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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4218

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Twin Alternators?
Just curious, not planning anything, has twin alternators ever been fitted to Puma? It looks like it would be quite straightforward on non-ac model. 2007 110 TDCi Station Wagon XS
Post #923266 28th Sep 2021 7:40pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20472

United Kingdom 
No I haven’t seen any, only on previous models.

Mechman alternators look good in the States, but the Defender puma motor (2.4 and 2.2). Aren’t common over there at all.
Ideally need some old past it alternators for accurate measurements of the mounting bolt system. I would have thought with some engineering experience and capability and access to proper tooling I’d imagine something could be looked into.

Or a 3D printed mock up first of a bracket.
The factory alternators have a pretty good output, which we are lucky to have but you are right that on a non AC defender a bracket system should be possible to be made.

I’m guessing possible lack of demand is the reason for non production, with previous models many were required as an upgrade due to lower Alt output. Which in turn created demand and thus sales.

Somewhere like Mechman maybe able to help, but shipping and things like that maybe cost prohibitive. No Guts, No Glory.
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Post #923274 28th Sep 2021 8:28pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17464

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Yes, many factory-supplied utility company vehicles have a second alternator mounted where the a/c compressor would be fitted on the school-delivery-versions. Someone clearly makes a fitting kit for this, but I have no idea who it is. It is a very neat installation, but sadly I don't have any photos of one.
Post #923277 28th Sep 2021 8:34pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20472

United Kingdom 
Was it LR special vehicles division perhaps? They would make and prepare the cherry pickers and things like that for power companies and BT etc. No Guts, No Glory.
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Post #923284 28th Sep 2021 8:50pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17464

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Yes, I think it is highly likely that the vehicles I have seen have all had SVO conversions, however LR would undoubtedly have subbed out the fitting kits. It may be that it is listed in a Special Vehicles options list or parts catalogue, but I have never seen such a thing for the TDCi.

The a/c location would also be a handy place for an engine-driven compressor or hydraulic pump.
Post #923309 28th Sep 2021 10:40pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17464

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Photos of an SVO fitment, 2.4 TDCi. Very neat!


Click image to enlarge




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Click image to enlarge
Post #923705 30th Sep 2021 1:01pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4218

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
Thanks for pics. I wonder why they couldn’t design it so that it drove the alternator directly, instead of via that rotoflex coupling. 2007 110 TDCi Station Wagon XS
Post #923713 30th Sep 2021 1:10pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17464

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I think it is because the alternator would foul the turbo actuator.
Post #923803 30th Sep 2021 8:52pm
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