Disco 300 Tdi getting hot under load.

As subject says, Discovery 300Tdi '96/97 3 door manual, just had head gasket
replaced. Runs great solo, around town etc until we either load it fully
with five people and luggage, or tow, or try to maintain motorway speeds.

Solo, above 65 mph the engine starts to get hot, if we go to 70 the gauge
will creep up to the red mark, but then I slowed down ... When towing the
caravan, or when loaded fully we have to keep to 50 or less and any incline
makes the gauge creep up. I took the caravan, with wife and kids, to
Skegness this weekend and came back solo.

Previous to the head gasket blowing and being replaced I could tow at any
speed, any weight, loaded, unloaded etc with the temp gauge never rising
above horizontal. It's as though the cooling system is blocked, or
struggling to cool at higher engine loads.

Anyone a clue as to what I ought to do to solve this?

I'm not too good on diesel (or petrol for that matter unless they're 2
stroke m/cycle Trials bikes) engines but am learning fast ...

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

Paul - xxx wrote:
>
> Anyone a clue as to what I ought to do to solve this?

Re-do the head gasket job, and this time do it properly.



--
EMB

EMB came up with the following;:
> Paul - xxx wrote:
>>
>> Anyone a clue as to what I ought to do to solve this?
>
> Re-do the head gasket job, and this time do it properly.

I didb't do it, but IKWYM.

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

In message <[email protected]>
"Paul - xxx" <[email protected]> wrote:

> As subject says, Discovery 300Tdi '96/97 3 door manual, just had head gasket
> replaced. Runs great solo, around town etc until we either load it fully
> with five people and luggage, or tow, or try to maintain motorway speeds.
>
> Solo, above 65 mph the engine starts to get hot, if we go to 70 the gauge
> will creep up to the red mark, but then I slowed down ... When towing the
> caravan, or when loaded fully we have to keep to 50 or less and any incline
> makes the gauge creep up. I took the caravan, with wife and kids, to
> Skegness this weekend and came back solo.
>
> Previous to the head gasket blowing and being replaced I could tow at any
> speed, any weight, loaded, unloaded etc with the temp gauge never rising
> above horizontal. It's as though the cooling system is blocked, or
> struggling to cool at higher engine loads.
>
> Anyone a clue as to what I ought to do to solve this?
>
> I'm not too good on diesel (or petrol for that matter unless they're 2
> stroke m/cycle Trials bikes) engines but am learning fast ...
>

Have a look at the back of the radiator (take the cowl out . The
front can look absolutely fine, but the back can have almost all
the small vanes missing. In that state it will give exactly the
symptoms you desribe.

Richard
--
www.beamends-lrspares.co.uk [email protected]
RISC-OS - Where have all the good guys gone?
Lib Dems - Townies keeping comedy alive

eckon you need to look at your fan - are the bearings knackerd?

Change the viscous fan - I am sure this sounds liek a fan problem.

Andy


"beamendsltd" <[email protected]> wrote in message
news:b08b58564e%[email protected]...
> In message <[email protected]>
> "Paul - xxx" <[email protected]> wrote:
>
>> As subject says, Discovery 300Tdi '96/97 3 door manual, just had head
>> gasket
>> replaced. Runs great solo, around town etc until we either load it fully
>> with five people and luggage, or tow, or try to maintain motorway speeds.
>>
>> Solo, above 65 mph the engine starts to get hot, if we go to 70 the gauge
>> will creep up to the red mark, but then I slowed down ... When towing the
>> caravan, or when loaded fully we have to keep to 50 or less and any
>> incline
>> makes the gauge creep up. I took the caravan, with wife and kids, to
>> Skegness this weekend and came back solo.
>>
>> Previous to the head gasket blowing and being replaced I could tow at any
>> speed, any weight, loaded, unloaded etc with the temp gauge never rising
>> above horizontal. It's as though the cooling system is blocked, or
>> struggling to cool at higher engine loads.
>>
>> Anyone a clue as to what I ought to do to solve this?
>>
>> I'm not too good on diesel (or petrol for that matter unless they're 2
>> stroke m/cycle Trials bikes) engines but am learning fast ...
>>
>
> Have a look at the back of the radiator (take the cowl out . The
> front can look absolutely fine, but the back can have almost all
> the small vanes missing. In that state it will give exactly the
> symptoms you desribe.
>
> Richard
> --
> www.beamends-lrspares.co.uk [email protected]
> RISC-OS - Where have all the good guys gone?
> Lib Dems - Townies keeping comedy alive

Hi Paul,
if you had a head gasket replaced, and I'm guessing this
caused the head to overheat, I would suggest that you remove the
radiator and get it to a radiator shop to dismantle and flush out.

When the head gets overheated, it dumps a lot of rubbish into the
radiator. I have just been through this process, and we found the
radiator was 36% blocked.

