2.1TD Xantia/XM/406

lolingram · Post by **lolingram** » 18 Mar 2007, 08:55

Whilst I would tend to agree (after all it is an XUD!), it is a somewhat complicated design. The main reason for the 'old' XUD's success and longevity, is its KISS design simplicity. Inverted bucket tappets just go on and on - not true of the hydraulic auto system on the 2.1TD

I reckon the 2.1 td to be best IDI engine ever.

Post by **Peter.N.** » 18 Mar 2007, 09:09

True, I have a new set to fit in mine, but on the plus side the redesigned cylinder head and cooling system prevents head failure due to boiling, and the hydraulic tappets make it quieter. These issues aside, they are still good for 300k+ with regular oil changes, and probably one head gasket.

deian · Post by **deian** » 18 Mar 2007, 21:04

my lucas epic 2.1td is still on it's first head gasket and still going strong at over 205k miles, i reckon it's all down to preventative maintenance.

davethewheel · Post by **davethewheel** » 18 Mar 2007, 22:05

my 2.1td xantia 140k has a mystery water leak, uses around half a litre a month and i'm just praying it's not the head gasket.

KP · Post by KP » 18 Mar 2007, 22:40

Our main 2.1td at the moment is on about 170k with 1st of everything bar clutch clutch and turbo which its had 1 of each, and the new project one has had no replacment anything from what weve been given in the history and can see from the MOT's on a genuine 88k miles from new in 1999

If anyone wants a nice 2.1td its in the for sale section

Post by **Peter.N.** » 19 Mar 2007, 00:27

I think that lack of antifreeze or should I say the the anti corrosive additive that it contains, was what caused the demise of mine at about 120k, the gasket literally fell to pieces when I took it off. Since changing it about 40k ago, and fitting a new rad and about 50% antifreeze, the water level doesn't move. They are a pig of a job to do but if the car is worth it, it will probably double the engine life.

lolingram · Post by **lolingram** » 19 Mar 2007, 05:34

Could be a slow leak past the water pump gland... only when under pressure at first.

my 2.1td xantia 140k has a mystery water leak, uses around half a litre a month and i'm just praying it's not the head gasket.

davethewheel · Post by **davethewheel** » 19 Mar 2007, 12:15

lolingram wrote:Could be a slow leak past the water pump gland... only when under pressure at first.
my 2.1td xantia 140k has a mystery water leak, uses around half a litre a month and i'm just praying it's not the head gasket.

i hope it is something like that and not the head gasket, i really don't feel like tackling that job

lolingram · Post by **lolingram** » 19 Mar 2007, 15:21

Head joints don't usually linger that long...

hope it is something like that and not the head gasket, i really don't feel like tackling that

steelcityuk · Post by **steelcityuk** » 19 Mar 2007, 22:11

There's a thread here where a member converts his XM from Lucas to Bosch -

http://autos.groups.yahoo.com/group/XM-L/message/59810

Steve.

KP · Post by KP » 19 Mar 2007, 23:42

Any chance of a link or pasting jobby as im not registered with Yahoo

Pretty please

lolingram · Post by **lolingram** » 20 Mar 2007, 07:07

2.1 epic to mech pump

For info just finished converting a 2.1td with the fly by wire epic pump to
a Lucas mechanical pump.

1st impressions, it goes better than it did with the electronic pump, also
better than my other 2.1 which was mechanical from the factory.

Only downside is the rev counter does not work so must pick it's signal up
from/through the pump

//Chris

Any chance of a link or pasting jobby as im not registered with Yahoo

KP · Post by KP » 20 Mar 2007, 15:20

Ah i was hoping that someone had found a Bosch pump and injectors that fitted the setup

Ah well i live in hope still!

lolingram · Post by **lolingram** » 20 Mar 2007, 15:27

No revcounter is not the end of the world...

Ah i was hoping that someone had found a Bosch pump and injectors that fitted the setup

KP · Post by KP » 20 Mar 2007, 18:10

Its nota bosch pump though as if there is a bosch pump thats decent enough to fit in there it would mean SVO could be used instead of Dino Diesel.