Injection pump Lucas 1.7d and 1.9d

[xsaras4ever]

Hello to all.

We have a 205 - 1.7d and the Lucas injection pump is leaking.

We have a Lucas injection pump from an XUD9 - 1.9d. It looks the same, apart from the diesel return pipe (which we can swap) and the little damper on the throttle.

Any experts out there who can say if the pumps are compatible ?

Thanks in advance.

[CitroJim]

Yep, roughly so... A few small tweaks of fuelling might be needed but it should work..

Leaking Lucas pumps are often easy to fix it's hardly worth the bother of swapping them though...

Tell me where it's leaking and I'll advise on how to fix...

[xsaras4ever]

Hi Jim
Thanks for the reply - we are half-way through now - with the old pump removed.

The pump is leaking at the back - between the main aluminium body of the pump and the large iron ring out of which come the 4 injector pipes.

Got a 205 in the end - unfortunately not a td though - they are too pricey for us now.

We had to get a 5 door for work reasons.
Its a 1997 car so it has the central locking, electric windows and 5 speed box. Leaking diesel pump and dodgy alternator - otherwise ok - 200euros.

[Peter.N.]

I had a Lucas pump fail on a BX due to fuel leaking from the front bearing so I fitted a Bosch pump, went much better - probably only because the Bosch was set to a higher output but it was very good, you have to change the injector pipes as well as the injection order is different.

Peter

[CitroJim]

The pump is leaking at the back - between the main aluminium body of the pump and the large iron ring out of which come the 4 injector pipes.

I that case a swap ins best then as a leak from there neds the pump to be removed and fully dismantled...

Usually, they leak from the top cover and around the throttle and cold-start shafts and those are easily rectified in-situ...


That's a good buy... The 205D is a great car.. I've had a couple in the past...

[xsaras4ever]

Hello to all,

the 205 has the bit in the red circle and the 306 pump that we are going to fit does not - is it necessary ?

https://imgur.com/KlKSuIt

[CitroJim]

Yes and no. It'll control the glowplug post-heating by detecting when the throttle is opened more than a third whilst the coolant remains below 60 degrees. You may not notice much difference with it out of use but it should transfer across to the other pump reasonably easily...

It certainly won't be a showstopper if you don't fit it but you may end up with no post-heating or post-heating thaty goes on and on until the coolant is up to temperature.

Post-heating is used to help cold running - mainly from an emissions point of view - but it does make a difference to the smooth running of a cold engine.

[xsaras4ever]

Thanks Jim.

We will make up a bracket and fit it to the pump.

[xsaras4ever]

Bloody annoying.

Have timed this engine 3 times and every time we turn it by hand it is out half a tooth - almost a whole tooth.
Locking the flywheel through the starter hole and the camshaft and injection pump holes dont come around enough - even with the play in the flywheel to allow bit of movement.

[CitroJim]

I find it's vital to install the belt initially from the cam to pump to crank sprockets in that order and get the belt tight around those three whilst all three sprockets are firmly locked. Install the belt around the water pump and tensioner last of all. Otherwise, what happens is when the tensioner comes into play it'll tension the belt by trying to rotate the cam, pump or crank sprockets and knock the timing out by a half or a whole tooth... This is especially the case if you try to install the belt without firmly locking the crank.

Learned that the hard way...

[xsaras4ever]

Hi Jim , have done it twice the method you suggest and once the wrong way around - ie - camshaft first.

Same result all 3 times.

We did not retain the big aluminium casing/bracket that the pump is mounted on - we used the 306 casing as it looked the same. Is there any chance that its tipping the pump differently from the 205 bracket - the injection pipes went on almost ok - not an absolute perfect fit but close enough for us to tighten them up.

[CitroJim]

I'd not haver thought the bracket would have ben a problem but I'd reuse the original sprocket as the sprocket that came with the other pump may be of marginally different diameter and that could well cause the problem.

[xsaras4ever]

Same number of teeth - but we might as well change it - or just check the diameter with the digital calipers would be quicker

[xsaras4ever]

Hello to all , well , we timed it up again and this time we got it right.

The car runs , and runs well, and no more leaks from the injection pump.

Control Technique today - total spend so far is 200 euros for the car and 57 euros for a new alternator, so not bad atall.

The power steering doesn't work atall - its an electric pump tucked under the battery. Its dead.

We checked it had 12v to it and we also whacked it with a hammer - but no go.

Tempted to convert to a pulley driven pump - we have a pump, tensioner, belt and the brackets from the 306 and there looks to be the space - anyone here done this before. The electric pumps are very expensive and second-hand ones are hard to find.

[CitroJim]

Hello to all , well , we timed it up again and this time we got it right.

The car runs , and runs well, and no more leaks from the injection pump.

Excellent All the best for the CT and fingers crossed...

Shame about the PAS... Hopefully a conversion can be done but I guess a replacement rack will be needed, along with all the pipery...