Cheers

Phillip



On Mon, 14 Aug 2006 09:31:43 +0100, "Paul - xxx"
<[email protected]> wrote:

>As subject says, Discovery 300Tdi '96/97 3 door manual, just had head gasket
>replaced. Runs great solo, around town etc until we either load it fully
>with five people and luggage, or tow, or try to maintain motorway speeds.
>
>Solo, above 65 mph the engine starts to get hot, if we go to 70 the gauge
>will creep up to the red mark, but then I slowed down ... When towing the
>caravan, or when loaded fully we have to keep to 50 or less and any incline
>makes the gauge creep up. I took the caravan, with wife and kids, to
>Skegness this weekend and came back solo.
>
>Previous to the head gasket blowing and being replaced I could tow at any
>speed, any weight, loaded, unloaded etc with the temp gauge never rising
>above horizontal. It's as though the cooling system is blocked, or
>struggling to cool at higher engine loads.
>
>Anyone a clue as to what I ought to do to solve this?
>
>I'm not too good on diesel (or petrol for that matter unless they're 2
>stroke m/cycle Trials bikes) engines but am learning fast ...

On or around Wed, 16 Aug 2006 17:28:33 +1000, Phillip Simpson
<[email protected]> enlightened us thusly:

>Hi Paul,
> if you had a head gasket replaced, and I'm guessing this
>caused the head to overheat, I would suggest that you remove the
>radiator and get it to a radiator shop to dismantle and flush out.
>
>When the head gets overheated, it dumps a lot of rubbish into the
>radiator. I have just been through this process, and we found the
>radiator was 36% blocked.

that or replace the rad.

now that's a good tip, though. might be how the disco here ended up doing
it's head gasket again. I'll definitely investigate, when I get to
repairing it. The disco TDi rad is already smaller than a V8 one so as to
make room for the intercooler, and so if it's partly blocked, it could
easily not provide enough cooling for hard work or hot weather.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Pereant qui ante nos nostra dixerunt"
(confound the men who have made our remarks before us.)
Aelius Donatus (4th Cent.) [St. Jerome, Commentary on Ecclesiastes]

beamendsltd came up with the following;:
> In message <[email protected]>
> "Paul - xxx" <[email protected]> wrote:
>
>> As subject says, Discovery 300Tdi '96/97 3 door manual, just had head
>> gasket replaced. Runs great solo, around town etc until we either load
>> it fully with five people and luggage, or tow, or try to maintain
>> motorway speeds.
>>
>> Solo, above 65 mph the engine starts to get hot, if we go to 70 the gauge
>> will creep up to the red mark, but then I slowed down ... When towing the
>> caravan, or when loaded fully we have to keep to 50 or less and any
>> incline makes the gauge creep up. I took the caravan, with wife and
>> kids, to Skegness this weekend and came back solo.
>>
>> Previous to the head gasket blowing and being replaced I could tow at any
>> speed, any weight, loaded, unloaded etc with the temp gauge never rising
>> above horizontal. It's as though the cooling system is blocked, or
>> struggling to cool at higher engine loads.
>>
>> Anyone a clue as to what I ought to do to solve this?
>>
>> I'm not too good on diesel (or petrol for that matter unless they're 2
>> stroke m/cycle Trials bikes) engines but am learning fast ...
>>
>
> Have a look at the back of the radiator (take the cowl out . The
> front can look absolutely fine, but the back can have almost all
> the small vanes missing. In that state it will give exactly the
> symptoms you desribe.

Cheers for that, but no, all looks fine on t'outside.

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

Phillip Simpson came up with the following;:
> Hi Paul,
> if you had a head gasket replaced, and I'm guessing this
> caused the head to overheat, I would suggest that you remove the
> radiator and get it to a radiator shop to dismantle and flush out.
>
> When the head gets overheated, it dumps a lot of rubbish into the
> radiator. I have just been through this process, and we found the
> radiator was 36% blocked.

Cheers, I hadn't thought of that and will give it a try when I get the
vehicle back and a tuit. I guess a lot depends on what it's like when I get
it back, though I guess I'll do it myself this time.

Currently the vehicle is at RCV in Doncaster (they who did the head first
time round) with the head off apparently being pressure tested. It seems
they didn't do this first time round as "...it was obvious where the gasket
had gone, though there looked to be no other damage..."

Need it back by tomorrow too as wife and kids are still in Skegness and I
need (well, need might be too strong a word) to get them and the caravan
home ...

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

Austin Shackles came up with the following;:
> On or around Wed, 16 Aug 2006 17:28:33 +1000, Phillip Simpson
> <[email protected]> enlightened us thusly:
>
>> Hi Paul,
>> if you had a head gasket replaced, and I'm guessing this
>> caused the head to overheat, I would suggest that you remove the
>> radiator and get it to a radiator shop to dismantle and flush out.
>>
>> When the head gets overheated, it dumps a lot of rubbish into the
>> radiator. I have just been through this process, and we found the
>> radiator was 36% blocked.
>
> that or replace the rad.
>
> now that's a good tip, though. might be how the disco here ended up doing
> it's head gasket again. I'll definitely investigate, when I get to
> repairing it. The disco TDi rad is already smaller than a V8 one so as to
> make room for the intercooler, and so if it's partly blocked, it could
> easily not provide enough cooling for hard work or hot weather.

