90 2.5TD Overheating

A

andy

Guest

• Sep 1, 2005

• #1

i have recently had to replace the water pump on my 2.5TD 90, and since
doing so it keeps over heating. i have replaced the thermostat, and as
far as i can tell i have no blocks, when i refiled the system after
pump replacement, i ensured the top hose was undone, and filled until
water ran from the top of the radiator.

i am also getting a great deal of pressure build up on the filler tank,
even when left to go cold, when undone water is forced from the filler.

advise appreciated as always.

thanks in advance,

Andy

 

S

SimonJ

Guest

• Sep 1, 2005

• #2

"andy" <[email protected]> wrote in message
news:[email protected]...
> i have recently had to replace the water pump on my 2.5TD 90, and since
> doing so it keeps over heating. i have replaced the thermostat, and as
> far as i can tell i have no blocks, when i refiled the system after
> pump replacement, i ensured the top hose was undone, and filled until
> water ran from the top of the radiator.
>
> i am also getting a great deal of pressure build up on the filler tank,
> even when left to go cold, when undone water is forced from the filler.
>
> advise appreciated as always.
>
Sounds like head gasket has gone.

 

A

andy

Guest

• Sep 2, 2005

• #3

would i not get other signs too? like popping from the oil filler cap,
water in the oil etc?

 

B

beamendsltd

Guest

• Sep 2, 2005

• #4

In message <[email protected]>
"andy" <[email protected]> wrote:

> would i not get other signs too? like popping from the oil filler cap,
> water in the oil etc?
>

Not necesserily - a small leak (which it must be, or the water would
all be "punped" out a couple of seconds) between a cylinder and a
water-way does not necessrily give any other evidence. I might be
worth looking at the dip stick for evidence of the oil being a bit
creamy, or for creamy gunge at the top.

Richard

--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
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A

andy

Guest

• Sep 2, 2005

• #5

Yes, i have checked the dipstick, and it is the usual quality black, i
could probably do with a change oil, same as that left on peoples
drives when you visit

Andy

 

bellautos

Active Member

Posts

420

• Sep 2, 2005

• #6

A head gasket problem dosnt ness mean that you will get oil in the water or vice versa.

it could be a crack/gap in the gasket that is only letting pressure from as cylnder in to the water jacket.

 

A

Austin Shackles

Guest

• Sep 2, 2005

• #7

On or around 1 Sep 2005 14:32:52 -0700, "andy" <[email protected]>
enlightened us thusly:

>i have recently had to replace the water pump on my 2.5TD 90, and since
>doing so it keeps over heating. i have replaced the thermostat, and as
>far as i can tell i have no blocks, when i refiled the system after
>pump replacement, i ensured the top hose was undone, and filled until
>water ran from the top of the radiator.
>
>i am also getting a great deal of pressure build up on the filler tank,
>even when left to go cold, when undone water is forced from the filler.
>

's not got one of those filler plugs near the top of the engine has it? some
of the engines have - you could have air locks in the head area.
--
Austin Shackles. www.ddol-las.net my opinions are just that
Too Busy: Your mind is like a motorway. Sometimes it can be jammed by
too much traffic. Avoid the jams by never using your mind on a
Bank Holiday weekend.
from the Little Book of Complete B***ocks by Alistair Beaton.

 

T

Tom Woods

Guest

• Sep 4, 2005

• #8

On 2 Sep 2005 01:34:30 -0700, "andy" <[email protected]>
wrote:

>Yes, i have checked the dipstick, and it is the usual quality black, i
>could probably do with a change oil, same as that left on peoples
>drives when you visit

The head gasket can go without affecting the oil.

My car did this. It was running hot and i had lots of bubbles in the
header tank. The oil was fine. The head was warped in the middle

This does sound similar to your problems. Hopefully it is just your
head gasket thoug h - not the whole head!

 

A

andy

Guest

• Sep 5, 2005

• #9

OK, spent the weekend checking this over. flushed the radiator, found
that the small hose from top or rad to filler tank was blocked and
cleared it and refilled, very slowly ensuring no air blocks, and
yes....... this seems to have fixed the overheating and pressure build
up.......

i now seem to have a problem with my Viscous fan though, there seems to
be no air being pulled through by the fan, and still getting very hot
when cruising (if that is a term you can use with an 1988 2.5 TD
defender) at high (well highish) speed. I put on an old seized viscous
unit, which is definitely pulling air through and temperature staying
at a steady level.

anybody know if it is possible to reg viscous units reconditioned, or
do i have to fork out for a new one??

