Pump tweak

[piggysteve]

Piggysteve minor has aquired a disco 1 with an uprated intercooler and with a tweaked pump. Trouble is the old girl smokes a lot on acceleration.
Is the pump tweaked too much and if so how do we cure it ?

Cheers

Steve

[Budgie]

What colour smoke is it?

Black: Too much fuel not getting burnt - turn injector pump settings down.
Gray mist: About right - don't touch a thing.
Blue: Burning oil - bad!
White: Could be duff injector, normally accompanied by a misfire.
White vapour on starting: Head gasket has gone/water in the exhaust.

The problem is, if it's black smoke, then you don't know what has been tweeked in the injector pump so you don't really know what to turn down and by how far.
Was the intercooler & tweeking done by the last owner or the company who produced/fitted the intercooler? If it was the company then I would advise letting them have a look at it.

If you're not sure what you're doing then you can make it a lot worse and even knacker the engine if you get the exhaust gases at too higher temperature.
If you want to play then you can use this site as a guide but take note of the warnings and make a note of everything you alter & by how much so you can put it back if doesn't work.

http://dodgeram.org/tech/dsl/more_power/Power_ve.htm

It's also a good idea to start with a clean intercooler and new air filter before you start on the injector pump.  

[piggysteve]

Sorry forget to say the smoke is black. I think the pump was probably tweaked by the lads who owned the truck before.

Steve

[Guardian.]

ID BE TURNIN THE SMOKE SCREW OUT AN EIGTH OF A TURN AND I RECKON THAT WILL SORT IT OR HELP REDUCE BLACK SMOKE.
MINE SMOKES A BIT TOO MUCH ALSO BUT GOES WELL AND CANNOT BE BOTHERED TO WIND OUT AGAIN.
ITS QUITE FINE ADJUSTMENT SO DO NOT START UNWINDIN!

[hobbit]

Check the condition of the air filter as well. might  not have been changed for ages

[bilge rat]

black smoke = unburnt fuell = higher e.g.t, personaly iff your at a loss with it  i would mark the smoke screw the  torx under the little cap on top of the derv pump, mark the diaphram underneath and under the diaphram is a nerled star type adjuster. when you have marked them all turn them back 45 deg and try that. all want to go anti clockwise. obviously you do this at your own responsibility but iff it was mine thats whatr i would do. have adjusted both mine and a freinds. no probs had but you do have to be carefull but the main prob is e.g.t which can rise higher when you get as you have got un burnt fuell. also as said check the a/f .easy one that and go from there, check pump timing also. timing pins, think its 3/16 drill and think its 9mm for the d/pump. you can do this without striping the front cover off, .hope this may help. cheers alan.....

[Budgie]

The trouble is Alan, how do you know that the star wheel & smoke screw were altered as part of the intercooler upgrade?
It may have only been the diaphram that was altered, as per the instructions that I got with the Allards Intercooler I fitted to mine, and the smoke screw & star wheel could still be in the standard setup positions.

I'd do it one at a time in small increments, starting with the diaphram, and take it for a drive after each alteration to see what it's like.

[Range Rover Blues]

Is there any way of putting it back to standard and starting again? I know Julie's TDi has been tweaked and it goes like a stabbed rat, but it smokes.  I've ordered a new big intercooler for it (taking it's time arriving) and I may just fit that and leave well alone :?

I know Diesels are simple but not my familiar territory at all.

[piggysteve]

Putting the thing back to standard is the hard part when it was altered by someone else cos you have no idea what was altered and by how much.

Steve

[RichardM]

If you want to play then you can use this site as a guide but take note of the warnings and make a note of everything you alter & by how much so you can put it back if doesn't work.

http://dodgeram.org/tech/dsl/more_power/Power_ve.htm

The article here is for a 200TDi, is it the same for a 300TDi?

[bilge rat]

The trouble is Alan, how do you know that the star wheel & smoke screw were altered as part of the intercooler upgrade?
It may have only been the diaphram that was altered, as per the instructions that I got with the Allards Intercooler I fitted to mine, and the smoke screw & star wheel could still be in the standard setup positions.

I'd do it one at a time in small increments, starting with the diaphram, and take it for a drive after each alteration to see what it's like.

i dont think there is a standard point or mark on the smoke screw or star wheel , so like you say its difficult. i think there is a std setting on the diaphram though ,think theres a dot on the diaphram somewhere, think like you say move the diaphram first, only 45 deg go from there. good luck. cheers alan.....

[bilge rat]

Is there any way of putting it back to standard and starting again? I know Julie's TDi has been tweaked and it goes like a stabbed rat, but it smokes.  I've ordered a new big intercooler for it (taking it's time arriving) and I may just fit that and leave well alone :?

I know Diesels are simple but not my familiar territory at all.

worth removing the particulate filter , its ment to help reduce e.g.t and lets the turbo spin up quicker, havent done me red one though . did the blue one seems better both on standard intercoolers . cheers alan.....

[stageonesimmo]

Particulate filter?

I take it mean the exhaust catalytic converter (CAT)?  Particulate filters are a new form of science, (well to car sized vehicles anyway) and have never been fitted to any LR products.  The front box in some TDi exhaust systems is  a CAT - not a filter...........

Advice to junk it is good though, made mine go a bit better through some of the rev range, made it a bit louder too unfortunately......

[Budgie]

If you want to play then you can use this site as a guide but take note of the warnings and make a note of everything you alter & by how much so you can put it back if doesn't work.

http://dodgeram.org/tech/dsl/more_power/Power_ve.htm

The article here is for a 200TDi, is it the same for a 300TDi?

The article is for a Dodge Ram but they use the same pump as the 200 & 300 TDI, unless you have the fly-by-wire throttle version and I don't have any experience with those.  

[RichardM]

Thanks Budgie, I was going by the years it says its for, rather than the name of the pump, I thought it looked like the same as on my car

[mud boy]

the mark i think shold piont to the bolt hole in the top right roughly as you look at th pump from the drivers wing as standard but that obviosly depends on wether the smoke screw has been adjusted. just turning it round made a hell of a diff but as you say it smokes like hell so i just turned it back a little still a small amount of smoke but then it is an old landy. it did take 7 attempts at the emmisions test in the mot last week though :? hope this may be a little help for you

[piggysteve]

Thanks fellas time to get the spanners out and have a play.

Steve

[wizard]

You might find this helpfull

Diesel tuning


wizard

[piggysteve]

Sorted I think. Had to back the star wheel off a few clicks. Thanks for all the help.

Steve