[x300] UK approx cost of 4.0 engine rebuild

evening, as I pulled away from rest, I noticed that The
Duchess was rocking slightly/running lumpily and very much
down on power. Thinking it was maybe just damp on the
electrics, I carried on for a brief period but then noticed
the oil light was on and THEN noticed that there was no oil
pressure.

I’m no expert but my guess is that I had a catastrophic loss
of oil and that the bottom end has gone west.

Would anyone hazard a guess as to what this is going to cost
me (obviously NOT via a Jaguar dealer!)? Would it be cheaper
to source a replacement/re-conditioned engine and have that
fitted?–
JagFab, 96MY X300 4.0 Daimler Six RHD
London, United Kingdom
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In reply to a message from JagFab sent Tue 27 Dec 2011:

Ian, that’s a bit of a b*gger if you are correct, I think
that about the best you’ll manage, based on a friends
experience with his Saab 93 and a ‘‘blown engine, used low
mileage replacement’’ it’ll be �3k to �5k, at best or worst!
Unless the car is very much cherished, I’d be looking to
replace it.

On 2nd. thoughts Pete C may just have one ‘‘surplus to
current requirements’’ lurking in his Warehouse for just such
an eventuality, please apply ‘‘off list’’ in order to avoid
breaching any rules or protocol! No affiliation annat annat
etc…–
The original message included these comments:

Would anyone hazard a guess as to what this is going to cost
me (obviously NOT via a Jaguar dealer!)? Would it be cheaper
to source a replacement/re-conditioned engine and have that
fitted?


Neil 70 '97 3.2S http://www.jag-lovers.org/v.htm?1242166704
MALDON, United Kingdom
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In reply to a message from JagFab sent Tue 27 Dec 2011:

??? you say a catastrophic loss of oil - what does this mean ???

Presumably nothing now showing on the dipstick?

Was there a pile where you normally park; 2 gallons would
make a sgnificant mess. Or did it all drop out in the short
distance you travelled - in which case there would be a very
considerable trail. So first question is - where did all
that oil go ?

Most unlikely for a Jaguar bottom-end to let go, and it
wouldn’t initially show as a loss of power or even lumpy
running. You would hear a clattering noise as the white
metal came off the shells but it would probably still run.

I agree if you blasted it down the motorway you might find
some of the ends starting to weld up but my guess would be
that someone has been messing with your car whilst parked?

The idiot oil pressure gauge runs off the same switch as the
oil pressure light so those two indications are from the
same source. Oil pressure switches can fail of course.

But I would like to hear more about where 2 gallons of oil
might have gone first.

Best wishes from Jim Butterworth
http://jimbutterworth.co.uk/

I never Fail, I just succeed in finding out what doesn’t work–
The original message included these comments:

I’m no expert but my guess is that I had a catastrophic loss
of oil and that the bottom end has gone west.


1995 3.2 Sport - www.jag-lovers.org/v.htm?id=1320795768
Somerset, United Kingdom
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In reply to a message from JagFab sent Tue 27 Dec 2011:

Ian,

I would guess that it would be cheaper to source a used engine,
rather than have a rebuild.

Take a look; http://tinyurl.com/c7fwvsb--
The original message included these comments:

Would anyone hazard a guess as to what this is going to cost
me (obviously NOT via a Jaguar dealer!)? Would it be cheaper
to source a replacement/re-conditioned engine and have that
fitted?
JagFab, 96MY X300 4.0 Daimler Six RHD
London, United Kingdom


Gary 4.0V8 http://www.jag-lovers.org/v.htm?1253292792
London, United Kingdom
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In reply to a message from gary breyer sent Tue 27 Dec 2011:

I am wih Gary. At least here in the US, used X-300 engines go
cheap since there is practicaly NO market for them. They are just
too bulletproof. The gsket set for an engine costs asd much as the
whole engine goes for on e-bay here. I have a spare one that I
will probably never install since it looks like the original in my
X-300 will outlast the rest of the car- 235,000 miles and counting.–
Ross - 89 XJS, 98 XJR, 99 XJR, 02 XJ8
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In reply to a message from sfj642 sent Tue 27 Dec 2011:

where did all that oil go?
Well, I don’t know since, by the time I’d stopped I was some
distance from where I’d parked.

I say ‘‘bottom end’’ but I’m totally guessing. It seems too
coincidental that there’s no oil pressure and the old girl
runs lumpily with massive loss of power.

What else might it be,do you think?–
JagFab, 96MY X300 4.0 Daimler Six RHD
London, United Kingdom
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In reply to a message from JagFab sent Tue 27 Dec 2011:

I have never heard of a car losing all its oil in this way
unless someone has taken the drain plug out.

