Cheap Disco - Head Gasket Fail?
Cheap Disco - Head Gasket Fail?
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irodger

Original Poster:

1,143 posts

241 months

Thursday 28th October 2010
quotequote all
Found a cheap Land Rover discovery for sale, '94 2.5 TDI, 174k miles, for £600.....but.....

"DISCO 300TDi, MOT'D UNTIL AUG 2011, NO TAX (ON SORN).
VEHICLE HAS NOT BEEN USED SINCE PASSING MOT AT END OF AUGUST. HAD WATER LEAK REPAIRED AT LOCAL GARAGE BUT STILL OVERHEATS ON SUSTAINED HILL CLIMBS. GARAGE ADVISES THAT IT NEEDS HEAD GASKET REPLACED. WILL BE SOLD WITH HEAD GASKET SET INCLUDED.
VEHICLE TOO GOOD TO BREAK BUT I DON'T HAVE THE TIME TO REPAIR IT."

Does this mean that it has had head gasket failure for some time and the top end is buggered, or does it mean once the gasket is replaced it should run fine?

I can replace the gasket no probs and as it has 9 months MOT, if its ok to run I could sell it after some winter use.

The rest of the car looks quite tidy in the pics, but I'd rather not link to the ad in case someone else sneaks in!!!

Opinions of any mechanics/Landy owner types?

The Wookie

14,187 posts

251 months

Thursday 28th October 2010
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Assuming that the block and head are made out of pig iron, then as long as it hasn't been overheated to the point of grinding to a smoking halt it'll probably just be a straight swap of the gasket without any time consuming and expensive skimming neeeded

ETA - Wikipedia says alloy head, so perhaps not that simple. Might be able to find one in good nick from a scrapper to swap though?

Edited by The Wookie on Thursday 28th October 10:16

Superhoop

4,870 posts

216 months

Thursday 28th October 2010
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I'd replace the thermostat first, then see what happens

Certainly sounds cheap enough - Perfect for some winter fun and then sell on for a small profit if you're lucky

irodger

Original Poster:

1,143 posts

241 months

Thursday 28th October 2010
quotequote all
The Wookie said:
Assuming that the block and head are made out of pig iron, then as long as it hasn't been overheated to the point of grinding to a smoking halt it'll probably just be a straight swap of the gasket without any time consuming and expensive skimming neeeded

ETA - Wikipedia says alloy head, so perhaps not that simple. Might be able to find one in good nick from a scrapper to swap though?

Edited by The Wookie on Thursday 28th October 10:16
If the head is gone, it should just be a simple swap then? I'd imagine there wouldn't be much need for skimming heads/bloocks etc? Or am I just being hopeful?!

My sister works at a Jag/Landy dealership, so I've asked her to ask the chief techy what he thinks, and I could get 20% discount on parts. I'm thinking it could be either potential gold mine, or potential money pit!

frosted

3,549 posts

200 months

Thursday 28th October 2010
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At least £1000 to fix that if that skimming will work . The problem is that till you skim the head and test it you ain't gonna know

SlimRick

2,277 posts

188 months

Thursday 28th October 2010
quotequote all
Easily worth the £600 he's asking for it.


PS. Ads are easy to find if you copy and paste them word for word wink

The 300tdi is a very tough engine, a couple of hundred quid for a replacement head if needed and you can do the work yourself. The only downside I can see is that it's an Auto.

WhoseGeneration

4,090 posts

230 months

Thursday 28th October 2010
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Is this the engine with a waterpump with a plastic impellor that breaks up and leads to overheating?
Friend had this problem on a diesel RR and he had thought it was the head and wasted a lot of time on that until he checked the waterpump.

Edited by WhoseGeneration on Thursday 28th October 10:34

Cyberprog

2,304 posts

206 months

Thursday 28th October 2010
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You may be able to get the head skimmed and re-use it with the 3-hole gasket. Depends on if it's been done previously.

The Wookie

14,187 posts

251 months

Thursday 28th October 2010
quotequote all
irodger said:
The Wookie said:
Assuming that the block and head are made out of pig iron, then as long as it hasn't been overheated to the point of grinding to a smoking halt it'll probably just be a straight swap of the gasket without any time consuming and expensive skimming neeeded

ETA - Wikipedia says alloy head, so perhaps not that simple. Might be able to find one in good nick from a scrapper to swap though?

Edited by The Wookie on Thursday 28th October 10:16
If the head is gone, it should just be a simple swap then? I'd imagine there wouldn't be much need for skimming heads/bloocks etc? Or am I just being hopeful?!

