Adding A/C to a 200tdi Defender - Defender Source
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  #1  
Old November 3rd, 2010, 02:17 PM
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Adding A/C to a 200tdi Defender

Looking for tips / information about adding A/C to a 200tdi Defender specifically around compressor, lines and mounting.

1984 90 updated with a 1993 Defender 200tdi (used all factory parts so it sould be almost exactly like a 1993 200tdi)

From what I have read it is easiest to start with a new Elite system so I am planning to start with that, not sure if I should buy a kit with or without the compressor as Mike from ECR posted that a V8 compressor is the best fit for a 200tdi.

I already have the 3 groove pulley on my motor so I belive I am good to go there.

Not sure what to do about the compressor, lines and mounts?

Anyone out there have any information
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  #2  
Old November 3rd, 2010, 03:56 PM
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Todd Miller
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interested in this also. How do you mount the Comp. to the front cover assy.?
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  #3  
Old November 3rd, 2010, 04:01 PM
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There are factory mounting points on a 200TDI on the timing cover in front of the injection pump. Keep in mind the factory belt uses a tensioner, which I would suggest is needed as the belt is quite long.
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  #4  
Old November 3rd, 2010, 04:14 PM
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On the 200 the injection pump pulley access plate is removed and thats where the tensioner pully bolts on. The compressor mount is a two part aluminum affair. I have the diagram somewhere with part numbers. The 300 compressor is a serp belt pulley compressor and you will need a v belt pulley one. and the way they mount is different as well.
If you want the part no's I can dig them up for you. Basically the 200 defender setup is the same as the 2.5 turbo setup.
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  #5  
Old November 3rd, 2010, 04:28 PM
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George Kase
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Hey Doug,
I'd be interested in the 200tdi AC info too...
George
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  #6  
Old November 3rd, 2010, 05:12 PM
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so if I order an a/c unit from Elite I don't need the 300 tdi compressor? but I will need to source one from a 1994 or 1995 NAS a/c system or old RR classic?
My timing cover does not have the mounts like a Disco 200 tdi does. can the Defender cover be swapped to the disco stlye cover with the mounts? probably a stupid question, but anyway.
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  #7  
Old November 3rd, 2010, 05:22 PM
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Quote:
Originally Posted by discotdi View Post
so if I order an a/c unit from Elite I don't need the 300 tdi compressor? but I will need to source one from a 1994 or 1995 NAS a/c system or old RR classic?
My timing cover does not have the mounts like a Disco 200 tdi does. can the Defender cover be swapped to the disco stlye cover with the mounts? probably a stupid question, but anyway.
It can but what a pain in the a$$. Even the water pump,ps pump etc would have to be changed. The defender case gets drilled and tapped 2 the machined flat spots, then a mounting plate bolts on and then the actual comperssor mount bolts to that plate.
I'll see if I can pull that page from the parts book as a pdf and get Charles to post it.
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  #8  
Old November 3rd, 2010, 06:01 PM
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excellent thanks. probably NLA from LR now though.
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  #9  
Old November 3rd, 2010, 06:59 PM
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What is the arrangement for the step up idle with the compressor on a tdi?
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  #10  
Old November 3rd, 2010, 07:28 PM
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From the 200tdi manual
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  #11  
Old November 3rd, 2010, 10:05 PM
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As stated, the mounts are there. The factory just decided not to drill and tap the holes. It is a quick and easy job to do it.
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  #12  
Old November 4th, 2010, 08:03 AM
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We have V belt style compressors for the 300 Tdi style AC kit. Its what we use when doing AC on 2.25 petrols and other add stuff.
Not sure how that would work on a 200 Tdi, but if you could make it work then you could use all the hoses and such that come in the Tdi AC kit and the only custom thing would be the mount and making a tensioner work.
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  #13  
Old November 4th, 2010, 09:21 AM
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Thanks for the info Mike.

Looking at the parts catalogs and online it looks like the Defender 2.5 petrol, 2.5 NAD and the 2.5 TD and the 200tdi all use the same mount from what I can tell.

Do you use the stock mount for the 2.5 or do you make a custom one? If custom what is diffrent from the stock mount?

Thanks for taking time out of your day to share with us
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  #14  
Old November 4th, 2010, 09:24 AM
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A couple pics of the 200tdi Defender motor looks like the mount sit on top of the timing checst. Not sure about the tensioner, maybe someone that has seen one can confirm.
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  #15  
Old November 4th, 2010, 10:24 AM
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The original 200 Tdi AC compressor is a thing of the past (from my looking around), and if you find one it won't have the right hoses to work with a newer style AC system. So I never went after looking for the mounts and all for that old compressor (as they don't work with the newer compressors). So I think it is easier to adapt the 300 Tdi system to the engine. Get the idler and such from a 200 Tdi, a V belt 300 Tdi compressor and make the mount and the rest works.
It really just depends on what you think is easier: making a mount, or making a bunch of hoses and finding fittings and such. Lots of ways to go, just depends on what way you want to go.
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  #16  
Old November 4th, 2010, 10:32 AM
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I Googled some of the bracket part number etc and they come up on Britpart, but they are stupid expensive!! Like $800++ for just the main brackets, not to mention the idler etc. May be much cheaper to fabricate brackets etc.
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  #17  
Old November 4th, 2010, 05:59 PM
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Yes, just make a bracket. The tensioner replaces the timing access cover. They also use a different lower rad hose to clear the belt.
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  #18  
Old November 4th, 2010, 07:24 PM
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I just happen to have a 300 Tdi V belt compressor (new) that I want to part with (at cost) from another project that didn't use it. Buy that and one of the old stock Tdi AC systems (the old system, not the new style) from Stephen and you are golden.
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  #19  
Old November 5th, 2010, 09:18 AM
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Quote:
Originally Posted by ECR View Post
I just happen to have a 300 Tdi V belt compressor (new) that I want to part with (at cost) from another project that didn't use it. Buy that and one of the old stock Tdi AC systems (the old system, not the new style) from Stephen and you are golden.

Sending you an email on the compressor.

Can you eloborate on the diffrence between the old systems and the new systems and when they changed?

thanks
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  #20  
Old November 5th, 2010, 10:55 AM
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Quote:
Originally Posted by dave_lucas View Post
Sending you an email on the compressor.

Can you eloborate on the diffrence between the old systems and the new systems and when they changed?

thanks
New systems are like the ones from 2004 until the new dash in the 2007 Defenders. It is one piece that goes under the dash and the evap. and the duct is all one piece.

The older systems are like those found in NAS 90s. The evap. is one piece that goes in the RH footwell and then you add the ducting onto it so there are 2 large pieces in the interior. Same system as found in 97 NAS 90s.

If you have a new bulkhead the newer systems work better (as the large hole for the evap. is already there). If you have an NAS bulkhead the older system might be a little better (no hole to cut).

However, the bummer is that the early system is no longer supported for parts, so if something breaks you are screwed.
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