Andy

 

S

SpamTrapSeeSig

Guest

• Sep 5, 2005

• #10

In article <[email protected]>, andy
<[email protected]> writes
>(if that is a term you can use with an 1988 2.5 TD
>defender) at high (well highish) speed.

<awestruck> How do you DO that?

I've managed almost 70 on that M4 hill by the A46 junction, and it
scared the daylights out of me. If I could I'd be delighted with
overheating, but anyway it's about to get cooler round here.

> I put on an old seized viscous
>unit, which is definitely pulling air through and temperature staying
>at a steady level.
>
>anybody know if it is possible to reg viscous units reconditioned, or
>do i have to fork out for a new one??

What does the team think about the cost effectiveness of Kenlowe units,
now Diesel's gone through the roof? Gotta be better value now, Shirley?


Regards,

Simonm.

--
simonm|at|muircom|dot|demon|.|c|oh|dot|u|kay
SIMON MUIR, UK INDEPENDENCE PARTY, BRISTOL www.ukip.org
EUROPEANS AGAINST THE EU www.members.aol.com/eurofaq
GT250A'76 R80/RT'86 110CSW TD'88 www.kc3ltd.co.uk/profile/eurofollie/

 

B

Badger

Guest

• Sep 5, 2005

• #11

"SpamTrapSeeSig" <[email protected]> wrote in message
news:[email protected]...
> In article <[email protected]>, andy
> <[email protected]> writes
>>(if that is a term you can use with an 1988 2.5 TD
>>defender) at high (well highish) speed.
>
> <awestruck> How do you DO that?
>
> I've managed almost 70 on that M4 hill by the A46 junction, and it scared
> the daylights out of me. If I could I'd be delighted with overheating, but
> anyway it's about to get cooler round here.
>
>> I put on an old seized viscous
>>unit, which is definitely pulling air through and temperature staying
>>at a steady level.
>>
>>anybody know if it is possible to reg viscous units reconditioned, or
>>do i have to fork out for a new one??
>
> What does the team think about the cost effectiveness of Kenlowe units,
> now Diesel's gone through the roof? Gotta be better value now, Shirley?

Kenlowe fans, or any other electric fans for that matter, are a total waste
of money, IMO. All they do is allow the engine to thermally cycle
continuously, instead of slowly increasing to a point of equilibrium like a
viscous fan would. Oh, and where does the energy for an electric fan come
from anyway? Yep, from the engine (that would otherwise be driving the
viscous) but now we put it through conversion processes (mechanical >
electrical > mechanical) with the resultant energy losses to heat at each
conversion process. They were only a fuel saving if you compared them to an
old, solid driven fan, not a properly working viscous unit!
Badger.

 

B

beamendsltd

Guest

• Sep 6, 2005

• #12

In message <[email protected]>
SpamTrapSeeSig <[email protected]> wrote:

> In article <[email protected]>, andy
> <[email protected]> writes
> >(if that is a term you can use with an 1988 2.5 TD
> >defender) at high (well highish) speed.
>
> <awestruck> How do you DO that?
>
> I've managed almost 70 on that M4 hill by the A46 junction, and it
> scared the daylights out of me. If I could I'd be delighted with
> overheating, but anyway it's about to get cooler round here.
>
> > I put on an old seized viscous
> >unit, which is definitely pulling air through and temperature staying
> >at a steady level.
> >
> >anybody know if it is possible to reg viscous units reconditioned, or
> >do i have to fork out for a new one??
>
> What does the team think about the cost effectiveness of Kenlowe units,
> now Diesel's gone through the roof? Gotta be better value now, Shirley?
>

Your right foot is going to have far more effect on economy....

>
> Regards,
>
> Simonm.
>

Richard

--
www.beamends-lrspares.co.uk [email protected]
Running a business in a Microsoft free environment - it can be done
Powered by Risc-OS - you won't get a virus from us!!
Boycot the Yorkshire Dales - No Play, No Pay

 

S

SpamTrapSeeSig

Guest

• Sep 6, 2005

• #13

In article <55d8da64d%[email protected]>, beamendsltd
<[email protected]> writes
>Your right foot is going to have far more effect on economy....

It does already. Joking apart, I can't see the point of rushing about in
a Landy. I didn't buy it for that.

