gee1599 Posted November 22, 2009 Share Posted November 22, 2009 can anyone give me any pointers i have a defender 200 tdi and it wont even go above 60mph its standard i have cheked the boost level its at 10 to 11 psi it just seams so slow when you get to 3rd 4th and 5th gear also there is no smoke from the exhaust at all what can you recomend me to check or replace (p.s my mate has just got one aswell with big tyres etc and there is no way i can keep up please help) Quote Link to comment Share on other sites More sharing options...
western Posted November 22, 2009 Share Posted November 22, 2009 remove & examine all the big bore air intake hoses, sometimes the delaminate inside & cause a restiction & if fairly old might collapse inward when the vehicle is working hard. when was the fuel filter last changed, a new one might help is the fuel lift pump working as these can affect driveability if not functioning correctly have a look in the tech archive index for the fault diagnosis sheets for more things to check/adjust. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted November 22, 2009 Share Posted November 22, 2009 ... and check that you have a nice clean air filter. Mo Quote Link to comment Share on other sites More sharing options...
Juz Posted November 23, 2009 Share Posted November 23, 2009 My 200tdi had no power and wouldn't go over 55mph - turned out the injectors needed refurbing. I also tweaked the fuel pump at the same time. Loads of power, a joy to drive now. Juz Quote Link to comment Share on other sites More sharing options...
gee1599 Posted November 23, 2009 Author Share Posted November 23, 2009 ive gave it a service to day ie done fuel filter,air filter,oil filter,glow plugs,cam belt,all fluids engine,gear box,trans box and diffs cleaned out intake pipes and inter cooler checked all intake pipes and hoses with still no joy im at a loose end now and it the back of my mind is should i get rid of it what would you say i should check now ???? Quote Link to comment Share on other sites More sharing options...
western Posted November 23, 2009 Share Posted November 23, 2009 try a new fuel lift pump Quote Link to comment Share on other sites More sharing options...
Juz Posted November 23, 2009 Share Posted November 23, 2009 ive gave it a service to day ie done fuel filter,air filter,oil filter,glow plugs,cam belt,all fluids engine,gear box,trans box and diffs cleaned out intake pipes and inter cooler checked all intake pipes and hoses with still no joy im at a loose end now and it the back of my mind is should i get rid of it what would you say i should check now ???? I did all of those things too, and the lift pump and the fuel pump. It only takes 10 mins, whip out all 4 injectors and have a look. Juz Quote Link to comment Share on other sites More sharing options...
gee1599 Posted November 23, 2009 Author Share Posted November 23, 2009 if i take the injectors out what do i need to look for ?? Quote Link to comment Share on other sites More sharing options...
cieranc Posted November 23, 2009 Share Posted November 23, 2009 Take them to a specialist to get them re-conned. Quote Link to comment Share on other sites More sharing options...
reb78 Posted November 23, 2009 Share Posted November 23, 2009 I'd still try the lift pump. I think they fail more often than we think. I reckon they go gradually so you dont notice until the performance is really bad. Only 25 quid and if it doesnt work at leat you know you have a good one on there. Quote Link to comment Share on other sites More sharing options...
poohbear Posted November 23, 2009 Share Posted November 23, 2009 have you checked that the throttle is opening fully? When I got my 90 I found the throttle cable had some slack in it, when the pedal was on the floor the throttle was only half open! Worth a try. Dave. Quote Link to comment Share on other sites More sharing options...
gee1599 Posted November 23, 2009 Author Share Posted November 23, 2009 the first thing i checked was the throttle cable thats fine with no slack and fully open on pump i have ordered a lift pump should be in tomo i dont think its that as it primed up the new fuel filter fine (but i will replace it anyway) do the boost diaphrams go i.e split in the diesel pump ??? Quote Link to comment Share on other sites More sharing options...
flatback90 Posted November 23, 2009 Share Posted November 23, 2009 yes they do (check the tech forum) and also check the vacuum pipe from the turbo to the pump. mine split in my 300tdi and it was similar to what you described. Quote Link to comment Share on other sites More sharing options...
poohbear Posted November 23, 2009 Share Posted November 23, 2009 oh well worth a try. I had a split diaphram on my old TD - only symptom was that the engine tried to run away and kill itself after idling for a while, can't remember any lose of power though. Quote Link to comment Share on other sites More sharing options...
