SLROC Forum

Hi all. I have recently installed a defender 200tdi engine into my 90. It was a 2.5na, I have it starting perfectly now but it's running fast. Im guessing at around 1.5 - 2.5 k rpm. I have tried the adjustment rod on the injection pump. No difference. Any ideas how I can bring the rpm down? I have removed the viscous fan so maybe the engine is set up for more load in it?

you have adjusted the throttle cable correctly .................


right?

Yeah. Think that's the only bit I done right. All the intercooler hoses were mixed up so I think that's why it was running fast. I just need to figure out where each hose goes.

how the intercooler is plumbed or where the hoses go wont make it run fast, if its running fast its getting more fuel than it needs as such,

so either you have something holding the throttle open or someone could have played with the smoke screw on the back of the pump which when adjusted in to give more power will also increase the tickover,

however if you have adjusted the correct stop & allowed the throttle arm to rotate back more than what it was & the idle hasnt come down then id say you could possibly have a injection pump issue

I had both intercooler hoses running to the turbo? Won't that cause the running issues.

seriously how can you manage to do that 

did you connect the turbo inlet to the intercooler that was then fed by the outlet of the turbo?

as in out the turbo through the intercooler & back into the turbo?

with nothing on the inlet manifold?

I wasn't really paying attention as I knew I still had the air box and snorkel to fit. I just threw it.all on. Lol. I was using a picture for reference and it turned out to be a 300tdi. Oooops.

as they say on lions den,



im out


too much face palm in here tonight

right,, made new hoses.. installed them where i think they should go now.. no difference at all.. any ideas guys. really want to get some use out of theis 90 soon.. 

Which throttle cable did you use, the disco or your existing defender one?
When I fitted my 200tdi the defender cable didn't fit correctly, so I used the disco one, it fits perfect and allows for full adjustment.


The turbo hose intake/ front should go to the bottom fitting/ outlet from your air filter. The out let from the turbo should go to the bottom intake from the intercooler and the top hose from the intercooler should return to the engine to the intake manifold above you exhaust.

hi i used the defender cable as im fitted a defender engine not a disco one.. ill see how i fitted the hoses and see if i mixed one up again, this is the hard bit as its the first time i have done this.., wish me luck.. thanks..

Still not having any joy. Anyone near Dundee fancy having a look over it to see if they can see something I have missed? I think it's drawing in air but can't find out where from as it's stops hissing by the time I get under the bonnet. ;(

it can draw in as much air as it wants, its not an air leak thats making it run fast...........

Hmmmm. Will it run if I strip all the intercooler hoses off? And servo hose so I can try and eliminate those areas? I'll maybe have to get a garage to finish this of for me.    thanks mate. Appreciate the advice.

it will run if you strip all the pipework off back to the inlet manifold,

Servo hose is a vacum not pressure