2.1TD engines

NiSk · Post by **NiSk** » 15 Oct 2006, 16:18

And I'm pretty sure that the bottom end of the 2.1 was beefed up considerably with regard to the 1.9. The 2.1 has a remarkable record for longlivety - my own managed 530 000 km before a Volvo F12 put a rather large dent in the side and the insurance company wrote it off!

//NiSk

JohnD · Post by **JohnD** » 15 Oct 2006, 18:51

[quote="KP"]Im sure they all share the same bottom end near enough so they should all be interchangablequote]

These are some of the differences:
XUD9 bore 83mm, XUD 11 bore 85mm, XUD9 stroke 88mm, XUD11 stroke 92mm. XUD9 piston pin 25mm, XUD11 pin 30mm, Main bearings are the same but thrustwashers are different. Timing belts are different.

KP · Post by KP » 16 Oct 2006, 00:57

Im sure someone on here had already said the blocks were near enough the same? Sorry i didnt mean teh shortblock but the block itself as id seen those specs before so know the pictons are a tiny bit larger for the higher capacity

Post by **Peter.N.** » 23 Oct 2006, 01:02

All the XMs up until '96 used a mechanical pump, well at least all mine have! I did buy a engine from a later one and that had the electronic pump. There are quite a number of scrap early XMs about, I would think that you would be able to get a pump for not to much money and change it over.

The 1.9 and 2.1 blocks are similar but not identical. The 2.1 has the thermostat in the radiator return and is located at the back of the engine near the bottom at the cam belt end. I would agree that the 2.1 is a very good engine, the last XM I sold had covered 292 k miles and was still going.

The CX engine was a one off by Citroen and was very good for its time, it even had a cam belt! The 505 engine was, as allready mentioned, a successor to the XD88 engine used in the 404 and was rather agricultural compared with the Citroen. It was also used in the Granada and Sierra. I had a 404 diesel, a very comfortable car but you needed ear defenders to exceed 60 mph!

BonceChops · Post by **BonceChops** » 23 Oct 2006, 21:21

Peter.N. wrote:I would think that you would be able to get a pump for not to much money and change it over.

I think you would need the thermostat housing as well. I was looking at a 605 engine in a breakers today as I was thinking of changing my faulty electronic pump for a mechanical one. The cold start device on the lower front side of the pump looks like it is connected into the cooling circuit from the thermostat housing (on second thoughts it is not the thermostat housing but where the stat would be if it was a 1.9 engine

)

Post by **Peter.N.** » 23 Oct 2006, 22:15

You could well be right, but my experience with early CAV pumps has led me to believe that the cold start device generally has little effect.

BonceChops · Post by **BonceChops** » 24 Oct 2006, 16:03

I thought the 605/XM's had a Bosch pump on them.

Post by **Peter.N.** » 24 Oct 2006, 22:41

I think they could have either, or at least the early ones did. There are two sets of holes in the front plate for mounting either type of pump. If you change the pump you must also change the injector pipes or you end up with the timing all wrong as they are connected to different injectors.

BonceChops · Post by **BonceChops** » 25 Oct 2006, 19:55

I have an EPIC pump wizzing its way to me from ebay land. I hope it fixes my fault

Post by **Peter.N.** » 25 Oct 2006, 22:24

So do I!