Diesel injectors - Xantiargh!
Me again, xantia 1.9 TX LX (1995) yada yada.

MPG awful (33-35) so considering replacing injectors. Recons available £35 each, however can get 4 from a accident damage 60k xantia for £30.

Thinking of buying the 4 for £30 and fitting, if no improvement then getting the originals reconditioned.

Is it a simple case of old ones out, new ones in or is it more complicated than that?

I have a bosch injection pump, will injectors vary or are they consistent with the pump through the years. Where do I look for part code to compare?

Advice much apprec as always
Mike
Diesel injectors - M.M
Mike,

I'm very wary of introducing used parts into the equation when you've got a problem that may take several steps to resolve.

Go to Andyspares for OE exchange units if you must and you know they will be 100%. If the problem is still there you *know* it wasn't the injectors. Fit these used ones and find no improvement then you have to consider were they also u/s....and you've wasted 25% of the proper replacement cost.

Why not do as someone else with diesel starting problems here did..take out you own injectors and get then tested at a pukka diesel pump/injector specialist. At least you'll get feedback as to their actual condition and that may help with a future diagnosis...it may even cost less than the s/hand set.

Apart from the poor MPG how does it start and run now? Much smoke?

MM
Diesel injectors - Xantiargh!
It always catches first time no matter how cold. But idles a little rough for a few seconds when really cold.

No smoke to speak of on starting now, the new glow plugs seem to have sorted out the smoke cloud that used to envelope the neighbours house!

I've never noticed smoke out the back while driving, even at night in headlights of other cars while executing an Italian tune-up. I could be blind, but it just doesn't seem to smoke much.

Acceleration is fine up to the change to 4th. From 4th (around 60 mph) upwards it takes miles of road to build up speed. Overtaking another car thats travelling at 50mph is not possible without dual carriageway or m-way. The acceleration just isn't there.

If I were to see how fast I could go (hypothetically officer) it would max out around 90 and take well over a mile to get there from 60mph.

I've been running Wynns through since I got it with no improvement. Its had oil change, oil, fuel, air filter, glow plugs.

I figured I could get the scrappy injectors (from an accident damage, not an MOT failure xantia) and try em. If things improve all well and good, if not get my originals reconditioned. The missus hates me spending money on the car, apparently Kenyan safaris are more desirable than getting to work quickly and economically!

Mike
Diesel injectors - M.M
Mike,

You have to follow your own inclinations but you see what I mean about getting you own ones tested for less than the s/hand set. If they are fine you know for certain and if not just get then done and they may cost less than the Andyspares ones.

Have we mentioned possible diesel pump timing errors? Can happen after a sloppy timing belt change. That would affect the performance a great deal.

Always more questions than answers.

MM
Diesel injectors - Xantiargh!
Thanks for advice mm, I think I'll probably sleep on it before I do anything. For £30 I'm tempted to just get the injectors anyway so I can run the car while a set is being reconditioned. But that idea is a reconditioning quote away yet.

On a side note, will the condition of the glow plugs I've just taken out tell me anything about the engine condition? Are they indicators like spark plugs in petrols regarding engine condition/problems?

Mike
Diesel injectors - M.M
Mike,

Others may say different but I don't attach any importance to glowplug condition on removal.

MM
Diesel injectors - PhilW
Is the Xantia a Turbo diesel or the non- turbo?
Diesel injectors - Xantiargh!
PhilW, its a Turbo Diesel.


Maybe it is a false economy to work my way down the Haynes fault finder list!


More questions...

Would air in the fuel lines cause low power (the car pulls well to 60, but its pans above that?

Anyone know a good diesel techie in the Peterborough area?
Diesel injectors - M.M
Mike,

Why not contact Parkinsons of Vicarage Farm Road. On the very rare occasions I think injectors may be at fault I've used them.

Last bill was in 2002, £25.26 for a set of four to be cleaned and tested/set.

So who's breaking a crashed TD Xantia in P.boro then??

MM
Diesel injectors - Xantiargh!
Me if I don't find out whats wrong with the brakes (new pads required I suspect, though the squeal while cornering left without braking is interesting.) ;¬)

The pranged Xantia is at a breakers in Doncaster, did one of those part finder thingies. One of the breakers down Fengate lists 18 TDs though, K thru W I think, though I wouldn't know a good injector even if it had a halo. I was going purely by mileage and figured accident more likely to have good injectors than MOT failure.

When you say cleaned, tested/set; whats the diff between that and reconditioned? If I buy a set of 4 for £30 from Doncaster and get them cleaned, tested and set for £26 the whole caboodle will have cost £56, rather than 4x£35 + delivery for recon from Andy Spares.
Diesel injectors - M.M
Mike,

I understand the full recondition is clean, replace parts as needed, set opening pressure and test.

The injectors I mentioned were from a 25yr old Land Rover diesel and even those just needed cleaning and a slight adjustment to the pressure settings. Hence the low price because no parts were needed.

The guy commented they didn't really need doing but I wanted to eliminate them from a long term and frustrating smoking problem.

MM
Diesel injectors - Jon Cunningham-Smith
Mike,

Take it to a Bosch Diesel specialist. It will probably save you a lot of heartache and work.

My local one in Thornton Heath, South West London have a very good way of diagnosing Diesel faults.

I took my Citroen in there 18 months ago saying that the glow plugs had gone. The guy I booked it in with simply told his technicians poor cold starting was the problem.

He wouldn't take my word that it was the glow plugs. Which is good, because if they'd have changed the glow plugs and it turned out to be another problem, I wouldn't have been happy.

What this Diesel Specialist does is diagnose the problem, not the problem that the punter thinks he has.

Incidentally, it was the glow plugs, but they also spray tested the injectors and did other diagnostics.

What I'm saying is , don't assume it's one thing, just cause you have the symptom. They will also know if different injectors are used etc.

Best of luck.



Cheers - Jon S

 

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