Massive Oil Leak HELP!!!
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Senior User
Joined: Jul 2006
Posts: 165
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From: Prunedale CA
Massive Oil Leak HELP!!!
I am having a massive oil leak I'm talking a quart or so after idling for 5 or so minutes. The entire under body of my truck is coated with oil ( I found the leak after driving to work) The main leak point I can see is coming from the inspection plate between the engine and trans. It seems to be more on the passenger side of the engine. I am assuming it is the rear main. Any other ideas as to what it could be? Also is it possible to change the rear main in the truck?
Thanks in advance.
Thanks in advance.
Postmaster
Joined: Oct 2004
Posts: 3,767
Likes: 1
1st, it is more than likely not your rear main.....
Open the hood, grab a bright arz flashlight and climb up over your engine. Shine that light-stick (sorry USMC verbage) and point it down in the valley. Is the oil pooled up in the back half only or from the front half all the way back? High-pressure oil lines to the HPOP are in the front. O-rings on the turbo pedestal are at the rear.
Open the hood, grab a bright arz flashlight and climb up over your engine. Shine that light-stick (sorry USMC verbage) and point it down in the valley. Is the oil pooled up in the back half only or from the front half all the way back? High-pressure oil lines to the HPOP are in the front. O-rings on the turbo pedestal are at the rear.
Because racetruck
Joined: Apr 2007
Posts: 2,786
Likes: 104
From: Monterey Bay, CA
X2. Sounds like a leak up in the valley. Oil pools up there and there is a small drain hole on the passenger side. Oil gets high enough to run out the hole and down the inspection plate. Either that or you parked on an incline and it drained out.
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Senior User
Joined: Jul 2006
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From: Prunedale CA
Okay. I just ran out and checked and I can see a puddle under the fuel filter. All of the connectors and harnesses have oil on them. Whats the best way to begin troubleshooting? Start from the front and work my way back? Is there a place I can order a set of o rings?
Thanks for your help
Thanks for your help
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Sounds like you've blown an o-ring. You'll be out at least a couple of dollars to get this fixed. First, here's a link where you can buy the proper type o-rings Replacement O-rings for Diesel Engines
Next, with a leak that big, and judging by the location, it sounds like an HPOP line, end plug, or possibly the so called non-serviceable plug. Step one will be to clean things up so you can determine where exactly the leak is coming from. Some simple green and water from the garden hose will go a long way here.
A leak under the fuel filter sounds like it's HPOP related. That's the High Pressure Oil Pump that basically sits just below and forward of the fuel filter. The most common leaks there are from the high pressure lines (one goes to each head labeled outlet fittings) or the end plug. After you clean things up, an inspection mirror will help some, and maybe sticking a white rag under there to help pinpoint the source of the leak. Once you know which spot is leaking, we can walk you through the repair procedure.
Next, with a leak that big, and judging by the location, it sounds like an HPOP line, end plug, or possibly the so called non-serviceable plug. Step one will be to clean things up so you can determine where exactly the leak is coming from. Some simple green and water from the garden hose will go a long way here.
A leak under the fuel filter sounds like it's HPOP related. That's the High Pressure Oil Pump that basically sits just below and forward of the fuel filter. The most common leaks there are from the high pressure lines (one goes to each head labeled outlet fittings) or the end plug. After you clean things up, an inspection mirror will help some, and maybe sticking a white rag under there to help pinpoint the source of the leak. Once you know which spot is leaking, we can walk you through the repair procedure.
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Posting Guru
Joined: May 2007
Posts: 1,967
Likes: 0
From: Bowling Green, Kentucky
Give Clay a call he will fix you up. Or your Ford stealership will have them.
I would find out which ones I need first. Have you narrowed it down to where the leak is.
Riffraff Diesel Performance, Inc.
PO Box 416
Eagle Point, OR 97524
Phone: 541-879-1052
Toll Free: 866-446-3360
Fax: 541-210-8783
sales@riffraffdiesel.com?subject=Web Contact Inquiry
I would find out which ones I need first. Have you narrowed it down to where the leak is.
Riffraff Diesel Performance, Inc.
PO Box 416
Eagle Point, OR 97524
Phone: 541-879-1052
Toll Free: 866-446-3360
Fax: 541-210-8783
sales@riffraffdiesel.com?subject=Web Contact Inquiry
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Senior User
Joined: Jul 2006
Posts: 165
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From: Prunedale CA
Are the outlet fittings visible from the top of the engine? If the fittings I was looking at are the outlets the leak must be the plug because I figure I could see a steady leak that is leaking this much. I won't be able to dive into it heavily until the weekend but I definitely appreciate the help thus far. I'll follow up when I get it taken apart.
Thanks again.
Thanks again.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
High Pressure Oil flow diagram.
See this LINK for some HPOP info.
The "do not remove - NON-serviceable plug" can be removed and replaced with a new plug and o-ring. Available from International as a repair kit for a DT466 HPOP. See this LINK.
Edit: Here are instructions for removing and installing HPOP. This is from Dieselsite and are for the Andrenaline HPOP install. Just ignore the part about the check valves when re-installing stock HPO. LINK
See this LINK for some HPOP info.
The "do not remove - NON-serviceable plug" can be removed and replaced with a new plug and o-ring. Available from International as a repair kit for a DT466 HPOP. See this LINK.
Edit: Here are instructions for removing and installing HPOP. This is from Dieselsite and are for the Andrenaline HPOP install. Just ignore the part about the check valves when re-installing stock HPO. LINK
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
I just had to fix a leak at the "non-serviceable" plug. Here is my Webshots album showing the fix:
HPOP pictures from trucks photos on webshots
You can really only see that plug with a flashlight and an inspection mirror. Here is what it looked like after I had the HPOP out:
HPOP pictures from trucks photos on webshots
You can really only see that plug with a flashlight and an inspection mirror. Here is what it looked like after I had the HPOP out:
Thread Starter
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Senior User
Joined: Jul 2006
Posts: 165
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From: Prunedale CA
Alright, I was able to find the leak. If you are looking from the passenger side, it is the right (rear most) outlet fitting. I bought the "mechanics parts cabinet" kit from Riff Raff. It is leaking from the fitting to the pump. Whats the best way to get in and replace the o ring? Should I replace any others while I'm in there?
Thanks,
Thanks,