Range Rover engines - 4.0 or 4.6

Hi All,

Last week my 4.0 litre RR engine completely died on me. It's an R reg and
all tied in with the engine block becoming porus (due to Landrover screwing
up the way the engine was made) as I have had loads of over heating problems
and it was drinking coolant like George Best drinks alcohol.

So I need to get a new engine for it but I can't quite decide on another 4.0
with chip or a straight 4.6. with or without chip.

I know a 4.6 will drink a bit more petrol but it will give more performance
than the 4.0.

Does anybody have any peformance figures / MGP for a chipped and unchipped
4.6 to help me make my mind up.

Thanks in advance

Roger

"Roger Hembury" <[email protected]> wrote in message
news:[email protected]...
>
> Hi All,
>
> Last week my 4.0 litre RR engine completely died on me. It's an R reg and
> all tied in with the engine block becoming porus (due to Landrover
> screwing up the way the engine was made) as I have had loads of over
> heating problems and it was drinking coolant like George Best drinks
> alcohol.
>
> So I need to get a new engine for it but I can't quite decide on another
> 4.0 with chip or a straight 4.6. with or without chip.
>
> I know a 4.6 will drink a bit more petrol but it will give more
> performance than the 4.0.
>
> Does anybody have any peformance figures / MGP for a chipped and unchipped
> 4.6 to help me make my mind up.

One thing to bear in mind is that the 4.0 engine is a smoother running
design than the 4.6, the larger engine has more noticeable vibration due to
the longer stroke. BTW, they didn't screw up the way it was made, they
screwed up the fuelling that then resulted in localised overheating beyond
the elastic modulus of the block.
Have you had the heads off and confirmed the porosity (liner creep,
actually) or is this speculation based upon reputation? I've replaced a lot
of head gaskets on the later engines, more on the larger capacity,
admittedly, but I personally have found that around 80% of all the engines
I've looked at, it's just been gasdets, no liner creep.
Badger.

"Roger Hembury" <[email protected]> wrote in message
news:[email protected]...
>
> Hi All,
>
> Last week my 4.0 litre RR engine completely died on me. It's an R reg and
> all tied in with the engine block becoming porus (due to Landrover
> screwing up the way the engine was made) as I have had loads of over
> heating problems and it was drinking coolant like George Best drinks
> alcohol.
>

I thought the 4.6's were the porous blocks, not the 4.0l?

Yeah, I thought it was the 4.6's, but I suppose the manufacturing processes
are similar...
Sorry but I think your bit about George Best was in very poor taste,
especially after recent events.
Wolverine.

On or around Sat, 8 Oct 2005 19:05:18 +0100, "Wolverine"
<[email protected]> enlightened us thusly:

>Yeah, I thought it was the 4.6's, but I suppose the manufacturing processes
>are similar...
>Sorry but I think your bit about George Best was in very poor taste,
>especially after recent events.

what recent events? The ones about him being back in hospital?

I mat well be wrong, but AIUI he had extensive and doubtless expensive
treatment to cure the effects of alcohol abuse and then carried on drinking,
possibly not so heavily.
--
Austin Shackles. www.ddol-las.net my opinions are just that
If all be true that I do think, There are five reasons we should drink;
Good wine, a friend, or being dry, Or lest we should be by and by;
Or any other reason why. - Henry Aldrich (1647 - 1710)