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  #1  
Old 11th-July-2009, 22:15
dr pepper's Avatar
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Default 300 tdi in a series.

Hi guys,

Been offrered a 300tdi engine cheap, was wondering what is involved in converting a series 3, I've tried reading some of the threads here but I'm a little confused.
The 200tdi fits straight in a series using the original series mounts, but I've heard that people have re positioned the mounts with disco ones ground off the donor car when converting to a 300 tdi.
Can I just drop in a 300tdi into my series without the turbo using the usual mods on the flywheel housing etc, or do I have to move the mounts etc.

I need to decide which way to go soon, whether tranny engine or 300tdi, the tdi would be nicer as its quiter and would be worth more once converted.

Ta.
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  #2  
Old 11th-July-2009, 23:29
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Default Re: 300 tdi in a series.

With the 300 i am pretty sure you will have to move the mounts
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Old 12th-July-2009, 07:16
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Default Re: 300 tdi in a series.

Once the mounts are moved tho shouldn't it be easier to route the exhaust because of the turbo positioning?
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Old 12th-July-2009, 09:18
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Default Re: 300 tdi in a series.

Even if it's a bit of a fiddle a 300tdi is much better than a transit engine. It's a no brainer.
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Old 12th-July-2009, 09:40
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Default Re: 300 tdi in a series.

Is the stud pattern on the flywheel housing of a 300tdi engine the same as that of a 200tdi engine then? Can you bolt it onto a series gearbox without too much trouble as you can with a 200tdi?
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Old 12th-July-2009, 10:07
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Default Re: 300 tdi in a series.

Think so. Someone will no doubt be along with the definitive answer in a minute.
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Old 12th-July-2009, 10:11
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Default Re: 300 tdi in a series.

I've got a feeling that the flywheel housing on a 300tdi is incmpatible with a series gearbox. Perhaps it's possible to use the flywheel housing from a 200tdi? The other option is to use the R380 gerbox which is what the 300tdi is designed to have bolted onto it, but then you run into problems of making custom propshafts (where the rear prop is likely to end up being too short because the R380 gearbox is longer), altering the transmission tunnel and seat box, welding on new gearbox mountings, and the problem that the front axle on a non V8 series Land-Rover is unsuitable for use with a permanent 4 wheel drive gearbox. If you want a turbo engine in a series Land-Rover then I think a 200tdi is the simplest and least expensive way to do it, but turbo engines need a larger bore exhaust system than the standard series exhaust and a large bore exhaust system for a series Land-Rover with a 200tdi engine would be difficult to make yourself and buying one from Steve Parker is going to cost about 300. There is then the problem of mounting a radiator, oil cooler and intercooler and plumbing them all in. A 200tdi engine without the turbo seems a very simple and fairly cheap way of getting a decent engine into a Series Land-Rover, because the standard series exhaust system, and cooling system can be used, although it does seem a bit of a fiddle to fit a series diesel exhaust manifold to the tdi engine. I doubt a 200tdi engine with the turbo taken off would go as well as a non turbo transit engine though.

Last edited by fenby1976; 12th-July-2009 at 10:14.
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Old 12th-July-2009, 10:18
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Default Re: 300 tdi in a series.

fitting it without the turbo seems a bit pointless. the extra effort would be worthwhile surley. Jai
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Old 12th-July-2009, 13:02
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Default Re: 300 tdi in a series.

bollix, glad I didnt buy it then, the tranny engine the same guy has is a turbo and it will fit with the turbo on, its a modded tranny turbo engine not an original, it has a garret tc2 charger and yellow injectors as well as a bosch 146 pump, all in all a well sorted motor owned by an enthusiast I spoke to the owner a bloke from a garage local to the breakers.
The exhaust size is a concern, but I can adjust boost pressure a lot lower which would help things.
The geyser at the breakers wasnt so sure about which one the disco was a 200 or a 300, how can you tell the diffo, it was a L reg thats all about I know, I tried the gearbox ID trick by looking for the reverse gear but the knob was missing!.

Last edited by dr pepper; 12th-July-2009 at 13:11.
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Old 12th-July-2009, 18:40
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Default Re: 300 tdi in a series.

The 300 and 200 Discovery Tdi engine are interchangeable as far as gearbox mating goes, so a Disco 300 will bolt straight onto the Series box.

You will have to move the engine mounts as there are in a different place between 200 and 300.

The 300 turbo is also in a higher location and is actually a pretty good place for putting in a Series. This can be espcially handy with a LWB Series as the chassis rails are deeper top to bottom and the 200 turbo ends up 'clashing' with the chassis.
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