You haven’t so far mentioned the dip-stick reading;
presumably the sump IS empty?

Assuming there is no oil left - then it MUST be somewhere,
either where you normally park or on the road. That amount
would surely show.

You could probably drive the car for some way in town on
modern oils before an empty sump would cause the engine to
seize up - but you say it was lumpy and lacking power from
the start ?

Has anyone else used it perhaps or interfered with it in
some way - what you describe simply does not happen!

The plot thickens - tell us more!

Best wishes from Jim Butterworth
http://jimbutterworth.co.uk/

If it isn’t broken, fix it until it is - wise saying
If it is broken, fix it until it isn’t - ME :-))–
The original message included these comments:

I say ‘‘bottom end’’ but I’m totally guessing. It seems too
coincidental that there’s no oil pressure and the old girl
runs lumpily with massive loss of power.


1995 3.2 Sport - www.jag-lovers.org/v.htm?id=1320795768
Somerset, United Kingdom
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In reply to a message from sfj642 sent Tue 27 Dec 2011:

It seems a bit fundamental, but for less than �20 I’d stick
a few pints/ a gallon of cheapo oil in it, at least to
register on the dipstick and see what happens, rather than
agonise over what happened to it.

This has moved well away from the viability of the cost of
replacing a blown engine! You can get a lot of ‘‘Daimler’’ for
circa �5k in the UK at the minute.

So unless yours is in near Concours Condition and much
cherished, then I’d be scouring Auto Trader and the like.–
The original message included these comments:

I have never heard of a car losing all its oil in this way
unless someone has taken the drain plug out.
You haven’t so far mentioned the dip-stick reading;
presumably the sump IS empty?


Neil 70 '97 3.2S http://www.jag-lovers.org/v.htm?1242166704
MALDON, United Kingdom
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In reply to a message from Neil Maldon sent Tue 27 Dec 2011:

So now I’m really stumped. As she’s been standing for over
a day now, I just checked and the dipstick shows lots of
oil, possibly even too much!

Now I recall my partner mentioned that the oil light had
come on while she was using it and she topped it up with ‘‘a
pack from the garage’’ (a litre, presumably) of 10W/40. She
didn’t check the level first.

A friend has suggested that the no pressure and oil lamp on
is the classic failure of the sensor but that doesn’t
explain the lumpiness and loss of power. Could that be due
to her being over-filled with oil?–
JagFab, 96MY X300 4.0 Daimler Six RHD
London, United Kingdom
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In reply to a message from sfj642 sent Tue 27 Dec 2011:

I am pleased to be counted amongst your friends - see my
earlier comment !!!

The oil pressure light could come on for the reason stated -
or simply the wire fallen off? Reach up underneath the
induction manifold and you will find the switch next to the
oil filter; you will need the car on ramps for this :-((

Too much oil is not good; you might get away with a litre
too much - was the level correct before ? Do remember that
the dipstick is sensitive to the slightest slope so make
sure the car is dead level when you measure.

Why running lumpy - many reasons - start by visiting my site
http://tinyurl.com/6gz4el8
for a start. Probably not connected with the oil light but
may give you some ideas as to where to start.

Good hunting!

Best wishes from Jim Butterworth
http://jimbutterworth.co.uk/

I’m not arguing, I’m just explaining why I’m right–
The original message included these comments:

The idiot oil pressure gauge runs off the same switch as the
oil pressure light so those two indications are from the
same source. Oil pressure switches can fail of course.


1995 3.2 Sport - www.jag-lovers.org/v.htm?id=1320795768
Somerset, United Kingdom
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In reply to a message from JagFab sent Wed 28 Dec 2011:

It gets worse, back to fundamentals, drain it an refill with
the correct amount on a level surface. Assuming 1L to much
could as easily be 2L or 3L and whilst engines will run when
awash with oil, they do seem to be lumpy and lacking in
power, you may have just answered your own question.–
The original message included these comments:

oil, possibly even too much!
Now I recall my partner mentioned that the oil light had
pack from the garage’’ (a litre, presumably) of 10W/40. She
explain the lumpiness and loss of power. Could that be due
to her being over-filled with oil?


Neil 70 '97 3.2S http://www.jag-lovers.org/v.htm?1242166704
MALDON, United Kingdom
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In reply to a message from Neil Maldon sent Wed 28 Dec 2011:

If you really only have a liter or two of excess oil, I doubt very
seriously you would notice any operational difference. I suspect
that you have a bad sender and another problem- possibly related in
some way, but probably not.–
Ross - 89 XJS, 98 XJR, 99 XJR, 02 XJ8
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In reply to a message from JagFab sent Tue 27 Dec 2011:

I had an intermittent fuel pump on my 4.0L which caused some
very strange symptoms, some of which you describe.

