SLROC Forum

HI
Need some advice.
Im building a 90 it was the factory chassis and had a 19j fitted so plan was a 200tdi straight drop in job. Got chassi galvied. Now i have cold feet on this engine i bought. Ran fine but milage was high and been reading posts of nightmare converetions etc i need reliablity. Ok so i got a 300tdi engine and know its history its a damn good engine. The mounts are wrong and i cant reweld the chassis without damaging the galvinising that section. I looked over the 300tdi and see why the mounts are wrong their further back but when you look forward behind the turbo are those secondary forward mounts that could possible take a mount i can use on a 19j mount setup?. Im more hoping its possible. Now i have spoken to a few folk aboot this and was told with a few mlount swaps and the righ gearbox etc you can use the old mounst and being the first of the 300tdi no real loom required, evryone else says reweld of the mountsa nd now i been toild i need the loom. If anyone can clear this up it be great id love the 300in the 90 otherwise im afriad the 200 will cost me a rebuild in no time. Cheers.

Bite the bullet and do the 200 before you put it in ?  Positives are that it fits easily, goes straight on the original gearbox, no messing with the chassis etc etc. Downside, time and cost.

The 300 does, indeed, need different mounts to a 200... and there is no way to convert.

On a 200, the turbo sits towards the rear of the engine, and vents backwards
On a 300, the turbo sits towards the front of the engine, and vents downwards.

Whichever way you go, the exhaust pipe of one will foul the mounts of the other.

Unless you are a competent welder/fabricator, I would replace a Naturally Asthmatic Diesel with a 200tdi as there is virtually no alterations to do to the fabric of the vehicle.

 
Thanks for the replys guys also got a PM of a good link on a 300tdi fitting. Looks like i was just hoping too much. Problem was i got the 300tdi after the chassis was done.

OK ive never actually had to ever repair and engine as ive always known their history. This had 245k on the disco it came from. Looks like its been tinkered in the past so dont even know if its original. Started fine ran smooth and ok but after 5 mins developed problem and ran rough. Dont hink it was overheating but scensors were all shot and the radiator was solid with shit. Personally i think it need a full rebuild any ideas of rough costs?.

Hi Guys
Ok sorry to keep going on about this i will admit defeat but only as a last resort.
So i took the mounts i had on my 90 19jtd engine and fitted em in place on the 300tdi engine. I have a straight through replacement downpipe for this engine its original shape so goes downwards. The mount is about 2 inches away from the outer edge of the exuast flange i think its called wre it joins the turbo. I measured the distacnce from centre of each mount to dead centre of the join on engine to bellhousing and it was 20". is it a case i cant retrofit a 19j bellhousing to marry up with my gearbox and get the right length to run the 300tdi?.
No despirate hurry on this i want this engine in my 110 itsa  great engine with lots of history be febuary i do the swap.
Just wana clear this up kin if u ahve parts your always gona try make em fit. Otherwise its a reweld job on the mounts.
Cheers
Scott

I have a 200tdi sitting in my shed that has 250K on the clock. No bore wear, no lip at the top of the piston travel. You can even still see the honing marks!
It will make your job much easier if you could fit the 200. They do run and run with straightforward maintenance. Whip the head off if you want to see what the bores are like, you might find a really good service and clean up will restore it no problem, they are very very tough lumps.

Yea cant agree more the defenders i ahve tried with a 200tdi fitted are lovely to drive granted they seem a good strong engine. If i can figure oot if somehow i can fit a 300tdi to a 19j mount i can use the 300tdi in my 90 rebuild and then be a straight drop in job to the 110 useing the 200tdi like you say just goes in. Problem is i cant reweld the galvi chassis on the 90 so its kinda stuck with the 200tdi for now. Im gona keep searching.Cheers for the advice.

I put a 200tdi into a 110 instead of the 2.5d. Can't remember any mount issues, I know I had to drill out a couple of holes at the bottom of the bell housing to take extra studs on 200tdi. The useful bit might be that the downpipe from a 2.5 turbo is the right fit and keep the old exhaust.
I now have a 300 in a Disco and I really miss the low down torque of the 200. It only wakes up at 2k rpm. Is this a known fact or is the turbo shagged?

Well done a wee bit more reading seemigly it ahs been done dropping a 300tdi onto a 19j mount setup. They swapped the turbo inlet manifold so that the turbo exited backward maybe a 200tdi inlet with a  rotated turbo? so it was way off the engine mounts. No pictures just hear say but sounds promasing.
Im just gona drop the 200 in the big fellie its juts passed its MOT so a wee present.