td5 disco noisey injectors

hi my injectors are really noisey ???? when reviving at low they chatter like hell and when letting off on engine over run they are noisey ???? any clue put injector cleaner through no change

has it always been like it or has it just started

started when mcdonald landrover changed the injector seals and orings but has now got worse over a period of 2 mnths

Then maybe you ought to take the cam cover off and check the EUI clamps are tight,along with the rocker shaft and the locknuts on the EUI rockers.Before it trashes itself.

so you think it could be the rocker shaft lose????

we are going to sort it out weekend pull it apart and see

hi no not loose jst wernt set up right

but still noisey set them right turn all the way in and one turn out my mate does it hes a mechanic.. the rockers are mint no wear on them .. what about hydrolic lifters ????? not sure?? only does it when warm and when your going slowish and let off they chatter they all do it but not as noisey as mine ?????

I have a similar problem only mine is a lot noiser when cold (sounds like a bag of spanners! unless reved over 300rpm). was going to check the adjustments on the injector plungers at the weekend

hi yeah done that they were all over the place so set them up turn them all the way in and one turn out done 1 to 5 lining them up on the shaft and still noisey ass hell ???? it must be the inturnalls in the injectors themselves or the hydrolic lifters?????? any one else know ??????????

over time crap carbon builds up on the inside of a engine, and the carbon deposits fill the gaps where parts have worn down slightly and if you flush it the carbon gets removed and lets the parts i.e the lifters move. could be just down to ware and tear. Was like that on my Vectra

so what new rocker shaft then????

no, the movement is tiny!! but enough to hear. my vectra is still like it and started to go at about 88K and now she over 109K still strong

thicker oil then 15w 40 semi

i run 15-40 semi in my td5 runs loverly. On the TD5 the injectors are controlled by their own rockers if these are not set correctly then it will sound tappy like when your rockers need setting, Also it may cause it to be down on power and not fire the injector at the correct time if these arnt set correctly

i have set them turn them all the way in and 1 turn out and lock them up you can only set them as the rocker arms only work the injectors

must be the hydrolic lifters then ???? can these be adjusted?????

still rattles like hell must be top end any one know who overhauls heads and how much????

Are you SURE you are setting the injector clearances properly?

Are you having to turn the engine over to the correct position to adjust EACH injector, a new crankshaft position for each injector? I heard of a guy just adjusted all five without moving the engine at all .... OUCH! He read Rave and it said set No1 to full lift.

Once set up right with the "one turn up" clearance, you should never ever need to touch these again. They do NOT go out of adjustment.

But as Eightinavee says, you'll need to be sure it is all torqued down properly, or else ....

Rave says ..

6. Rotate engine clockwise until No 1 injector lobe
is at full lift.
7. Rotate rocker adjusting screw clockwise until
the injector plunger is felt to bottom out.
8. Rotate rocker adjusting screw anti-clockwise
one complete turn to give plunger the required
bump clearance and tighten rocker arm
adjusting screw locknut to 16 Nm (12 lbf.ft) .
9. Carry out above procedure for the remaining 4
rocker arms.

(Rave does not point out that for EACH cylinder you must rotate THAT injector rocker to full lift THEN adjust for bump clearance! So for item 6. above after you have adjusted No1, start again but change the "No 1" to No 2, then No3, then No4, then No 5, and you MUST turn the engine for each)

10. After completion of rocker arm adjustment,
slowly rotate engine clockwise 2 complete
turns by hand to ensure that no injectors are
bottoming out on their plungers.

This won't be nearly as easy as Rave suggests!

If it isn't any of these, think cam follower.

CharlesY

hi yes done that 1 to 5 clock wise 1 turn out .. dnt think its them .. when driving you put your foot on peddle and get up to 2000 rpm and then let foot off frottle it chatters like mad been in other discos they do it but its really quiet mine is loud as hell..