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Old 08-09-2009, 04:18 PM   #1 (permalink)
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Default Oil leak

I have a 03 discovery with a oil leak. I know I need to clean off the old oil to find the leak, but my question is how do you get the bottom splash guard off? I took the screws out and I tried to move it all around. Is there something I'm missing? I looked in the rave cd and didn't see anything. I could be looking on the wrong stop.
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Old 08-09-2009, 04:31 PM   #2 (permalink)
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You will also need to remove the steering stabilizer. Do yourself a favor and throw the shield away, most of us have years ago, they are too hard to work around and restrict a lot of air flow causing the engine to run hotter.
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Old 08-10-2009, 06:17 PM   #3 (permalink)
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Have you ever heard of anyone busting off their oil filter with the shroud removed?
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Old 08-10-2009, 06:24 PM   #4 (permalink)
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Have you ever heard of anyone busting off their oil filter with the shroud removed?
no
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Old 08-10-2009, 06:27 PM   #5 (permalink)
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Have you ever heard of anyone busting off their oil filter with the shroud removed?
Do you feel how flimsy that shroud is? Doubt it offers any real protection. Mine annoyed me and it got torn out.
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Old 08-10-2009, 06:30 PM   #6 (permalink)
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Have you ever heard of anyone busting off their oil filter with the shroud removed?
The bottom of the filter is still above the frame rails.
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Old 08-10-2009, 07:06 PM   #7 (permalink)
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I was thinking about more road debris like tire reads bouncing up and tearing it off. Most other vehicles have them a little harder to access. I have the 4.6 I'm not sue if the 4.0 is any different.
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Old 08-10-2009, 07:17 PM   #8 (permalink)
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You can take the shroud off. The oil filter is fine.
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Old 08-10-2009, 07:48 PM   #9 (permalink)
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Quote:
Originally Posted by Pipedream View Post
I was thinking about more road debris like tire reads bouncing up and tearing it off. Most other vehicles have them a little harder to access. I have the 4.6 I'm not sue if the 4.0 is any different.
4.0 and 4.6 are pretty much the same. I wouldn't worry about road debris.
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Old 08-15-2009, 08:15 AM   #10 (permalink)
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I too have an elusive oil leak in a 2003 Disco. This morning after cleaning and running the engine up, I found the leak is coming from one of the blanking plugs for what would have been an oil cooler line connection. As soon as I let the engine cool enough I will remove the plug and put new sealant on an install.

My question is -- I had heard about front cover cracks on 4.2 at the cooler line interfaces, any history of 4.6 covers cracking at those interfaces with just blanking plugs?

Thanks in advance of the help.
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Old 08-15-2009, 10:15 AM   #11 (permalink)
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My oil is resolved---I think. After allowing the engine to cool, I proceeded to remove the blanking plug. To my amazement, it was barely finger tight!!!!!

I suggest to all that you verify the tightness of this plug every time you change your oil. 10 days ago I completed a drive from MA to AZ in this truck, would hate to think what would have happened if the plug came out in the middle of Kansas!
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Old 08-17-2009, 09:08 AM   #12 (permalink)
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My oil is resolved---I think. After allowing the engine to cool, I proceeded to remove the blanking plug. To my amazement, it was barely finger tight!!!!!

I suggest to all that you verify the tightness of this plug every time you change your oil. 10 days ago I completed a drive from MA to AZ in this truck, would hate to think what would have happened if the plug came out in the middle of Kansas!

Where is the blanking plug? I have a leak somewhere that it appears to be coming from the rear right side of the engine, we thought it was the right valve cover gasket, so he replaced both of the valve cover gaskets and its still coming out somewhere. This all started after my last oil change.
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Old 08-20-2009, 05:20 AM   #13 (permalink)
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It looks like a bolt with a 22mm hex head right above the oil filter. The oil filter screws into an adapter that looks like a very short 45 degree pipe. About 1.5 inches above the flange where adapter interfaces to the front cover facing the right side of the vehicle you should see the "bolt-looking" plug. Mine was barely finger tight. When you remove the plug. there is a small o ring and a magnet in the end (presumably to pick up metal particles in the oil). I put some Locktite 510 on the oil ring (to help seal it) and Locktite thread sealer on the threads of the plug. BTW, my hex head had a torque stripe on it (presumably from the factory build) so over time, my guess is that it just vibrated loose.
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Old 08-20-2009, 06:07 AM   #14 (permalink)
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It is the one with the yellow marking. This is a top view.


and bottom view. Sorry my engine is dirty.
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Old 08-20-2009, 07:44 AM   #15 (permalink)
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Quote:
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Sorry my engine is dirty.
Funny, yeah it's filthy, you got the OCD or something?
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