Injector lifespan

[gords]

Just a general question really (re. 300 TDi) ... are the injectors a "service" item? i.e. should they be replaced at certain intervals?

I suppose the same question goes for the glow plugs!?

[Paul.K/LuckyTrucker]

The easy answear is yes. Does it smoke, is fuel consumption poor is it short on power. If the answear is yes then the first thing to do is buy some injector cleaner, Wynns do a fine one about £8.00 and give that a go. If it is still poor after that then I would suggest a visit to a Diesel Specialist, you should find one in Yellow Pages and they can check it all. Oh! I forgot to mention is the air cleaner in good nick.
I think that is the route I would take. Best of luck.

[MTyrrell]

I think they have a 10000 mile life span (TDi), someone may be able to confirm though.

 I got a quote from a local specialist for a set of reconditioned injectors for my 200TDi, with the old ones on exchange for £200 for the full set.

[gords]

I think they have a 10000 mile life span (TDi), someone may be able to confirm though.

10,000?  :shock:  Or did you mean 100,000?

[MTyrrell]

I think they have a 10000 mile life span (TDi), someone may be able to confirm though.

10,000?  :shock:  Or did you mean 100,000?

 Sorry missed a zero, I did mean 100,000

[Boomer]

I think the quoted life of 300Tdi injectors is 100,000 KMs, or about 62,000 miles.
In saying that my 300Tdi has just clicked over 200,000 miles on the original injectors, doesn't smoke, runs smoothly and still gives 32/33 mpg ! I have however replaced the glow plugs at about 120,000 mls.
Oil pressure is 50psi+ when cold and about 40psi at normal temp and speed (about 2000 rpm).
Hats off to good old british metal !!

[mark.yellow.series.3]

largley depends on the quality of the fuel that has been used over the life of the injectors, the more moisture/ water in the fuel the quicker they will knackered. also how the car has been driven will affect there efficiency.

go to your nearest diesel service shop and get a price on having them reconned. if you can afford it, then get it done, it will only improve things. but bare in mind the state that your injectors are in, will be the same as the state your fuel infection pump will be in. I.E. knackered injectors will mean FI pump isnt far behind.

[hobbit]

Just looking through the schedules,
24,000 (2 years) check/report
48,000 (4 years) check/report
72,000 (6 years) check/clean
96,000 (8 years) check/clean
all miles, no referal to any other operations on the injectors, I suppose if you have any probs you deal with it then
The actual report is for a defender, on the disco one it does not record when to check them at all, had to look twice to be sure I was looking at the right one :?
Also timing belt is 72,000 miles apart

[Paul.K/LuckyTrucker]

Hi there, are you brave enough to let a cam belt go for 72,000 miles. I am not. I would be looking 60,000 for piece of mind. Next time the rev counter is getting near 4,000 rpm :twisted:  when ovetaking or towing heavy going up hill then it is nice to know nothing is going to let go.

[gords]

Next time the rev counter is getting near 4,000 rpm :twisted:  

OK - now for a bit "off topic" (it's my topic anyway ) - 4,000 rpm  :-k  - I'm not sure mine would get that far?!

So, what is the rev range/limit of a 300TDi?

[Cal]

Your tyre size might affect the rpm you can get up to Gords??

[gords]

Your tyre size might affect the rpm you can get up to Gords??

Yes, it possibly does - but even in low gears it doesn't like to rev as hgh as 4,000 - I don't think ... I'll try and remember to test it tomorrow

[hobbit]

The figure for the cam belt would be listed for light use, obviously for heavier work it would come down not sure what too, but I think normally a third less

[Elmo]

My cam belt - just changed - did 130000 miles.
Mind you I did have a dose of the sweats when I finally saw it - was only changed "as a precaution" because I didn't know the history of the car. Glad I did :)

[Tiny Tim]

Mitsi mechanics in NZ reckon that diesel injectors should be changed every 50,000 km for best performance.

Not car specific just they suffer a lot of abrasion.

[hobbit]

Regular servicing on the vehicle, filters and oil etc will help, an occasional additive in the tank to clean the injectors too wont do any harm

Still no guarantee on when to do them though.

One telltale sign would be the consumption and also mot test on the emissions

Obviously cheap dodgy diesel can do nastery things too

[Paul.K/LuckyTrucker]

Hi there, yes mine revs to 4,000 rpm no problem, I don't like to hold it there too long just incase. Maybe the reason it revs so easily is because it gets regular injector cleaner and it is on 205x16" tyres. I never beleived in any of it until I bought some at basement price , not a well known brand it was in a dull looking pakaging so I thought why not. It put a whole new edge to the performance of my MK1 Trooper. I suppose it is about once a month it gets the treatment just before I have to tow our club trailer that when loaded goes somewhere around 2 1/2 - 3. tons so any help is appreiciated.

[Boomer]

I believe the maximum revs for a 300Tdi is 4250, I would guess the engine is governed to this figure.
I rarely take mine over 3000, don't seem to need to go any quicker getting up to speed, generally don't go much over 2500 in top when cruising.
Maybe I'm just a boring old f@rt !!

[davidlandy]

yep- sounds like it Im afraid