Thread: petrol to diesel conversion

bearing in mind my memory is not 100%

engine and gearbox as best i recall as there are different bell housings and mainshafts used.

I can tell you they look the same but I havnt dropped a Tdi into a V8 disco engine bay to try it but if the rangie guys do it then there shouldnt be any probs doing it to a V8 Disco as they are the same set up.

Do a search as there was a Tdi into Rangie conversion photo's around a while ago that you may be able to sneak a peak.

It would be a lot easier to go V8 to Diesel than the other way around so it should be pretty straight forward.

Thanks guys, I probably should have mentioned that my V8 has the auto box behind it.

I have been lead to beleive that the auto is different between the petrol and diesels with slightly different ratio's to suit the engines better. So therefore, I will change the engine AND gearbox at the same time so wont have to worry about input shafts etc

I am sure that the diesel will fit into the engine bay, but just dont know if they use the same mounts on the chassis or whether I would have to change the mounts on the chassis as well as changing the gearbox cross member

if I get a whole rolled/wrecked Tdi then I can just change all the necessary bits and pieces over, easy as, just not sure if I want to muck around with welding new engine mounts to the chassis as they should be engineered etc

eventualyl got the search button to work properly hint - use the advanced search, the other one is useless

found my answer here 300Tdi into V8 (disco)

'i converted my 95 disco v8 and installed a 300 tdi two years ago, it turn out more of a job than i thought, had to install the tdi auto box as the v8 auto doesnt fit which means the props as well, the gearbox subframe had to be changed as well, along with radiator, hoses etc, and the engine mounts of the v8 have to be cut off and the tdi welded in a diiferent place, the fuel tank and lines etc also replaced, the rad and intercooler fit almost straight in, the battery has to move unless you rewire all the loom, ( starter on other side) exhaust and mountings, throttle cable, servo pipe, autobox cooler, and so on on on... but i did it and its been fine and a fuel cost saver.'

looks like a bit of work but not impossible

Either way Mark, theres going to be a certain amount of work in it. Ill help you as much as I can, but when JC Almighty comes back we can get some info from him.

What you need is my 300Tdi Disco. Do the changeover both ways and sell it afterwards with the V8.

Originally Posted by p38arover

What you need is my 300Tdi Disco. Do the changeover both ways and sell it afterwards with the V8.

worth considering, will have to see the Minister for War and Finance first

funny how these things are ignored, she wants a house....I want a bush truck .... I know who will win and it aint me

I looked at an engine swap, td5 into my 300tdi, however the cost was going to blow out to more than I could pick up the car for.

Then the time to do it, I would be able to swap over most if not all of the extras.

The power drop going from a v8 to the diesel is huge as well, but some of the things I might be able to help on as a mate has the V8 and I the diesel so measurements etc could be taken and compaired.

The autos are different (bummer as I need one and mate has 3 V8 ones)but the prop shafts are not (mine is running a V8 Rangie rear shaft). I will check the engine mounting points for you later this week.

I converted a Falcon from 6 to V8 once and I am still dissapointed to this day with the outcome (20+yrs ago)