Juz Posted November 24, 2009 Share Posted November 24, 2009 I did all of those things too, and the lift pump and the fuel pump. It only takes 10 mins, whip out all 4 injectors and have a look. Juz if i take the injectors out what do i need to look for ?? In my case it was pretty obvious, they were caked (and I mean caked) in sooty carbon crud. £80 and 24hrs at a specialist injector place had them looking shiny and new. Fixed the problem instantly. Juz Quote Link to comment Share on other sites More sharing options...
q-rover Posted November 24, 2009 Share Posted November 24, 2009 why so slow ??????? It's a diseasel, what do you expect? Quote Link to comment Share on other sites More sharing options...
reb78 Posted November 24, 2009 Share Posted November 24, 2009 the first thing i checked was the throttle cable thats fine with no slack and fully open on pump i have ordered a lift pump should be in tomo i dont think its that as it primed up the new fuel filter fine (but i will replace it anyway) do the boost diaphrams go i.e split in the diesel pump ??? The fuel tank may also pressurise with a split boost diaphragm. Certainly does on a TD, so i think it would on the tdi. Quote Link to comment Share on other sites More sharing options...
gee1599 Posted November 24, 2009 Author Share Posted November 24, 2009 right fitted a new lift pump checked the diphragm and hose no splits or leaks checked and adjusted valve clearences and pick up in the fuel tank still no joy its not even worth putting the vehicle in 4th or 5th cos it dont go no faster i know there will be no land speed record but i would like to be able to get to the speed limit any one no where i can take it im near gatwick airport or is it going to end up on ebay ? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted November 24, 2009 Share Posted November 24, 2009 There's a couple round here, you could try Surrey 4x4 (Dunsfold LR), or the 'Man for Land Rovers' at the Thatched Garage. There's also InsideOut4x4 at Capel. Depends where you are in relation to the airport? Pop your location in your profile, may be able to find some local expertise/help? Quote Link to comment Share on other sites More sharing options...
TD5 power Posted November 24, 2009 Share Posted November 24, 2009 hi as has been mentioned before i would have the injectors out and get them pop tested, they basically just connect the injector up to a hand pump and pressurise it until it fires noting the pressure and the shape of the spray as well as any drips before it fires. If it opens a too lower pressure, leaks before it fires or sprays a jet of diesel rather than a fine mist then they will recondition them for you. Paddocks do them fairly cheaply service exchange but i don't know who they get them from so quality could be ? Have you tried removing the union from the tank and the inlet to the filter and trying to blow it out with an airline from the filter end, if it has sucked something up from the tank it may have got through the pickup in the tank and is now stuck in the line. Your only other possibility i can think of then is the injection pump itself matt Quote Link to comment Share on other sites More sharing options...
gee1599 Posted November 24, 2009 Author Share Posted November 24, 2009 i tryed my mates injectors out of his and he tryed mine no diffrence to both checked and put a air line down the fuel lines i have done every thing?? i also think its the pump inside out 4x4 said it could be the head gasket of valve train but i dont think it is as ive done a block test compression test and a cylinder leak off test starts and runs fine no missfires etc just very low on power i think its to do with the pump (boost part) as only seams to have problem under load inside out also said if its the pump it wood miss ans stall etc i think im going to have to give in and take it some where ???? Quote Link to comment Share on other sites More sharing options...
western Posted November 24, 2009 Share Posted November 24, 2009 this fault finding chart might help diesel fault diagnosis chart.pdf Quote Link to comment Share on other sites More sharing options...
lrfarmer Posted November 24, 2009 Share Posted November 24, 2009 i tryed my mates injectors out of his and he tryed mine no diffrence to both checked and put a air line down the fuel lines i have done every thing?? i also think its the pump inside out 4x4 said it could be the head gasket of valve train but i dont think it is as ive done a block test compression test and a cylinder leak off test starts and runs fine no missfires etc just very low on power i think its to do with the pump (boost part) as only seams to have problem under load inside out also said if its the pump it wood miss ans stall etc i think im going to have to give in and take it some where ???? when i was running on my TD engine i could only get 55 out of it but when i fitted the 200tdi still couldn't go over 65 it wasn't till i canged the gear box i started getting any were but i've now got a disco box on it and can get 80+(not nice on mud tyres mind). Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted November 24, 2009 Share Posted November 24, 2009 Just a thought, but have you checked that all the brakes are running free? I would have thought it would affect it across the whole speed range, but you never know. The injection pumps do wear, only way to be sure if it's causing the issue is to change it or have it re-conned. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted November 24, 2009 Share Posted November 24, 2009 when i was running on my TD engine i could only get 55 out of it but when i fitted the 200tdi still couldn't go over 65 it wasn't till i canged the gear box i started getting any were but i've now got a disco box on it and can get 80+(not nice on mud tyres mind). A standard Defender 1.4 box on a 200Tdi engine will easily exceed the speed limit, although a 1.2 will allow for a greater top speed yes. Quote Link to comment Share on other sites More sharing options...
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