1.9 DG to 2.1 DJ, what should I do???

Post by **coilspring** » 28 Mar 2008, 10:26

Just got my mitts on a 2.1 DJ engine with a view to replace the original 1.9 DG in my camper.

This undoubtedly has been covered before so apologies if I'm covering old ground but would love to know more experienced opinions on the below:

1) should I keep the complete fuel injection system on the 2.1 or fit the inlet and carbs from my DG?

2) If I keep the fuel injection system, will I need to change the fuel pump or the tank or even both?

3) Can I wire the fuel injection ECU into the existing loom or do I need to change the vehicle loom?

It seems a shame to remove all the injection system from the DJ as it looks complete but what is the real advantage of this over the carb set up? worth the extra hassle do you think?

Thanks peeps, hoepfully try and get out with you lot this summer sometime!

Mark

Post by **Mocki** » 28 Mar 2008, 10:38

coilspring wrote:
1) should I keep the complete fuel injection system on the 2.1 or fit the inlet and carbs from my DG?

the choice is yours really, those of us running on LPG tend to go with the carbs, mainly because when on LPG the injectors are not used, and the carb set up works very well on the 2.1 with lpg

coilspring wrote:2) If I keep the fuel injection system, will I need to change the fuel pump or the tank or even both?

you will need to cahnge the fuel pump, the Dj engine hasnt got one fitted, as it uses a electric one mounted under the sill, near the tank outlet.the tank is the same for all intense and purpose!

coilspring wrote:3) Can I wire the fuel injection ECU into the existing loom or do I need to change the vehicle loom?

if you are going with the inj sys, you will need all the loom from the donor vehicle, and if your van is a late model, it just plugs in where your DG loom unplugged - there are two brains for the injection

Post by **coilspring** » 28 Mar 2008, 10:52

Nice one Mocki, its an early van (83) but I have the complete engine loom from the donor vehicle. Is this all I need?

apart from fuel pump, skill, willing, commitment etc......

Post by **Ye Olde Syncrospares** » 28 Mar 2008, 11:19

you will need a 2.1 fuel tank if going 2.1 as its got a swirl pot in it,cj.

Post by **coilspring** » 28 Mar 2008, 11:42

Thanks CJ, I take it a swirl pot is something internal within the tank that can't be retrofitted then?

Post by **ermie571** » 28 Mar 2008, 12:32

Coilspring....

we have two 2.1 running carbed.....didn't change the fuel tank - Is the swirl thingy only for injection?

Em
x

Post by **coilspring** » 28 Mar 2008, 13:15

Em,

Are they pierburg carbs or something more fruity? big improvement over the 1.9?

Post by **Mocki** » 28 Mar 2008, 13:31

the stock 1.9 carb is great on the DJ, loads more low down grunt, just changing the engine will open your eyes........you just have to alter the dj timing or run super unleaded fools gold......

Post by **ermie571** » 28 Mar 2008, 14:06

hi mate,

as Mocki says, we used the standard 1.9 carb on the 2.1 engine. Runs great on LPG, ok on petrol (but have found out we should be running superunleaded on the 2.1...so maybe things will improve there)

Don't need anything meaty....the 2.1 is much better performance wise than the 1.9. My camper accelerates up hills in 4th gear....the same hills that the 1.9 struggled to maintain a constant speed on. Which is why my one last 1.9 will come home next week as a 2.1! (again, on the 1.9 carb)

Have you driven a 2.1 at all??

Em
x

Post by **coilspring** » 28 Mar 2008, 14:33

em,

No I have never driven a 2.1 but glad I have bought it now looking at the comments in favour of it. OK, sounds much more straightforward just to take the intake manifold / carb off the 1.9 and bolt on to the 2.1. Think i'll do a compression test on the 2.1 before it goes in just in case. sorted!

Nice one guys and gals, looks like i'll have a injection system going spare then. If any needs anything from it, gis us a shout!!!

Post by **R0B** » 28 Mar 2008, 14:46

just to give you the other side.my 2.1 injection runs brilliantly on lpg and petrol...and i will have your injection stuff.(handy for spares) if the price is right...

Post by **coilspring** » 28 Mar 2008, 15:22

rob, as soon as I get the injection system off you can have it mate! saves me falling over something else in the garage.....

Post by **jason k** » 28 Mar 2008, 15:46

surely you will have to get the 1.9 carb rejetted to suit or you will be running lean???

Post by **coilspring** » 28 Mar 2008, 15:48

good point mate.

Em, did you need to have the carbs rejetted or do they manage as stock?

Post by **Ian Hulley** » 28 Mar 2008, 15:52

As Mocki and Em have said really ... except you'll have to swap the cooling system over ... although I believe Shepster has kept his early system post seeing the light he may be able to advise on that side of things. The 2.1 has the later DG stylee system with the addition of the oil cooler which requires a different waterpump and thermostat housing.

The 2.1 5 speed gearbox has a 4 pinion differential, although the 1.9 box will still fit and work.

BTW our's uses the DG carb, because it was gassed.

All the best, Ian.

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1.9 DG to 2.1 DJ, what should I do???

1.9 DG to 2.1 DJ, what should I do???

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