine seal }


87 TC 5 speed at 205,000 miles, BoPort Stage 3 Head, 2.1 cam, 50 trim Turbo, Stinger Pimp, 3" exhaust, upper and lower ported manifolds, FMIC, 80lb injectors, 255 pump, 20 psi at 4K, 25 psi at 4.5k. Temp is 93c and IAT is 50c in West Texas Summer. Great freeway flyer on pump 93 gas.
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