James Cronin Posted March 26, 2008 Share Posted March 26, 2008 Ive got an D reg 90 with the original 2.5TD engine. Ive recently had the turbo replaced by a bosch service centre. Since I got it about 5 months go i have had problems with intermitant power problems. It seems that when i accelerate hard it will only get up to aboout 65mph, but if i slowly feed in the power it will easily get up to 80mph going up a hill (unloaded). I have checked the turbo pipe as I was told this could be collapsing and preventing the turbo kicking it fully, but this does not seem to be the case. I have also recently replaced the seals on the injector pump top as these all went at the same time asfter having the engine bay jetwashed (don't do this I have read of many other people suffering the same problem) - I did this myself against the advice of everybody I talked to but it has fixed the masive fuel leak. However the problem remains that it just will not get going fast if I floor the throttle. One thing i have also noticed is that if i floor the throttle it accelerates very quickly, and then the turbo kicks in and off it goes again, but then just before maximum revs there is a sudden and abrupt reduction in power (I actualy slow down), which im guessing is what is causing the problem, but I am at a loss as to what is causing it? One thought was that the injectors were very dirty and it was getting to a point where the demand for fuel just could not be supplied by the injectors and hance the fall off in power. Another symptom I have also noticed is that when your cruising at 65mph after accelerating hard my foot is to the floor, while if you slowly feed in the throttle as it picks up speed then you only need your foot half way down to be doing 80mph up a hill (and the fuel economy reflects this -you can basicly see the fuel guage moving down when its in 65mph mode.) I should point out that it was doing this before i replaced the seals, but it has improved slightly after doing this. It also happened before the turbo was changed but no where near as much - the garage say the new turbo is working fine. Finally it is also have a significant problem starting up, needing a good 40-50 seconds of engine cranking, and at least 60 seconds of plug warming before it will start. I then chucks a huuge amount of white smoke out the back, and then settles down and ticks over perfectly. just one other word of warning to anybody who is thinking of attempting to replace the seals on the injector pump lid - tighten the locking nuct up on the tickover speed screm very tightly as I almost ended up hitting a telegraph pole when the screew rattled out and jamped the throtle wide open - second word of advice - don't do it your self unless you like spening eight hours trying to get it all lined up and all the leavers enguaging again - BTW they do now. Any help would be apreciated as I am going to be selling it very sson and i need to sort it out without spending a huge amount of money on it. BTW im looking at £2500 ONO for it if anybody is interested. D reg 90 with rear windows (converted hard top - no rear seats) new turbo, water pump, and recent transfer box rebuild (with cross drilled input shaft) extra wide wheels, and 6 extra front spots. Contact me for viewing/offers James Quote Link to comment Share on other sites More sharing options...
western Posted March 26, 2008 Share Posted March 26, 2008 Firstly Welcome to LR4x4.com, PLease read the pinned info at the top of the forum thread listing page as it'll help you use the forum. as for the engine I suggest at the least testing the glowplugs for correct operation, my 110 was a TD & it always started after 15 to 25 secs of glowplugs, also examine the turbo boost pipeline a small hole in this will affect how the turbo runs. Quote Link to comment Share on other sites More sharing options...
James Cronin Posted March 28, 2008 Author Share Posted March 28, 2008 I checked the glow pulgs off the battery. They heat up in about 10 seconds when connected directly to the battery, and the wiring seems good. When [i turn it to heat the interior light and the dash lights dim so I guess they are working. Ill have a look at the turbo pipe, and see if it is leeking. I think this is a problem between the turbo and the injectors as it seems that at full power the injectors can't keep up with the turbo if this makes sence? James Quote Link to comment Share on other sites More sharing options...
Scotian Posted March 28, 2008 Share Posted March 28, 2008 65mph?? 80mph?? I can only just get to 65 on a long run with my 200tdi!!! Is your TD super tweaked or somthing? Quote Link to comment Share on other sites More sharing options...
western Posted March 28, 2008 Share Posted March 28, 2008 James it might be worth removing the injectors & getting the tested/spray pattern/pressures checked at you nearest diesl specialist, the phone book should give you your nearest place. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted March 28, 2008 Share Posted March 28, 2008 Admittedly I only skim read your post, but i didn't see any mention of the lift pump? It's certainly something i'd check/replace. Quote Link to comment Share on other sites More sharing options...
James Cronin Posted March 28, 2008 Author Share Posted March 28, 2008 I thought it could be the lift pump, but when I reprimed the system there wwas significant pressure comming out of the bleed hole (sent a jet out that hit the bonnet lid when it was open) so I guess it was not that. As to mph I've had it upto about 85 at one stage (that was going down a hill - a very steep one) but when its in a good mood it will easily cruse on the flat at 70-75mph (with the turbo screaming like hell) The main problem is the difference in fuel usage between the two 'moods' it has (as well as the extra 10mph) Quote Link to comment Share on other sites More sharing options...
Gromit Posted March 28, 2008 Share Posted March 28, 2008 65mph?? 80mph?? I can only just get to 65 on a long run with my 200tdi!!! Is your TD super tweaked or somthing? I just cruse at 70, with a roofrack on the 110. Hill or a headwind and I'm down to 60-65. 80mph? I thought that was a defender's terminal velocity in free-fall. Quote Link to comment Share on other sites More sharing options...
Gromit Posted March 28, 2008 Share Posted March 28, 2008 James, Have you checked basics like the fuel filter. Certainly sounds like it is being starved of fuel. Or a split in the fuel line that only opens under higher demand? Quote Link to comment Share on other sites More sharing options...
James Cronin Posted March 28, 2008 Author Share Posted March 28, 2008 Thanks Ill have a look at the fuel filter over the weekend - certain looks like its never been changed. As to mph I thought it was reading a bit high (as I have oversized wheels on), but I chekced it with the tomtom mph and it was reading corectly - obviously when you go up a hill/headwind it slows down. As to free fall i've not tried dropping it off a cliff - I suspect some body has somewhere and can give us an accurate figure, however as the new 110 i just had for a test drive will easily get upto 95-100mph (the dealer was a bit Mildly miffed of for me trying) I guess it could go faster if it had more power onboard! - perhapse land rover could have a go at compeating with the bugatti varon! - I guess they would need a solid fuel booster attached to it - atleast the suspension would take the weight! Quote Link to comment Share on other sites More sharing options...
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