As fuel pressure would drop suddenly the revs would fall and
the oil light would come on and the car would rock or shake.

I think there might be two problems - one with fueling
causing the rough running/shaking and lack of power, and
then a faulty oil pressure switch.

-Chris–
The original message included these comments:

Duchess was rocking slightly/running lumpily and very much
down on power. Thinking it was maybe just damp on the
electrics, I carried on for a brief period but then noticed
the oil light was on and THEN noticed that there was no oil
pressure.


Chris Los 1973 XJ6, 1996 XJ12
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In reply to a message from thetopdogg sent Wed 28 Dec 2011:

Damn - there goes my spare engine sale… :frowning:

Sorry, err, excellent news that your sump was not dry.

FWIW the 3.2 and 4.0 share very many parts, which hurts the
secondhand market even more except the US where they only
got the big version.

Pete–
The original message included these comments:

I think there might be two problems - one with fueling
causing the rough running/shaking and lack of power, and
then a faulty oil pressure switch.
-Chris


1E75339 66 D, 1E33100 66 FHC, 1R7977 69 OTS, 65 Mk2 3.8 MOD
Cambridge, United Kingdom
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In reply to a message from JagFab sent Tue 27 Dec 2011:

Many years back I ran my Triumph 6 out of oil - the engine
lasted approx 45 seconds before a bearing cap exited the sump
and the rear wheels locked up! An oil-less engine will ‘run’
the bottom end bearings, but at the same time one or more of
the pistons seizes in the bore and rips the conrod asunder.
I don’t think the car suffered oil starvation because if it
had you would know all about it!
The combination of alarm indications and rough running might
well be an ECU problem rather than a mechanical failure.
First check the oil is flowing by taking the oil fill cap off
and looking at the cams whilst its running.
If oil is flowing - start looking elsewhere.–
The original message included these comments:

the oil light was on and THEN noticed that there was no oil
pressure.


Careful what you say bout me - one day they might let me out
Basingstoke, United Kingdom
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In reply to a message from jimforrest sent Thu 29 Dec 2011:

With the help of a somewhat more mechanical friend, I
drained the excess (tiny amount, as it turned out) and
concluded that she had a misfire. She’s now at a local-ish
shop (Millenium Jag, in Croydon, Surrey) to have 2 on-plug
coils and the oil sensor changed. I have also asked them to
look at a couple of other issues, too. I will report on the
results for the benefit of the forum once she’s back home.–
JagFab, 96MY X300 4.0 Daimler Six RHD
London, United Kingdom
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In reply to a message from JagFab sent Fri 30 Dec 2011:

OK, so, 2 new coil packs and an oil pressure transducer and
we’re back in business!

On a side note, I can throughly recommend Millenium Jag in
Cryodon, Surrey, UK. Superb service.–
JagFab, 96MY X300 4.0 Daimler Six RHD
London, United Kingdom
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In reply to a message from JagFab sent Fri 30 Dec 2011:

Pleased to hear that all is resolved and the cat is purring
again - you won’t need that engine rebuild then ?

It feels so good to have been correct right from your first
post! :-))

Best wishes from Jim Butterworth
http://jimbutterworth.co.uk/

Everyone is entitled to an opinion. . . .
. . . . but I am certain mine is the right one.–
The original message included these comments:

OK, so, 2 new coil packs and an oil pressure transducer and
we’re back in business!


1995 3.2 Sport - www.jag-lovers.org/v.htm?id=1320795768
Somerset, United Kingdom
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In reply to a message from sfj642 sent Fri 30 Dec 2011:

Oi! Butterworth, don’t get carried away. Even Breyer’s stopped
clock is right twice a day :slight_smile:

Pete–
The original message included these comments:

It feels so good to have been correct right from your first
post! :-))


1E75339 66 D, 1E33100 66 FHC, 1R7977 69 OTS, 65 Mk2 3.8 MOD
Cambridge, United Kingdom
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In reply to a message from PeterCrespin sent Sat 31 Dec 2011:

Pete

and a Happy New Year to you :-)) - and MY ever-right LED
clock is working perfectly.

and if I can’t beat my own drum, then please tell me who
will . . . .

Much warmer weather than this time last year - it’s +12degC
outside at the moment !!!

Best wishes from Jim Butterworth
http://jimbutterworth.co.uk/

Just because you’re not paranoid doesn’t mean they’re not
out to get you–
The original message included these comments:

Oi! Butterworth, don’t get carried away. Even Breyer’s stopped
clock is right twice a day :slight_smile:


1995 3.2 Sport - www.jag-lovers.org/v.htm?id=1320795768
Somerset, United Kingdom
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