Hi, i've recently got an XUD9TE engine from a Peugeot 406 to fit my 206 1.9 N/A, rebuilding it before fitting it, but i am having some issues with the injection pump.
The injection pump is a smi electronic pump (timing advance is electronic). is there any way to get it to work mechanic ? Like the old ones ?
This is the pump:
this is the electronic stuff:
The injection pump is a smi electronic pump (timing advance is electronic). is there any way to get it to work mechanic ? Like the old ones ?
I never have one, is this some bypass valve?
Better,can advanse be manual?
it is some bypass valve i can take pitures if you want to see it...
I've had a pump similar to this one, they were on the late AAZ's as well, the ecu controlled version. The ECU should control the timing on this pump, it does so by bleeding a bit of the pressure at the back of the advance piston to the front. This is pulse controlled. You can make it work like a mechanic pump, by connecting it in a way that the solenoid valve is always closed. This way the advance piston will get full pressure all the time, but since it isn't electronically controlled anymore you will need to readjust the timing advance, it will be running too advanced. You can do this by lowering the internal pump pressure and possibly change the spring rate of the advance spring.
Is that engine direct injection?
This seems to be an IDI pump, but it's one of the later models, I have come across these peugeot 406 pumps too but they were fully mechanical, 9mm plunger and idi camplate.
One thing I would be interested in, is to know if these pumps fit our VW engines, has anybody tried that?
I had them side to side, but no engine available to test fit, but the measurements of the pump nose seem pretty close. The reason that this would be of interest, is that a peugeot 406 pump (the older version) would be an ideal pump to convert to M-TDI, it has a nice LDA (similar to GTD), and most important they have the 20mm shaft like VW TDI's have.
Not really ideal for an M-TDI if it's only a 9mm pump. You want a minimum of a 10mm just to make stock TDI power levels and you'll be looking for an 11mm or 12mm if you want any serious power.
Would be worthwhile measuring the cam lift in the pump; you can do it with a dial gauge. Just measure through the timing port like you were setting timing normally.
The reasons I asked are because it has the taller advance cap (not usually seen on IDI pumps) and it looked like it had the wider shaft and longer snout. It looks like it rotates the right direction and the accelerator lever rotates the correct way as well. It looks like it would bolt up to the AHU without issue. Change the camplate (or keep it if it is tall enough) and distributor and it would probably make a very good mTDI pump for the AHU.
I had a pump off a peugeot 406 a few weeks ago, it was defenately from an IDI engine, it also had the taller advance cap (same as vw TDI), and the same shaft TDI's have, I even fitted the vw TDI sprocket. From what I could measure, the mounting holes are the same as AAZ (slotted) and the pump nose is the same as well, only a bigger shaft.
This pump didn't have electronic control of the timing.
I have built some functioning mTDI pumps before, but they were based on AAZ pumps, so not a real good LDA and 17mm shaft. Now I'm thinking of building another mtdi for my new golf, so using a peugeot 406 pump would be a better base than an AAZ pump. It will get the 10mm plunger and camplate from a TDI, only problem that still remains is getting a suitable control lever.
Just get a Rover pump if you want an mTDI... it works without modification. Unless you already happen to have all the other parts available...
