Disco 2 What is this part?

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ANR

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I am still trying to open up the pdf files of the Rave manual. I'm working on it. Until then, can someone please tell me what this component is (I can't find it's image in the Haynes manual):
Picture2.jpg

The view here is looking up into the engine through the twist-off cover just below the oil sump plug, looking toward the off side.
I'm trying to find the source of a minor oil leak and, though I'm not sure, it appears to emanate from this component. There is the ca. 1" diameter threaded cap and below this cap there is a grub screw (obscured by the pipe in the photo).
Thanks,
Andrew
 
Not sure what pipe is (I've Disco 1) but I had a problem opening Rave files and solved it by de-installing Adobe acrobat. I had latest free version Acrobat DC, I then install Acrobat 4 that was included with my Rave DVD and now it works fine. I let browser open later pdf files.
 
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Thanks,
It's not the pipe, its the box behind it.
On the RAVE: I don't have adobe acrobat on my computer. My pdfs open with something called 'Nuance pdf Viewer Plus. Maybe this is the reason, though the software opens all other pdfs. I'm going to spend some time this evening seeing if I can get to the bottom of it.
 
ANR said:
I am still trying to open up the pdf files of the Rave manual. I'm working on it. Until then, can someone please tell me what this component is (I can't find it's image in the Haynes manual):
View attachment 224259
The view here is looking up into the engine through the twist-off cover just below the oil sump plug, looking toward the off side.
I'm trying to find the source of a minor oil leak and, though I'm not sure, it appears to emanate from this component. There is the ca. 1" diameter threaded cap and below this cap there is a grub screw (obscured by the pipe in the photo).
Thanks,
Andrew
Click to expand...
Aircon coolant pipe? Power steering pipe? Or maybe going to an oil cooler?

It would help if you state the model and year of your vehicle, and pull back a bit on the photo. I am assuming the large oily component with the plug is a power steering box?
 
Sorry. The car is a Discovery 2, 2002, TD5.
Thank you. The part I'm referring to, and 'circled' by the box in the picture is the black box-shaped unit behind the (dryish) pipe. It has a ca. 1" circular screw that sits flush with the outer casing - shown in the top centre of the picture. Below this screw is a small grub screw (obscured by the pipe). I've uploaded a slightly lower focus image:
P1050849.JPG
 
ANR said:
Sorry. The car is a Discovery 2, 2002, TD5.
Thank you. The part I'm referring to, and 'circled' by the box in the picture is the black box-shaped unit behind the (dryish) pipe. It has a ca. 1" circular screw that sits flush with the outer casing - shown in the top centre of the picture. Below this screw is a small grub screw (obscured by the pipe). I've uploaded a slightly lower focus image:
View attachment 224260
Click to expand...
Underside of a power steering box. It look wetter than I would like to see, but can't say whether the oil is coming from the box itself, or from higher up.
 
Great. Thanks.
That makes sense. I've recently had to top up the power steering fluid, though the reservoir level had been pretty stable, on minimum, since I bought the car.
Andrew
 
ANR said:
Great. Thanks.
That makes sense. I've recently had to top up the power steering fluid, though the reservoir level had been pretty stable, on minimum, since I bought the car.
Andrew
Click to expand...
Likely that is your problem, then. If you degrease and wash off, you may be able to spot exactly where the oil is coming from.
It may be a pipe union if you are lucky, if not, it will be a seal in the box itself.
As far as I know, recon boxes for that are available.
 
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I've just had a look at the part. It's a big unit! Does that 1" screw routinely get opened and closed? My first thought is to tighten it and the grub screw. The wetness appears to come from these threaded parts. I'll have a closer look tomorrow.
Andrew
 
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ANR said:
I've just had a look at the part. It's a bit unit! Does that 1" screw routinely get opened and closed? My first thought is to tighten it and the grub screw. The wetness appears to come from these threaded parts. I'll have a closer look tomorrow.
Andrew
Click to expand...
I think that is a drain plug, although not certain.
What I do know is that the plug is the lowest part of the box, so wherever the leak is coming from, it will appear on that plug, and it's surround.
It is hard to say from pictures, but to me, the box looks too wet all over for it to be the plug.
But who knows, hot oil gets into strange places.
 
ANR said:
I've just had a look at the part. It's a bit unit! Does that 1" screw routinely get opened and closed? My first thought is to tighten it and the grub screw. The wetness appears to come from these threaded parts. I'll have a closer look tomorrow.
Andrew
Click to expand...
the large screw is the power steering box rack adjuster its locked by a small allen screw through the side,its not sometthing youd remove unless rebuilding the box
 
I've cleaned up the area today, and will see what happens. One question (as a relatively new D2 owner):
What is the easiest way to remove the main undershield? The Haynes manual says that it can be removed by detaching the front end of the prop shaft, but the obstacle appeared to be the centre of the axle. As the axle was blocking it I didn't try to detach the front of the prop shaft, so just worked around the undershield. I'm thinking about cutting the undershield in two and finding a way to re-connect it together in-situ, so that in future it is easy to remove and access the underside of the engine.
Andrew
 
ANR said:
I've cleaned up the area today, and will see what happens. One question (as a relatively new D2 owner):
What is the easiest way to remove the main undershield? The Haynes manual says that it can be removed by detaching the front end of the prop shaft, but the obstacle appeared to be the centre of the axle. As the axle was blocking it I didn't try to detach the front of the prop shaft, so just worked around the undershield. I'm thinking about cutting the undershield in two and finding a way to re-connect it together in-situ, so that in future it is easy to remove and access the underside of the engine.
Andrew
Click to expand...
I don't think my Disco ever had an undertray on it, certainly not during the time I owned it.
 
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