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post #1 of 31 Old 03-20-2009, 03:36 PM Thread Starter
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Oil Leak. Rear Main?

So I washed my truck yesterday and when i got home I now have a severe oil leak coming from that weird nipple thing that is where the motor and transmission connect. it only leaks when the truck is running, and it leaks very bad. I'm thinking rear main seal...any suggestions or ideas? thanks in advance.

So far I've drained my oil to a mid dipstick level and still having same issue.
UPDATEkay so I looked around and there is fresh oil in the valley...

Sold!2001 F-350Lariat Lifted 7.3L CC, 5" Straight Pipe, DIY Intake, Foil-Delete, 6 pos chip, CCV Bypass, 37" Toyo MT, Gauges, Blacked out, 07 Harley Front-End.

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STOLEN ,2001 F-350Lariat 7.3L CC, 6pos chip, 4" Banks Straight-Pipe, Banks Comp Wheel, Custom Lighting, Foil-Delete, Intake.

Last edited by Powerstroke W/smoke; 03-20-2009 at 04:29 PM.
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post #2 of 31 Old 03-20-2009, 03:47 PM
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What weird nipple?

9 times out of 10 if there is oil coming from the back of the engine it is coming from the turbo pedistal. Get an inspection mirror and take a look back there!

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2008 Ford F-450, TumbleWeed Headache Rack, B&W Gooseneck, 15% tinted windows, 120 Gal Transfer tank, Cobra 29 LX CB, 1200 watt converter, PIAA lights, Sinister goodies, S&B Intake and lots of running lights.

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Thanks. I'll give er a good wackin in the morning.
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post #3 of 31 Old 03-20-2009, 03:47 PM
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Oil Leak

Did you pressure wash the engine too?

It isn't all that common for a rear main leak on a 7.3. Have a look in the valley on top of the engine. There is a drain hole at the rear of the valley that lets any leak from the top of the engine drain down the back of the block and mimick a rear main leak.

I would bet the leak is up top somewhere, maybe a turbo pedestal o-ring or a leaking HPOP.

Let us know what you find, and we can go from there.

1999.5 F350
4" Straight Pipe / Gauges (Pyro, Boost)
Wicked Wheel / Wg delete / Boost fooler
Tymar intake / Zoodad Mod / NChornet CCV mod
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post #4 of 31 Old 03-20-2009, 04:29 PM Thread Starter
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okay so I looked around and there is fresh oil in the valley...

Sold!2001 F-350Lariat Lifted 7.3L CC, 5" Straight Pipe, DIY Intake, Foil-Delete, 6 pos chip, CCV Bypass, 37" Toyo MT, Gauges, Blacked out, 07 Harley Front-End.

SOLD!2006 F-250Amarillo 6.0L CC, 4" Straight Pipe, SCT-II

STOLEN ,2001 F-350Lariat 7.3L CC, 6pos chip, 4" Banks Straight-Pipe, Banks Comp Wheel, Custom Lighting, Foil-Delete, Intake.
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post #5 of 31 Old 03-20-2009, 04:33 PM Thread Starter
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MOD! Can a mod please change the title from what it is now to "Oil Leak From Vally" please? thanks if you can

Sold!2001 F-350Lariat Lifted 7.3L CC, 5" Straight Pipe, DIY Intake, Foil-Delete, 6 pos chip, CCV Bypass, 37" Toyo MT, Gauges, Blacked out, 07 Harley Front-End.

SOLD!2006 F-250Amarillo 6.0L CC, 4" Straight Pipe, SCT-II

STOLEN ,2001 F-350Lariat 7.3L CC, 6pos chip, 4" Banks Straight-Pipe, Banks Comp Wheel, Custom Lighting, Foil-Delete, Intake.
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post #6 of 31 Old 03-20-2009, 04:44 PM
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Have you determined if it is comming from the turbo or the HPOP?

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2008 Ford F-450, TumbleWeed Headache Rack, B&W Gooseneck, 15% tinted windows, 120 Gal Transfer tank, Cobra 29 LX CB, 1200 watt converter, PIAA lights, Sinister goodies, S&B Intake and lots of running lights.

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Thanks. I'll give er a good wackin in the morning.
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post #7 of 31 Old 03-20-2009, 04:50 PM Thread Starter
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Quote:
Originally Posted by RRonning1984 View Post
Have you determined if it is comming from the turbo or the HPOP?
negative. i'm still looking around the engine area to find the cause, but there is so many things in the way.

Sold!2001 F-350Lariat Lifted 7.3L CC, 5" Straight Pipe, DIY Intake, Foil-Delete, 6 pos chip, CCV Bypass, 37" Toyo MT, Gauges, Blacked out, 07 Harley Front-End.

SOLD!2006 F-250Amarillo 6.0L CC, 4" Straight Pipe, SCT-II

STOLEN ,2001 F-350Lariat 7.3L CC, 6pos chip, 4" Banks Straight-Pipe, Banks Comp Wheel, Custom Lighting, Foil-Delete, Intake.
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post #8 of 31 Old 03-20-2009, 04:53 PM
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My 02 had a similar problem with the previous owner and it turned out to be the High side oil line. I'm not to sure what that means but it's what the paper work says.
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post #9 of 31 Old 03-20-2009, 05:02 PM Thread Starter
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Update: so i removed the cover for the fuel filter and the thing under that looks as if to be the cause of the oil.. not 100% sure yet. I'm familiar with the 6.0 motor because of catastrophic motor failure but not so much with the 7.3, so is what i'm describing my HPOP?

Sold!2001 F-350Lariat Lifted 7.3L CC, 5" Straight Pipe, DIY Intake, Foil-Delete, 6 pos chip, CCV Bypass, 37" Toyo MT, Gauges, Blacked out, 07 Harley Front-End.

SOLD!2006 F-250Amarillo 6.0L CC, 4" Straight Pipe, SCT-II

STOLEN ,2001 F-350Lariat 7.3L CC, 6pos chip, 4" Banks Straight-Pipe, Banks Comp Wheel, Custom Lighting, Foil-Delete, Intake.
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post #10 of 31 Old 03-20-2009, 05:06 PM
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Are you talking about the big plastic cover or the actual fuel filter lid!

Babe The Blue OX



2008 Ford F-450, TumbleWeed Headache Rack, B&W Gooseneck, 15% tinted windows, 120 Gal Transfer tank, Cobra 29 LX CB, 1200 watt converter, PIAA lights, Sinister goodies, S&B Intake and lots of running lights.

Quote:
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Thanks. I'll give er a good wackin in the morning.
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