I don't speed very much, and use 5th gear as early as practical. One of
the best economies I find locally (as we have so many of them) is
anticipating traffic light behaviour - even crawling up to one is much
more efficient than re-starting from stationary. I also turn the vehicle
round at the end of a run (while it's hot), and try to arrange my route
away from home so that the beginning of any journey from cold has as
much uninterrupted running as possible. In the winter I'll insulate the
bonnet and may even board up the radiator a bit. Also I keep reasonably
high tyre pressures, and check lubrication levels often.

I suppose I could return the spare to the back door (off the bonnet),
and remove the Brownchurch, but that's getting a bit silly, and probably
wouldn't have much effect, compared to the more direct things.

I don't know exactly how well she does at the moment, but the present
prices aer a powerful incentive to do some careful measurement, and may
even justify the re-hone/rebore (she's done 150k).

<aside> One does wonder about the durability of modern engine designs:
the wife's Alhambra, 1.9 TDi VW engine is already idling mighty rough
after only three years of less-than-average miileage and mild driving. I
wonder how good it would be after 150k...

Regards,

Simonm.

--
simonm|at|muircom|dot|demon|.|c|oh|dot|u|kay
SIMON MUIR, UK INDEPENDENCE PARTY, BRISTOL www.ukip.org
EUROPEANS AGAINST THE EU www.members.aol.com/eurofaq
GT250A'76 R80/RT'86 110CSW TD'88 www.kc3ltd.co.uk/profile/eurofollie/

 

T

Tim Hobbs

Guest

• Sep 6, 2005

• #14

>
><aside> One does wonder about the durability of modern engine designs:
>the wife's Alhambra, 1.9 TDi VW engine is already idling mighty rough
>after only three years of less-than-average miileage and mild driving. I
>wonder how good it would be after 150k...
>

That engine in our Audi A3 has done 100K without incident and is still
very smooth and powerful.

That engine in our Passat has done 60K and is a bag of **** which
drinks oil, puts the service light on for no reason, yet still goes
like the clappers and does 45mpg.

That engine in a mates Alhambra did >100K and the only problem was a
stuck turbo wastegate leading to virtually no power. Quickly fixed.

I wouldn't buy another VW in a hurry (and see Nige's thread in a
similar vein), but I am seriously considering an A4/A6 with the
2.5TDi.


--

Tim Hobbs

'58 Series 2 88" aka "Stig"
'03 Volvo V70

 

R

Ralph A. Schmid, DK5RAS

Guest

• Sep 6, 2005

• #15

SpamTrapSeeSig <[email protected]> wrote:

><aside> One does wonder about the durability of modern engine designs:
>the wife's Alhambra, 1.9 TDi VW engine is already idling mighty rough
>after only three years of less-than-average miileage and mild driving. I
>wonder how good it would be after 150k...

The Opel (Vauxhall) Kadett (1.6, petrol) of my wife did 380000 km, and
it really was driven rough, but always looked after carefully, and
always driven on long distances. The clutch had been the first one,
btw.

 

S

SpamTrapSeeSig

Guest

• Sep 6, 2005

• #16

In article <[email protected]>, "Ralph A.
Schmid, DK5RAS" <[email protected]> writes
>SpamTrapSeeSig <[email protected]> wrote:
>
>><aside> One does wonder about the durability of modern engine designs:
>>the wife's Alhambra, 1.9 TDi VW engine is already idling mighty rough
>>after only three years of less-than-average miileage and mild driving. I
>>wonder how good it would be after 150k...
>
>The Opel (Vauxhall) Kadett (1.6, petrol) of my wife did 380000 km, and
>it really was driven rough, but always looked after carefully, and
>always driven on long distances. The clutch had been the first one,
>btw.

I had the 1.6 diesel, which was the same engine with a diesel head on it
(no turbo, and not the later 1.75D). It was very reliable indeed, but
not fast, nor specially economical.

The Alhambra is showing signs of insufficient testing. far too much
stuff on it either doesn't work properly or has failed prematurely. It's
a shame as the basic concept and handling of the vehicle are both great.
Right now I'm on-the-fence about having another.

Regards,

Simonm.

--
simonm|at|muircom|dot|demon|.|c|oh|dot|u|kay
SIMON MUIR, UK INDEPENDENCE PARTY, BRISTOL www.ukip.org
EUROPEANS AGAINST THE EU www.members.aol.com/eurofaq
GT250A'76 R80/RT'86 110CSW TD'88 www.kc3ltd.co.uk/profile/eurofollie/