QuestionHi - Just found your blog and answers after many years of Land Rover ownership. (I'm an American who moved to the UK).
My 200 Discovery 2 with 130,000 miles has the TD5 diesel engine (not sold in the US) but my first question relates to a "droning" noise at speeds between 50 and 60 mph. Above 60 mph, wind noise takes over rather than the drone going away, I think.
I've checked the tires (all in good condition), u-joints (no play) and hub/bearing assemblies (no play). The noise is road speed-related, not engine speed. It occurs at the same road speed in 4th gear or 5th and continues if I put the clutch in (until I coast to below 50 mph). It is not load-sensitive, occurring whether accelerating or decelerating. It is slightly changed when cornering, but equally going left or right.
The noise seems to be coming from the right front, but it's not easy to tell. (It's right-hand drive, so it may just be I'm closest to that area).
Any idea what else to look for? I suspect a bearing but these hub units are a bit pricey to change on a "let's see" basis.
My second question is more specific to the TD5 engine, but I'm sure you can help. At hot idle - say just having pulled off the highway after an hour or two, I have about ten pounds of oil pressure (at 2500 rpm, I have about 30 psi). That's probably not too bad for a 130,000 mile engine, but as you know, with care, they can go 200,000 and more.
Is there any point in renewing the oil pump proactively now? Some of these engines were built with Loctite omitted from the oil pump retainer, and while this one would have died long ago if it was one of them, it certainly wouldn't hurt, would it?
Thanks
Steve
AnswerOn the first issue . . . do you have a roof rack or anything else out there in the wind? Roof racks are notorious for noises.
On the second . . . I think ten PSI sounds fine for hot idle oil pressure. Why did you think that was a problem? Oil pressure shoots right up when speed increases, right?
