Thread: D2 v8 woes

Hi all my name is geoff i have disco2 4.0 v8 it seems to have a non rev related knock

If you mean that the knock occurs all the time related to engine revs and is worse when warm , then the most likely culprit is a loose sleeve moving up and down against the head.
In most cases the engine will mysteriously lose water with no obvious leaks.
This is very common on 4L V8 , and requires a full engine rebuild using flanged sleeves .
Regards Philip A

I just had another thought, that it is pretty common for the exhaust manifold bolts to loosen causing leaks that sound like a knock. Get a socket and tighten all the bolts before doing anything else and see if the noise changes.
Regards Philip A

mate get it listened to by someone who knows these engines,someone on here will tell you the closest if you put the town were you live on here

sorry about that i live in taree.

I definately recommend you take it to someone familiar with these engines. Have you dropped the oil to see if there are chunks/big flakes of metal in it? Have you checked oil pressure?

Check Ebay for an engine as recenly there have been some good low kay motors for around 3000. I know this isn`t cheap but it is cheaper than a rebuild. It is a gamble putting in a second hand replacement though.

I was quoted 9000 drive in drive out with a 4.6ltr from a mob in Perth.

Hope you sort it out easily (and cheaply) but it doesn`t sound good

yeah did the oil pressure check, even had sump off removed pick up tube and cleaned screen, no foreign particulates in oil what so ever although engine very tarnished from deposits, high k's i suppose [263,ooo] i was trying to find out detailed info on engine replacements such as if i found a low comp engine whats needed to use it where a high comp motor is, such as mine , like different ecu? Exhaust gaskets have been done and rechecked, no vacuum leaks and even did power test as in work shop manual,good results, no loss of oil or water either. I think i will be selling vehicle.

with that amount of km's and if tarnished means lack of oil changes think about camshaft\lifters.but the amount of work involved in doing all that +the high milage will have to be considered,

yeah thanks for all the input but everyones missing the point i want to know about engine swaps/choices i'll pull the original engine and disassemble later and find out what happened to it then, for now i was hoping to keep mobile with a swap.