My sister works at a Jag/Landy dealership, so I've asked her to ask the chief techy what he thinks, and I could get 20% discount on parts. I'm thinking it could be either potential gold mine, or potential money pit!
If you're doing the work yourself, the only way to decide would be to get the head off, get it measured to see if it needs skimming, and weigh up the cost of a scrappy head vs getting the existing one skimmed. Don't bother getting new parts unless they're minor fittings.

If you're not doing the work yourself, don't bother, it'll be a money pit and I doubt the thing's worth more than 1500 quid if it were mint

The Wookie

14,187 posts

251 months

Thursday 28th October 2010
quotequote all
WhoseGeneration said:
Is this the engine with a water pump with a plastic impellor that breaks up and leads to overheating?
Friend had this problem on a diesel RR and he had thought it was the head and wasted a lot of time on that until he checked the waterpump.
Good point, if there are no other symptoms of head gasket, it could just be the water pump

thinfourth2

32,414 posts

227 months

Thursday 28th October 2010
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Overheats on sustained hillclimbs

I bet on the radiator

frosted

3,549 posts

200 months

Thursday 28th October 2010
quotequote all
SlimRick said:
PS. Ads are easy to find if you copy and paste them
It has 80quid of diesel in it . Looks like a tidy car to me , however to me it looks like that car has been driving till it stopped working .

irodger

Original Poster:

1,143 posts

241 months

Thursday 28th October 2010
quotequote all
SlimRick said:
Easily worth the £600 he's asking for it.


PS. Ads are easy to find if you copy and paste them word for word wink

The 300tdi is a very tough engine, a couple of hundred quid for a replacement head if needed and you can do the work yourself. The only downside I can see is that it's an Auto.
Haha! I didn't think the copy and paste through did I?!!

I wouldn't be using it for any serious off-roading so the auto wouldn't be a major issue, though I agree the manual is preferrable. I'm going to contact the guy to see how honest he sounds and try and suss the car out. Is the 300tdi the newer version of the one that used to crack blocks?


Thanks for the advice smile

SlimRick

2,277 posts

188 months

Thursday 28th October 2010
quotequote all
Not heard of any particular issues with cracking blocks since the "pre-tdi" 2.5td. engines. The 300 is slightly smoother than the 200Tdi, but both excellent workhorses and damn near bullet proof.

irodger

Original Poster:

1,143 posts

241 months

Thursday 28th October 2010
quotequote all
frosted said:
SlimRick said:
PS. Ads are easy to find if you copy and paste them
It has 80quid of diesel in it . Looks like a tidy car to me , however to me it looks like that car has been driving till it stopped working .
Being full of Diesel did make me think "why fill it up that much then not use it?". But its in the hilliest part of Scotland and petrol stations are not as easy to come by as more civilised parts of the country, so this may explain it.

Bill

57,312 posts

278 months

Thursday 28th October 2010
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thinfourth2 said:
Overheats on sustained hillclimbs

I bet on the radiator
Or viscous coupling...

eltax91

10,624 posts

229 months

Thursday 28th October 2010
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Get it. The engines are bullet proof pretty much. Yeah they leak and require some TLC, but my engine is the best part of my landy. It's push road, so if the belt snaps it only bends the rods, this happened to me and I fixed it myself for £100 in parts and a crate of beer to a mate to time it back up (never timed a belt, let alone a snapped one).

If it's got a knackered head, you can pick up another lump and throw it in for £300. Easy worth the £600 he is asking. Use it for winter, when the snow starts flog it for an inflated price. smile

FamilyGuy

850 posts

213 months

Thursday 28th October 2010
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Bear in mind that Disco 2's, although extremely capable, have a horrible reputation for reliability with even LR expressing their regret over it. If you do get it and fix the overheating problem then I'd sell it on fast. I know two Disco 2 owners - one has just sold it because he just spent too much time fixing it, the other says it's fine. I asked him what he was doing at the weekend - he was replacing bushes and had sourced a great supplier for a replacement gearbox.

frosted

3,549 posts

200 months

Thursday 28th October 2010
quotequote all
That's why I would never buy LR product , ever

The Wookie

14,187 posts

251 months

Thursday 28th October 2010
quotequote all
FamilyGuy said:
Bear in mind that Disco 2's, although extremely capable, have a horrible reputation for reliability with even LR expressing their regret over it. If you do get it and fix the overheating problem then I'd sell it on fast. I know two Disco 2 owners - one has just sold it because he just spent too much time fixing it, the other says it's fine. I asked him what he was doing at the weekend - he was replacing bushes and had sourced a great supplier for a replacement gearbox.
Don't get me wrong, but isn't this a Disco 1 rather than 2? The 1 has far less complexity in it. I always thought the original models were reasonably solid, if a little temperamental electrically