Vehicle & Technical > Defender

2.5 petrol, 2.5 diesel how much difference? fitting 200tdi?

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spy:
Hi all,

Just wondering how much difference there was between a 2.5 petrol and a 2.5 diesel 110?  I dont mean engine but are gearbox, etc the same?  What about exhaust setup?  

How much more work is there in fittin a disco 200tdi engine into a 2.5petrol 110 than the 2.5 diesel?   Any real difference?  

Cheers,

Mike

90sam:
the gearboxes, are the same and i doubt it will be that much harder. heres a link i found helpful!
http://www.llawnroc.f2s.com/200tdi_conversion.htm

sas pinkie:
As far as I recall, the 2.5 petrol hasnt got a fuel return, which will be needed by the diesel. The fuel lines will run in a different route. So as long as you get some deisel fuel lines with the engine then not much more work to put it in.....

The rest will go in the same, regardless of petrol or diesel..... (you will also need a wire loom with the relay in for the glow plugs as you havnt got the glow plug switch posistion on your ignition switch....)

Another thing to check... On most deisel cars, they tend to have heavier duty springs on the front as the engines tend to be heavier, dont know if this is the case with defenders, of course, if you have already upgraded the springs it wont be a problem.

muck_truck:
The transfer box may also be different.  if its a 2.5na the transfer box will be a 1.6 (not sure in the pertol though)

it would still work with a 200Tdi but motorway speeds will be slower compared to a 1.4 transfer box that would be on a Tdi.

sas pinkie:
I personally would source a military spec gearbox (lower first and second ratios) and then attaching a disco transfer box.

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