That's what I was thinking, but I hadn't thought of the gasket blowing
putting any more 'bits' into the system, but it's pretty obvious when it's
mentioned ... I'm waiting for a call to tell me mine's ready (again) and
will immediately give it a thrash up the motorway to check it ...

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

On Wed, 16 Aug 2006 11:14:22 +0100, "Paul - xxx"
<[email protected]> scribbled the following nonsense:

>Phillip Simpson came up with the following;:
>> Hi Paul,
>> if you had a head gasket replaced, and I'm guessing this
>> caused the head to overheat, I would suggest that you remove the
>> radiator and get it to a radiator shop to dismantle and flush out.
>>
>> When the head gets overheated, it dumps a lot of rubbish into the
>> radiator. I have just been through this process, and we found the
>> radiator was 36% blocked.
>
>Cheers, I hadn't thought of that and will give it a try when I get the
>vehicle back and a tuit. I guess a lot depends on what it's like when I get
>it back, though I guess I'll do it myself this time.
>
>Currently the vehicle is at RCV in Doncaster (they who did the head first
>time round) with the head off apparently being pressure tested. It seems
>they didn't do this first time round as "...it was obvious where the gasket
>had gone, though there looked to be no other damage..."
>
>Need it back by tomorrow too as wife and kids are still in Skegness and I
>need (well, need might be too strong a word) to get them and the caravan
>home ...
if you are stuck tomorrow, mail me off list, just ROT 13 the addy.
Smegness is only 3/4 hour away.
--

Simon Isaacs

"Bad officials are elected by good citizens who do not vote"
George Jean Nathan (1882-1955)

ROT13 me....

Simon Isaacs came up with the following;:
> On Wed, 16 Aug 2006 11:14:22 +0100, "Paul - xxx"
> <[email protected]> scribbled the following nonsense:
>
>> Phillip Simpson came up with the following;:
>>> Hi Paul,
>>> if you had a head gasket replaced, and I'm guessing this
>>> caused the head to overheat, I would suggest that you remove the
>>> radiator and get it to a radiator shop to dismantle and flush out.
>>>
>>> When the head gets overheated, it dumps a lot of rubbish into the
>>> radiator. I have just been through this process, and we found the
>>> radiator was 36% blocked.
>>
>> Cheers, I hadn't thought of that and will give it a try when I get the
>> vehicle back and a tuit. I guess a lot depends on what it's like when I
>> get it back, though I guess I'll do it myself this time.
>>
>> Currently the vehicle is at RCV in Doncaster (they who did the head first
>> time round) with the head off apparently being pressure tested. It seems
>> they didn't do this first time round as "...it was obvious where the
>> gasket had gone, though there looked to be no other damage..."
>>
>> Need it back by tomorrow too as wife and kids are still in Skegness and I
>> need (well, need might be too strong a word) to get them and the caravan
>> home ...
> if you are stuck tomorrow, mail me off list, just ROT 13 the addy.
> Smegness is only 3/4 hour away.

Cheers for that, much appreciated. I think we'll be OK though as she's
decided she and the kids can stay until at least Saturday evening now and we
won't need to get her home until Sunday, maybe even Monday/Tuesday if the
weather is [1] anything like reasonable as it's the school holidays so
there's no pressing reason to come home .... I'm not sure I can standpeace &
quiet in the house for much longer though ...

[1] I'm fervently praying for high pressure and a heatwave ...

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

Paul - xxx wrote:

|| Need it back by tomorrow too as wife and kids are still in Skegness
|| and I need (well, need might be too strong a word) to get them and
^^^^
|| the caravan home ...

Ought?

--
Rich
==============================

I don't approve of signatures, so I don't have one.

beamendsltd came up with the following;:
> In message <[email protected]>
> "Paul - xxx" <[email protected]> wrote:
>
>> Anyone a clue as to what I ought to do to solve this?
>>
>
> Have a look at the back of the radiator (take the cowl out . The
> front can look absolutely fine, but the back can have almost all
> the small vanes missing. In that state it will give exactly the
> symptoms you desribe.

Bang on, Richard. I'd looked down and could only see the bottom third of
the rad which looked fine. When we took the cowling off 2/3rds of the rad
vanes were missing, new rad fitted and all's hunky dory.

It's gotta be said .... I owe you one Richard, thanks, much appreciated.

I called Richard Monday evening, he could get a radiator for us quickly and
indeed it was delivered today and fitted, despite my best efforts to screw
with Richards systems. I'd given him the wrong credit card number and not
even asked him to courier it to us. Despite that it's now all sorted, and
within 20 ,inutes of being fitted the rad (and the Disco) pulled the caravan
up the M18 from J4 to J1, which if anyone knows it is a long uphill slog, at
between 60 and 70 4th and 5th gear with absolutely no movement of the
temperature gauge at all.

Result.

Off to Telford tomorrow with full Disco and full caravan ...

--
Paul ...
(8(|) Homer Rules ..... Doh !!!

Paul - xxx <[email protected]> uttered summat worrerz
funny about:
> Result.
>
> Off to Telford tomorrow with full Disco and full caravan ...

Excellent work!

Give us a wave if you pass us on the M6 South, Ace Jubilee Globe trotter
pushing a 101 Ambi ;-)

Lee D